A LIST OF THE BEETLP:S OF THE DISTRICT OF COLUMBIA.
By Henry I^lke.
I. INTRODUCTION.
The following- list of the Coleoptera of the District of Columbia is the result of a diligent search extending over a period of nearly forty years. In the fifties, the city of Washington was still surrounded by man}^ fine woods and loyel}" meadows, which promised the entomologist and l)otanist a rich harvest. In truth, almost every collecting excursion in those days furnished abundant new material and raised the interest and enthusiasm of the collector to a high pitch. With the beginning of our civil war, the woods on the Virginia side of the Potomac began to disappear, and not many years later the pleasant fields and woods north and northwest of the city were occu- pied by citv extensions, avenues, and building lots, so that one hunt- ing ground after the other was captured by advancing civilization. Nevertheless the right bank of the Potomac, between the Aqueduct Bridge and Little Falls, remained a rich field for the collector until quite recently, when it, too, began to suffer from the inroads of the stone quarrymen and others. As a result of the destruction of forests and meadows, a number of beetles seem to have disappeared, which were formerly quite common, such as Boros unicoIo7\ Dorypliora juncfa., and Larleohlus c/'/'e/isoni, while other species were introduced with the extension of agriculture and horticulture. Among the introduced species, some have multiplied so fast that they ma}" now fairly be considered pests, such siii IVii/t(mo//im panctatus and Sltones hixjjidulus. A large por- tion of the District, however, still remains unexplored, and only recently the southeastern region, toward Marl}>oro, furnished l)otan- ists several species not previouslj" enumerated in Lester F. Ward's excellent List of the Flora of Washington and Vicinit3\
Proceedings U. S. National Museum, Vol, XXV— No. 1275.
Proc. N. M. vol. XXV—0-2 —— 1 i PROCEEDING!^ OF THE NA TIONAL MUSEUM.
The northeastern region, in the neighborhood of Oclenton, should also be studied more carefully, as, for example, the sand dunes there constitute the only places where the rare Cremastochilus lemostlctuH was found. Notwithstanding the attendant difficulties and large extent of unex- plored territory to furnish a nearly complete list of the Coleoptera of the District of Columbia, I must acknowdedge that success is in part due to the encouragement of my friend, E. A. Schwarz, who kindly lent his wide experience and assistance in preparing the annexed biological notes. The following important facts have been observed concerning the relation existing between the local geology, flora, and general fauna and the occurrence of the District beetles in special.
It is a well-known fact that the distribution and varied hal)its of Coleoptera aiford. such striking features that the general physical characteristics of any locality can be determined from an average collection of the beetles of such region. The number of species found in the District of Columbia, or, more broadly, in an area within a radius of 20 miles of the Capitol, is not less than 3,000. This is a much larger number than has been recorded from local lists of any other equal area in the United States. It repre- sents about one-fourth of the total number of species now recorded from North America north of the Mexican boundary. Let us now examine the physical conditions which form the environ- ment of the Coleoptera here. The geology of the District presents the following features: Washington City is chiefly built upon thin beds of sedimentary sands, clays, or gravels of the Post-Jurassic age, covering the Archean crystalline rocks—chiefly gneiss and granite. Satisfactory exposures of these rocks are to be found only in the deep ravines cut by the Potomac and Rock Creek or their tributaries, since, at the surface of the Washington plateau, their character has been ol)scured or obliterated by extensive superficial decay and by cultivation. Toward the west the gneisses, which are for the most part granitoid in character and possess a north-south strike, become somewhat more foliated and schistose. In many x)laces it appears that the granites and gneisses have been subjected to extensive metamorphism. Near Georgetown and Cabin John occur pronounced developments of a massive dark-green diorite, and in other localities are found bands of siliceous and chloritic schists. These, however, grade imperceptildy into the prevailing granite and gneiss, and probably represent the result of intense dynamic action. Limited occurrences of gabbro, ser- pentine, and steatite complete the list of eruptive rocks found in the District. Altogether they contain at least forty diflerent mineral species. . '
NO. 1275. BEETLES OF THE DLSTRICT OF COLUMBIA— ULKE. 3
The soil formed by the decomposition of the above .sediments and roclcs is so varied in character that it is able to support no less than 1,400 species and varieties of vascular plants. Now, as about half of all the beetles depend upon plants for theii'
food, the greater the variety of food plants the larger we find tiie nund)er of species of beetles. The geographical position and topographical features of the District of Columbia also largely account for its diversified insect fauna. The coastal plain deposits, concealing the crystalline rocks of the eastern and southern portions of the District, are formed into numer- ous terraces, so that Washington is surrounded by low hills on all sides, except where the Eastern Branch and southeastern shores of the Potomac flatten out into marshy grounds. As the District lies on the border of the crystalline plateau and the lower coastal formation and at the head of tide water on the great lowland plain, which extends from New York to Richmond, the local fauna has the composite character belonging to the upper austral,
lower austral, and the transition zones, or, to be more exact, it has the facies of the Allegheny, Carolina, and austro-riparian regions, as classified by Dr. C. Hart ]\lerriam.^ In a region so restricted and comparatively level, there are of course no such changes in the temperature as in mountainous countries, where we find forms of insects on the top of mountains ver}^ different from those below, the former being always of a more northern type. The appearance of northern and southern forms are here controlled by the change of seasons, so in early spring we may always expect more northern types, while in midsummer the southern ones predominate. There are other local causes which influence the character of our fauna. The Potomac River ever}^ spring carries down quantities of flood debris from the mountain districts, containing insects which properly belong to higher elevations, for example, Phellopsis obcor- data^ Pinodytes cryptopliagoldes^ Carehara longula^ Enchodes sericea, and several Carabidfe, Longicorns, and Elateridte. Southern forms have been observed chiefly in the middle and eastern part of the District as along the Eastern Branch, where species were collected,
such as' Casnonia licdoviclana^ Cymmdls elegans^ Tludpiws dorsal !s^ and several Chry some lidte The great attraction of the electric lights for insects has also resulted in the discoverj- of certain kinds, whose occurrence here was not pre- viously known with certainty, such as Oinoj)hron lahiatimu Cllvina punctigeifa^ Platynus picticoimis^ Rliantus calidus^ Ataenius figurator. PleurojplioTus ventraUs, and Donne/ a hypoleuca^ which belong to the austroriparian fauna.
'The geographical T)istril>ntiun To convey a correct impression of the g-eographical distribution of the ])eetles, it is absolutely essential to obtain accurate lists of the ('Oleoptera of the different sections of this country. The first step \n this direction was taken by Messrs. E. A. Schwarz and H. G. Hu])baid, who prepared the Coleoptera of Michigan and Florida, and their exam- ple was followed by numerous other entomologists. Of special inter- est for comparison is Dr. John Hamilton's Catalogue of the Coleop tera of Southwestern Pennsylvania (1895). There are especially three localities in the immediate vicinity of Washington which have been very carefully explored by the ento- mologists: The meadows, rocks, and woods along both sides of the Potomac and including the river flats across Long Bridge; the valleys of the Rock Creek, and the banks of Eastern Branch. The richest collecting ground near Washington has been the rocky ledges and ravines along the south banks of the Potomac just above the Free Bridge. The Rock Creek region is also full of interest. The creek cutting its snake like course here through solid rocks, leaves deep ravines and winds its way among mossy sand Imnks and swampj?^ meadows, presenting a variet}' of conditions that always assures the collector a rich harvest. In striking contrast to the above localities arc the banks of the Eastern Branch, with their extensive marshes of wild rice. Here a great many species were found not occurring elsewhere in the District. Some representative forms of the austroriparian fauna arc found all along the Atlantic coast from Florida to New Jersey, but the majority do not extend more northerly than the Chesapeake region, while certain northern species find their southern limit of distribution in this vicinity. The following arc examples of austroriparian species which tind here their northern limit: Oinopln'on lahlatam^ PlatynuH strlatopunctatu.s and jjictleoniix, Aiiaf>'!cJi!s iithiuta^ Celina angustata, Bryaxis l}eJfra(/e/^ Lio rechmi^ Mci'intlnis. scohhiuhi^ lschiod(mtu>i solcatus^ OzogtiatJnis jlorldanus, (Ed/o)n/ch!s buligoptera^ Lactica tlbialif<, Mecynotai'> Xyloph'd ii>^ notatas^ Jlyporhagus punctulatus^ Liopus ctossuIus, Au- Icutes tdcJiygouoldeK^ Ceutoi^hynelms sicvJux^ Ooinorphldlus Isevlcollis, Ch»t()ca'h(s setoKus^ and others. Of Alleghenian forms, which tind here their southern limit, we have: dcindela I'mjifronK^ LSla fui'sada^ Ipx confltioduK, Boras unlcol<>i\ Ldt'tcohlus erichson/\ liJi/xoi^niiiis vtrldlxneux^ Ckirehai'a longida^ Enchodes sericea, Pteroxftclntx corvlnus^ Platynus ohsoletus, Acalyptus carpini, and others. The great bulk of our Coleoptera, however, belongs to the Caro- linian fauna. " N0.127S. BEETLES OF THE mSTIilCT OF COLUMBIA— IJLKE. 5 As this manuscript was prepared nearly four years ago, papers on North American Coleoptera that have been published since have not been taken into consideration. Some of the changes in the nomencla- ture established in these papers have been inserted, but many others could not be attended to. Everyone familiar with the systematic study of North American Coleoptera is aware that in many genera of various families we have a larger or smaller number of undescribed species; the description of which must by all means be left for future monographs. Such species are omitted in this list; they are most numerous in the subfamily Aleocharinee of the famil}^ Staphylinidaj, in the Cioida?, Cryptopha- gida?, etc. A local faunal list acquires interest and importance onlv when compared with lists of adjacent regions. As to Coleoptera we have the list by the late Dr. John Hamilton^ on the Coleopetra of south- western Pennsylvania, and that of Dr. J. B. Smith on the insects of New Jersey (second edition, 1899.) Both of these lists refer to regions north of the District of Columbia. Southward we have no compre- hensive faunal lists of Virginia, North Carolina, South Carolina, and Georgia. The list of Coleoptera of Florida, b}' Schwarz and Hulibard is also of importance for comparison with our District fauna. It is very gratifying to find that some of the younger enthusiastic students in the Division of Insects in the United States National Museum, and the Division of Entomology in the United States Depart- ment of Agriculture, such as H. S. Barber andF. C. Pratt, have taken up coleopterology and already give proof of their success in studying and collecting coleoptera. No doubt many additions will hereafter be made to the species enumerated in this paper. LIST OF SPECIES. PROCEEDINGS OF THE XATTOXAL miSEUM. BEETLES OF THE DISTRICT OF COLUMBIA — VLKE. LIST OF SPECIES—Continued. Olisthopus paniiatiis Say. 181. A m nra fallax Le Conte. 182. 183 micam Le Conte. 182. i literstitialis Dejean. 184. Perigona nigriceps Dejean. 133. chalcca Dejean. 185. jMiUipennis Le Conte. 134. ruJirira Haldeman. jmbescens Dejean. 135. musculus Say. 186. Atranus Leptotrcichelus dorsalis Fabricius. 136. Loxandms rectus Say. 187. 188. Casnonia pennsylvanica Linnanis. 1.87. minor Ohaudoir. ludomciana Salle. 188. erraticus Dejean. 189. janus Fabricius. 189. agilis Dejean. 190. Galerita bicolor Drury. 140. Dljylochila InticoUis Le Conto. 191. dorsalis Brulle. 141. Dicirlus dilatatus Say. 192. Thalpius Tetragonoderus fasciatus Haldeniai 142. purpiiratus Bonelli. 193. grandis Hentz. 148. o/v///,s Le Conte. 194. Lebia atriventris Say. 144. clongatus Bonelli. 195. tricolor Say. 14.5. (tmhiguus Laferte. 196. pidchella Dejean. 146. teter Bonelli. 197. marginicollis Dejean. 147. poUtus Dejean. 198. riV(V/;.y Say. 148. Badlder notatm Haldeman. 199. var. >iiir>:tii Le Conte. 149. y.,Jr/,J/».s- Le Conte. 200. 201. ptinn/.i iVj.'an. 1,50. imii'iilnfiis ix' Conte. ph'uritlni \a' Conte. 151. jhirliny \j' Conte. 202. viridipennis Dejean. 1.52. nih.riis Lr Conte. 203. lobidata Le Conte. 1.58. Calatltu.^ (jrnjnr'ni>i Say. 204. 205. ornata Say. 1,54. opacidus Le Conte. analis Dejean. 155. impunctatiisSaj. 206. fu.^rata Dejean. 15(). Phttynns eaadafns Le Conte. 207. ahdoinhndis (luuidoir. 157. (?(vv;».y Say. 208. saij}iil(irif< Dejean. 158. shiHatiis Dejean. 209. dvpnctn Horn. 159. (InctiroUis Say. 210. pcctlta Horn. im. rrHe.ni.'< Le Conte. 211. bivittala Fabricius. KJl. rjlni.^lroli:.^ Say. 212. arata Dejean. 162. iliTorns Say. 213. Coptodern DromiuspiceusT>e]e-a.u. 168. TOceren.5t Dejean. 214. cordicollis Le Conte. 164. melanarius Dejean. 215. Apristus subsidcatus Dejean. 165. carbo Le Conte. 216. glabratus Duftschniid. 166. cupripennis Say. 217. Blechrus pusio Le Conte. 167. excavatus Dejean. 218. americanus Dejean. 168. ferreus Haldeman. 219. Metabletus timidus Haldeman. 169. nutans Say. 220. Phchionus limbata Dejean. 170. striatopunctatus Dejean. 221. Pinacodera platicolUs Say. 171. p^c<^corm'.s Newman. 222. Fabricius. 223. Cymindis elegans Le Conte. 1 72. 8-punctat.us americana Dejean. 178. pladdusSay. 224. pilosa Say. 174. bofjemanni Gyllenhal. 225. neglecta Haldeman. 175. .xruginosus Dejean. 226. 227. Apenes lucidula Dejean. 17(). J i mhat u s f^ay. sinuafa Say. 177. piinrtiforinixfiixy. 228. nicjripennis Dejean 178. (rnnstrlaius Le Conte. 229. Ilelluomorpha bicolor Harris. 179. ruhripes Zimmermann. 230. americanus Le Conte. ISO. - picqieunh Kirby. 231. Brachynus vnmUtix ILirris. 181. Ititidcntiis Le Conte. 232. pnocEWiNas OP THE National museum. BEETLES OF" THE DISTRICT OF COLUMBIA— ULKE. 10 PROCEEDINGS OF TItE NATIONAL MUSEUM LIST OF SPECIES—Continued. 424. CeTcyon nnviculariit Zimniermann. 425. jmheficeni^ Le Conte. 426. Vrnploph'itrnm miinttvm FabriciuH. 427. (niirrlcanum Horn. 428. Pcnidus rostatus Le Conte. 430. 431. 432. 433. 434. 435. 436. 437. 438. 439. 440. 441. 442. 443. 444. 44ri. 440. 447. 448. 449. 450. 451. 452. 453. 454. 455. 456. 457. 458. 459. 460. 461. 462. 463. 464. 465. 466. 467. 468. 469. BKKTLES OF THE DlSTlitCT OF COLVMBtA—VlK i: 11 LIST OF SPECIES—Coutinuw 517. 12 PROCEEDINGS OF THE NATTOXM MUSEUM. LIST OF SPECIES—Continued. 615. BJCETLES OF THE DISTRICT OF COLUMBIA — ULKE. 13 LIST OF SPECIES—Continued. 709. Stemis callosm Erichson. 710. 711. 712. 71.S. 714. 715. 71(5. 717. 718. 719. 720. 721. 722 723. 724. 725. 726. 727. 728. 729. 730. 731. 732. 733. 734. 735. 736. 737. 738. 739. 740. 741. 742. 743. 744. 745. 746. 747. 748. 749. 750. 751. 752. 753. 754. 755. 756. 757. 758. 14 PROCEEDINGS OF THE NATIONAL MUSEUM. LIST OF SPECIES—Continued. 810. BEETLES OF THE DISTRICT OF COLUMBIA— IJLKE. 15 16 PROCEEDINGS OF THE NATIONAL MUSEUM. LIST OF SPECIES—Continued. EROTYLW.E. MURMIDIID.E. 997. LdiKjurid hicolor Fabricius. 1043. Murmidius omlin Beck. 998. nwzardi Latreille. 1044. MyclioceruH depressus Le Conte. 999. angustata Beauvois. 1000. var. trifascialn Say. RHYSSODID.E. 1001. lecontei Crotch. 1045. Rhyssodes exarahix Illi^er. 1002. Acropteroxys gracilis Newman. 1046. Clinidium scidptile Newman. 1003. Euxestus pimdatus Le Conte. 1004. Dacne 4-inacidatn Say. 1005. Megalodacne faseiata Fabricius. CUCUJIIKE. 1006. herofi Say. 1047. Silraniis ,s'Hr/)tr(//(('«.s/.s Liniiicns. 1007. IsrJnjriiK 4-pun(iains Olivier. 1048. bideidatas Fabricius. lOOS. Mi/rolrrtits sfoigiiinipciuiin Say. 1049. planatus Gerniar. 1009. pulrln-a Say. 1050. imbellis Le Conte. 1010. TriloiiKi humrntlix Fabricius. 1051. 1011. var. anllra Horn. adxena Waltl. 1052. 1012. hlguHatii Say. rectus Le Conte. 1053. 1013. mimelica Crotcli. Nauslbius daticornis Kugelann. 1054. repandus 1014. erythrocepliahi Lacordaire. Le Conte. Fabricius. 1015. angidata Say. 1055. Catogenus rufus 1056. Pediacus depressus Herbst. 1016. affinis Lacordaire. 1057. davipes Fabricius. 1017. unicvlor Say. Cucujus 1058. 1018. Ihorncim Say. Ino redusa Le Conte. 1059. Lxmophlcnis bigidUdus Say. 1019. flavicollls Lacordaire. 1060. fasciatus Melslieinier. COL YDIIDH 1061. modeslus Say. 1062. convexidus Le Conte. 1020. Sijnchlla latirollis Le Conte. 1063. aduslus Le Cento. 1021. obscura Horn. 1064. tesUtceus Fabriciuj^. 1022. parvula Guerin. 1065. pundatus Le Conte. 1023. fuliginosa Melsheinier. 1066. angusiulus Le Conte. 1024. gramdata Say. 1067. schwarzi Casey. 1025. CIcoru'x margtnalis Melsheimer. 1068. (diernann Erichson. 1026. DUoiita quadrlguilatn Say. 1069. pusiUus Schimherr. 1027. ijuadricolUs Horn. 1070. L 1 038. Pycnomerus sulcicoUis Le Conte. mer. 1039. Bothrideres geminalus Say. 1079. Henoticus serratus Gyllenhal. 1040. Erotylaihris exaratus Melsheimer. 1080. Cryptophagus^ of/Zar/s Scopuli. 1041. Cerylon castaneum Say. 1081. diffidlis Le Conte. 1042. Philothermus glabriculus Le Conte. 1082. pledrum Casey. lAnd several unnamed species. BEETLES OF THE DISTRICT OF COLUMBIA— ULKE. 17 18 PROCEEDINGS OF THE NATIONAL MUSEUM. BEETLES OF THE DISTRICT OF COLUMBIA— ULKE. 19 LIST OF SPECIES—Continned. 126tj. MclauoplitlKt/iii'i^ hnn/l priuii.^ L 1304. Limidrhn.'i ollnicciis Le Conte. Ccnte. 1305. puncUdus Le Conte. I2G7. aiiit'rlcana ]Man- 1306. nebulosus he Conte. nerheim. 1307. oterLe Conte. 1268. cavicoUiH Manner- 1308. luirochirms Le Conte. heim. 1309. ovatus Le Conte. 1269. gihhosii Herljst. 1270. distiriguenda Co- FARNID.E. moUi. 1310. Fsephenus lecontci. Le Conte. 1271. pldd Le Conte. 1311. Lutroclms luteus Le Conte. 1272. simj)lex Le Conte. 1312. Dryops litliophilus Germar. TROGOSITID.E. 1313. fastigiolas Say. 1314. Elmls 4-noiah(s Say. 127.'>. Nfinosoma parallehun Melsheimer. 1315. fatiiiditus Le Conte. 1274. cylindricum Le Conte. 1316. ovalis Le Conte. 1275. AJindria cylindrica Serville. 1317. nitidulun Le Conte. 1276. teres Melsheimer. 1318. latiusculus Le Conte. 1277. Trogm'da rirescens Fabricius. 1319. pusiUvs Le Conte. 1278. Toiehrioides mauritatiim Linnams. 1320. Sk'nelmi.s linearis Zimmerman. 1279. cortkrdis Melsheimer. 1321. sinnatvs Le Conte. 1280. 7iaHa Melsheimer. 1322. crenalns Say. 1281. marginata Beauvois. 1323. quadrlin MONOTOMID.E. 13.30. Eurypogon viger Melslieimer. 1331. ndifoDilrn.. Horn. 1291. Mouotoma piclpes Herbst. 1332. (/doiildiiyj- Iririltix ( Jermar. 1292. americana Anbe. 133:;. .\i,rlnil 1301. Xo^udcudron ii nlcolor Say. 1344. thorarini (lurrin. 1302. /li/rrJiiis m n ri ii ns Fa\)ric\us. 1345. Sryrhs Iddalis (im'rin. 1303. Siiiic(ihii>t ^And some undftermiucd species, 20 BEETLES OF THE DISTRICT OF COLUMBIA— ULKE. 21 n PROCEEDINGS OF THE NATIONA J. MUSEUM. LIST OF SPECIES— ('(intimied. 1545. Brachys lerosa Melsheimer. 1592. Ti'lt'pJinrns fraxini Say. 1546. ivrug'mom Gory. 1593. earolinus Fabricius. 1547. Pitchiiffceluii purpureus Say. 1594. lineola Fabricius. 1548. Iwvigatus Say. 1595. costipeniils Le Conte. 1596. rechis Melsheimer. LAMPYRW.E. 1597. scitulus Say. 1598. pusiUus Le Conte. 1549. CaJopterdii tcrminale Say. 1599. longufus Le Conte. 1550. retiailatum Fabriciu8. 1600. rotundicoUis Say. 1551. Celetes basalis Le Conte. 1601. tuberculaius Le Conte. 1552. Cienia dimkUata Fabricius. 1602. bilineatus Say. 15511 Erox tlioracicus Randall. 1603. marginellus Le Conte. 1554. anrnni Herl>8t. 1604. Polrill ills Jaticornis Say. 1555. iiiiiikJks Way. 1605. 'fri/plii riis hitipcunix German 1556. Keulfdilis Say. 1606. Midthiiiii.s nrripitidis Le Conte. 1557. triliveatits JVIelsheinier. 1607. M(dtliud, s .spado Le Conte. 1558. Plati-rox flmldmUi Conte. 1608. mncaniK Le Conte. 1559. tiiodestus Say. 1609. rectus Le Conte. 1560. ravaUcnlntit.'i Say. 1610. arcifer Le Conte. 1561. lldor Newman. 1611. mptiosus Le Conte. 1562. Horulis Melsheimer. 1612. /KT/-n//».v Le Cc.ntc. 1563. (hloclironiK.H perfacetus Say. 1564. Liiciilold (lira Fabricius. MALACHID.E. 1565. pitiirtutnl^QCowie. 1566. E/li/c]ini(i curnixca Linnanis. 1613. CoUops tricolor Say. 1567. ]';imp!/ 1570. I'}jr(icloiiii"iui angtdata Say. 1617. riftdfu.sHay. 1571. lucifera Melsheimer. 1618. Cliaiocalus .sctosus Le Conte. 1572. Phot'iiiutt conHanguineuH Le Conte. 1619. Anthocomus flavilabris Say. 1573. pi/ralis Linnseus. 1620. Pseudebceus apicalis Say. ] 574. seintillans Say. 1621. oblitus Le Conte. 1575. Photiiria pennmjlvanica De Geer. 1622. bicolor Le Conte. 1576. Phengodi's.^ 1623. .ittalus trnniiudis Erichson. 1577. Tytthony.v eri/iJirocephaht Fabricius. 1624. granularity Erichson. 1578. OmetJirs margiiinltis Le Conte. 1625. mondus Le Conte. 1579. ('}t(iidioi/iialliH!< prnnsylvaniam De 1626. pallifroiis Motschulsky. Geer. 1627. 7)ielanoj)trrus Erichson. 1580. marginatum Fabri- 1628. otiosus Say. cius. 1629. circumscriptus Say. 1581. Podahrus tricostatus Say. 1630. scincetus Say. 1582. rugosidtis Le Conte. 1583. frater Le Conte. MELYRID.E. 1584. basilar is Say. 1631. Alymeris cribrata Le Conte. 1585. tomentosus Say. 1586. brwniirolHs Le Conte. CLERIILE. 1587. Silis percomis Say. 1588. spathulata Le Conte. 1632. Elasmocerus terminatus Say. 1589. Ditemnus bidentatas Sajf. 1633. Cyinatodera brunnea Melsheimer. 1590. Telephorus e.rcavntus Le Conte. 1634. inorimta Say. 1591. vIMs Le Conte. 1635. undidata Say. ' Unknown species, female. BEETLES OF THE DISTRICT OF COLUMBIA— ULKE. 28 LIST OF SPECIES—Continued. 1(13(>. I 24 PROCEEDINaS OF THE NATIONAL MVSEVM. LIST OF SPECIES—C.iitimie. niJETLKS OF THE DLSTPJCT OF COLVMBIA—VLKK 26 PROCEEDINGS OF THE NATIOXAL MVSEUM BEETLES OF THE DISTRICT OF COLUMBIA— VLKE. 27 28 PROCEEDING!^ OF THE NATIONAL MUSEUM. LIST OF SPECIES—Continued. 2110. BEETLES OF THE DISTRICT OF COLUMBIA— ULKE. 29 30 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. XXV. NO. 1275. BEETLES OF THE DISTRICT OF COLUMBIA — ULKE. 31 LIST OF" SPECIES—Continued. 2402. Clirnmatia amaena iSay. 2445. Salpingm virescens Le Conte. 2403. Gipiiorliroa fuUginvsa Melsheiiner. 2446. Rhinosimus viridiameus Randall. 2404. Androdtinia fuseipes Melsheimer. 2405. fenioraliK Olivier. (EDEMERID.E. LAGRIIDJ^. 2447. Mierotonus sericans Le Conte. 2448. Nacerdes mdanura Linnaais. 2406. Arthromacra irnea Say. 2449. Oxacis ihoracica Fabricius. 2407. Statira respZenrfen.? 'Melsheimer. 2450. tseniata Le Conte. 2408. gagatina Melsheimer. 2451. Probosca pleuralis Le Conte. MONOMMIDJ^:. 2452. Asclera ruficoUis Say. 2453. pundicollis Say. 2409. IFi/porhagus pimcUilatuH Thomson. MELANDRYID.E. MORDELLID.E. 2454. 2410. Tetmtonia truncorurn Le Conte. 2411. fessellata Melsheimer. 2412. Usenus humeralis Kirby. 2413. Penthe obliquata Fabricius. 2414. pimdia Fabricius. 2415. Sjntchrua punctata Newman. 2416. Eastrophus hicolor Fabricius. 2417. repandm Horn. 2418. fomrnfoxii^: Say. 2419. Ifolo-struphiis f,i/asriunis Say. 2420. Orrhcgla caxtanm .Mflsheimer. 2421. gracilis Melsheimer. 2422. Hallomenus scapularis Melsheimer. 2423. debilis Le Conte. 2424. Microscapha clavicornis Le Conte. 2425. Mekmdrya striata Say. 2426. Carebara longula Le Conte. 2427. Sjvlotvs 4-piixlidnftns Melsheimer. 2428. Enrhi.hssn-ici Haldeman. 2429. Mystdxi,! .si mn hilar Newman. 2430. Ilypulus lituratus Le Conte. 2431. concolor Le Conte. 2432. vaudoueri Mulsant. 2433. Si/mpJiora flavirollis Haldeman. 2434. rugosa Haldeman. 24;:]5. Anisoji/a g/aiicida Le Conte. 24:;6. Scraptta sericea ]\Ielsiieimer. 24.';7. Allopoda lutea Haldeman. 2i;;8. Canifa plagiata Melsheimer. 2439. pusi/la Haldeman. 2440. jHdlipes Melsheimer. 2441. Nothiis rarians Le Conte. 2442. Mycterus scaber Haldeman. PYTJIID.E. . 2443. Bows unirolor !~ 2444. Pytho americam Kirl)v. 32 PRO( 'EEDINdS OF THE NA TIONAL MUSEUM. BEETLES OF THE DISTRICT OF COLUMBIA— ULKE. 33 LIST OF SPECIESCIES- RIIINOMA CERID.E. 2580. Rhinomacer pilosus Le Conte. 2581. ekmgntux Le Conte. RHYNCHITID.E. 2582. Auletes cassandrw Le Conte. 2583. Ettgnamptus angustaius Herbst. 2584. coUaris Fabricius. 2585. Rhynchites hirtus Fabriciu8. 2586. .rneM.s Boheman. 2587. !V)- ATTELABID.E. 2589. Attelabm analis Illiger. 2590. nigrlpes Le Conte. 2591. hipiistulatus Fabricius. TIORII 1 'NCHID. E. 2592. Epicserus imbrieatv.s Say. 2593. Hormorus undulatus Uhler. 2594. Panscopus erinaceus Say. 2595. Phyxelis rigidiis Say. 2596. Otiorhynchus ovatus Linnteus. 2597. sulcatus Faliricius. 2598. Cercopcus chrysorhccufi Say. 2599. Tanymecus confertus Gyllenhal. 2600. Pandeletejus kilaris Herbst. 2601. Brachystylus acutus Say. 2602. Aramigus fulleri Horn. 2603. Aphrastus tseniatus Gyllenhal. CURCULIONIDyE. 2604. Sitonesfiavescens Marsham. 2605. hispididvs Germar. 2606. Ilhyeerus norehoraceiuh Forster. 2607. Apion impeditum Fall. 2608. impiincthtrldtni,, Smith. 2609. eorarelhuii Fall. 2610. ntri]>c^ Smith. 2611. finttuiiniii Fall. 2612. )iielini LIST OF SPECIES—Continued. 2671. BEETLES OF THE DISTRICT OF COLUMBIA— ULKE. 35 36 PROCEEDINGS OF THE NATIONAL MVSEVM. LIST OF SPECIES—Continued. CALANDRID.E. 2916. Cryphalus rigldus I,e Conte. 2917. (Juicotrypes ditctyllperda Fabricius. 2871. Ilhodobienus IS'punctntua Illiger. 291S. Hypothenemns ernditits Westwood. 2872. SphcnnphoruH ochreim Le ('onto. 2919. dissi, lulls Zimmer- 2873. innijiinlis Say. mann. 2874. pertinu.v Olivier. 2920. Pltyophthorns nilnnflsslnnis Zinnner- 2875. cariosus Olivier. 2876. sculptilis Uhler. 2921. 2877. zess Walsh. 2878. melanocephaln.y Fabri- ciu8. 2879. i,l«ndns Say. 2880. pariudn.s Gylleuluil. 2881. germar'i Horn. 2882. (Mlandr(( uri/ziv Linnfeus. 2883. (jniiHifiii Linnaeus. 2884. Bryophthoru.s cortiralis Say. 2885. Himat'mm crmm Le Conte. 2886. conicum Le Conte. 2887. Cossoiiiix liiiprL>t!.' 2889. I'ld SCOLYTID.i:. 2897. ScolytuH quadrlspinosu.s Say. 2898. muticus Say. 2899. rugidosus Ratzeburg. 2900. Chramesus icorix Le Conte. 2901. Pldd'otrihus liminaris Harris. 2902. frontalis Fabricius. 2903. Hijh-xhiHx fasckduH Le Conte. 2904. undcatus Say. 2905. upucidm Le Conte. 2906. Oneslmus strigicollis Le Conte. 2907. Phloeosinus dentatus Say. 2908. CarphoboruH bifurcus Zirnmermann. 2909. Dendroctonus terebrani^ Olivier. 2910. frontalis Zirnmer- mann. 2911. Ilylastes porculus Erichson. 2912. cavernosus Zirnmermann. 2913. temiis Zirnmermann. 2914. Hylurgops pinife.v Fitch. 2915. Crypturgus alulaccus Schwarz. BEETLES OF THE DISTRICT OF COLVMr.IA—VLK E. LIST OF SPECIES—Continued. ANTHRIBID.E. 2964. Aiitlirlhiis ronniliia Say. 2965. Cndcp'iris IkikiIiis Fabricius. 2954. Eiir;/iniirterf<(sci(ttii.i.'< Olivier. 29(>7. Hrdcliiilari^Ki^ allernatun Say. 2956. rertiis Le Cunte. 2968. Hmhdliis Say. 2957. Hormlscus saltator Le Conte. 2969. lomenloxiis Say. 295S. Tu-ofrnpis pusilttis Le Conte. 2970. rur legal i(x Say. 2959. fasciaiiis Le Cont(\ 2971. Anthrlhnlus rotnndalns Le Conte. 29()0. Eii} 296;^. iiiirtns Le Conte. 2975. En.revns pimctatns Le Conte. ECOLOGICAL NOTES. CICINDELIDyK. E/dplirii.^ riparius and ruxrurius, on mud l)anks along streams. Tetracha rirginica, not eoiuiuon; .-^inule Xdtidpliilax. The species are common in specimens have been found at various dry woods under old leaves. plaees. Xrhria pdUipe>i, common along water CicimJehi rugifrons, on the hills near Ben- courses. nings Station, not rare many years ago, Pasimackus depresi^us, rather common but not found again; scxguftatd, com- under stones and logs in dry places; UKin in tlie woods in early s]iring; /»"/•- sKhhrfis, the same, but rare. pnrca, i-are; nil/jariK and rcpandd, com- Srarilfs xiihtfrrdnniK, very common every- mon everywhere on ujicn sandy places, wlici-e under stones in the ground. especially near water; liiiiicnlli.<< and I>)/srliiriiis (jldhiildxHx, common under margiiiata, on sand ))ank8 of the lower leaves in rather wet places; hxmorrhoid- Potomac, where the water begins to be dlh, near pools of stagnant water; l)rackish; jjhhc^h/o/^, our commonest npJusricollis, along the Potomac; pmnllus species, abundant in the streets and and pilosus, the same. attracted by electric lights; rnfiventris, Clivina punctigera, only a few specimens not rare in the fall, across the Free were found at electric lights; planicollis, Bridge, also found at Bladensburg rare; all the other species are common Potomac and Eastern Branch, CARABID/E. along the under stones in moist places. Omophrdii lahidtinn, hitherto only found Axpiilnf/liissn snliiinipdata, along the Poto- at electric lights in June; diiievlcduntn, mac, net cotuuiun, but more abundantly common along the Potomac and Kast- found at electric lights. ern Branch. Sclii: former years; ridw »."-•, found only once fiat stones, not uncommon at electric near Chain Bridge. lights. all Cardhus. All species are found in woods Bemhidiuin pnnrtdtoxtriaium . This and at various places; limbatn,^, very com- the other species occur along the water mon; stjlvosus, rather rare. courses, especially on sandy and pebbly Calosoma. All species are extremely places. abundant at electric lights, but not Anilbts fortix, our only blind Carabid, commonly found elsewhere. found under deeply interred stones. 38 PROCEEDINGS OF THE NATIONAL MUSEUM. ECOLOGICAL NOTES^Continned. Tachys. All the species occur abundantly Thalpins dorsaVm, a single specimen at along streams, except nanus and favi- electric light. cauda, which are common under bark Tctragonoderua fasciatus, connnon on dry of decaying logs. sand banks along streams. PericompsHS ephippiahis. along the shore Ncinotarsiis elegaiix, very rare; once found of the Potomac. at High Island. Pntrnhiift lonr/ioorriis, common with Ncf>rl Mij(i>tc(>r(tchnix, two specimens found some iiKiri/iini'oins, /i/nirillc'i, j)i.' Pleasant. Ciifilodcrii (ti'i'dld, eoinnion on stuni])S and Pterosiichm. The species are more or less logs. common in the woods. Among the Droinlus piceiis, under imrk, common. less connnon species are ebenufi, rjillgm- Apristiis sabsidcdiiix, connnon on sand dits, rotiiudaius, appro.rimalus, and streams, etc. ; only rm.s'.s/.s'p/jK/ and eu- Plochinriv!^ tInildKx, rare, beaten from preolcita are less frequent. trees. Loxmidnifi, common on sw\mi\v jilaces Pinarudera Jhiihata, connnon; j)lnlyrnl/is, across the Free Bridge. rather rare. Diplodiiht IftticolUs, not very common Cyiinndis pilom and neglecUi, very I'om- along the river. mon, under stones in drv localities; Dicrhta, not rare under stones and logs. (imci'icana, less common; elegam, very Badisier notatus and reflexus common in rare. moist places under old leaven; fidi'ipcx, Ajjciic.s Incidnhi, not common; siiiixda, very rare; pulcheUufi and maculatnn more frequent. found only at electric lights; only two Ilellnomorplni bicolnr and nif/ripciniix, both specimens of the latter have been rare. found. Brachynxx. All species of this genus are C(dat}uii<, very common ever}' where. more or less common, and their si)ecitic Platynus caudalus, very rare in moist value is by no means established. places in spring; picticornis, only one Chliniins b'iK:uf«r/ix and prashms are on specimen found at electric light; shm- river l)anks; niger sometimes at electric atus, not rare under loose bark of trees; lights; the other species are common the others are all more or less common everywhere. under old rubbish along the streams. Brachylobiify lilhopJuhis, like ('lihniins j,m- Olistlwpus parmatus, connnon; micaiis, sinns. rare. Lachnocrepit! pardllt'/iis. rather rare in Perigona, both species founxl once gre- swampy places. gariously in moist places. Anatrirhis iinniitd, only a single sj)eci- Atranus pubescens, very common under men tound. old leaves in moist grounds. Oode.'< aiii(ir(>i(by, found ui very wet places, Leptotrachelns dorsali-t, not connnon. not common; (imericannx, the same, Casnonia pennsylvantca, extremely com- very common. mon; ludoviciana, apparently not rare Evoleneaexarittiix, several specimens found. in swamps near Eastern Branch. very rare. Oaleriiajanus, very lommon, bicolor, less Geopinus incrassalus, not rare, but found common. by imndreds at electric lights. BEETLES OF THE DISTRICT OF COLUMBIA— ULK'E. 39 ECOLOGICAL NOTES—(Vmtinnod. (iiKjiislata, very connnon m juiols Cmtacanfhu^ the river. (; Ill-ill U.S. Hke Dineutes. Aiitphmla inter.«iill Haliplm Iriopsis, common in ponds of dant. stagnant water; pundaius, rare; ruficol- HydrophUm Irimiguhirix, very al)un(lant lights; also <,ntln,, but less lis, one specimen found. at electric Cnemidotiis i^mph'j- and IJ pnnclatus, in abundant. common at pools of stagnant water. Tropisternus and llydrocliarix, electric lights. DYTISCID.E. BeroKiix peregrinn.'i and xtriah(><, very com- Canthydrus and Hydrucalhvs. abundant in mon; c.ilginis, rare. ayilis, extremely abundant stagnant water. Larcoliinx Laccophilui<, common in pools and Howing everywhere. connnon, except jirrplcrns. water. Philhydrus, all connnon. Hydrovatus and Dt'sinapaclirid, aliumh^nt Helochares iu(icnH<'oIlix, Ilelocombus bijidns, rare. in stagnant water. Cyudiiodyki _tiriibri ( ECOLOGICAL NOTES— '..ntimied. Hiidrohlua trRfirlnhix, very rare; tlieotliers Jviodcs. \\] live in rotten wood, ])er- common. meatcd with fungus growth. Creniphilux subcuprex.^, very abundant in (''jiinxd, beaten fromgras'^ on warm sum- running water. mer evenings, common. Plumonotum exstriaium, in swamps. h(jplat groshms, rather rai-e. NecrophnruK itmrricaniis, on dead snakes; Cholerus zimmrriiKDiiii, rather rare. also at electric lights; the others are Cpphennimii rar/iorasimi, not rare found on various dead animals. under old leaves. SUpha surinameii.s'i% very abundant, espe- cially at electric lights; this and the PSELAPHID.E. others are found on putrid matters; common. Adranes lecuntei, very rare, with Laxins Pinudi/te.s cryptojdiar/oidrs, blind, under daviger. decayed leaves in rather moist places. Ceophyllui< monilis, rare, under bark of This species, in company with Eidyjildiix rotten trees. simllis and Aiiil/us forth, ])oth l)Iind, is f'edius ziegleri, common in the hills of frequently found in the mountains of Formica Integra and e.rsedoide.^; api- Virginia. nosvs, under loose bark of old trees. Cholera. All the species are found under Tmesiphorus, like Ceojtliyhis. old leaves, in fungi, and on dead Chennium monilicoDn', very rare, with animals. Pnenolepis parrvla. Prionochxla opacd, like Clio/em. (tenistes, all the species are al)undant Ptorimphagm ulkci, only two specimens under old leaves. were found under decayed leaves, Tyru.'i hiinieralis, rare, under l)ark of old across the Free Bridge; parasitvK, in trees. the nests of Formica Integra. P.^elaplius erichsomi, one si)ecimen under Colon. Of paradoxum, hvhhardi, thorac- a stone near Woodley Park. icum, and asperoluni, oidy single si)eci^ Tydim loiigipfdpu.^ and iiii)iur, both fre- mens have been found. quently found underold leaves in rather Anisoioma obsoleUi, not rare; of idlernaUi tlry places. and (immilu only single specimens; Eidridiitr.^ ziiiniieriiunriil, rare. species of this genus are to be found Ni.wxis tomeidom, rare. either under old leaves or in beating Di'carthron stigmomm with Aphaenogaater meadows at sunset in early summer. Ireali; exfiedum, one specimen found; Colenh impundnUi, very common in fungi the rest by sifting old leaves and sweep- and under old leaves. ing meadow grass at sunset. BEETLES OF THE DISTRICT OF COLUMBIA— I /.KE. 41 ECOLOGICAL NOTES—Contimif. Brj/axiii, most all of the species are found and a great number of species of the by beating grassy places toward sunset Aleocharime remain as yet unrecognized in the early part of June; valida, two and undescril)ed. specimens, near Free Bridge; belfragei, Acylopliorusflavlci ill i.s -Aiu] /;;v>/(//.s', conimoii two s])eci mens; (/ctiDiiifcr, one specimen. under debris near water; densu.'f, very Jr//(;;//((.s///f;/<;ro///x, exceedingly abundant rare. under old leaves iti moist places. Ilefernfliops pusio, not rare. Butrims ioiiif, rare, with Lasius alienu)^; (Jnedi us ferox, rather rare; the others are mo7ii Trimium, sifted from decayed roots in the Cre.ophilus r///o.sv(.s-, like the preceding. grounds, also Iteaten from grasses at Staphylinns vnlpinns. niidcr old leaves, sunset. coiiimoii; ii/iiciilii.'iiis, in decaying fungi, RIte.ridlus canaliciild/KS, one specimen. dung; fosaalitr, decaying fungi; eiola- Rhexius Insculptitx, taken a])undantly by ceus, very abundant in old fungi; comes, sweeping. exalnns, both rare under dung; pnvlon- Thesium carifrons, two specimens. gus and viridans, each one specimen. Trlmioplectus arcnatus, one specimen. Ocypus ater, rare under stones. Euplectus, generally found in rotten wood. Belonachus foDiiosuft, very abundant on EatgpJilus similis, very common with sap exuding from wounded trees. Piiiodi/fi's cniptophagoides. TynipdiiopJiin-iis pujicticollis, very rare. I'hiliinthiis politns, rare; umhratilis, hrfidus, STAPH YLINIDyE. iiKjuietus, each one specimen; nsper, not rare in the stems of toadstools; Aleochar(( lata, common under carcasses; hepaticus, very abundant under dry the others very common under dung. leaves; umhriuus, under old leaves near Orgpoda sagiUata, excessively common; the river; most of the other species are most of the species are common under more or less abundant under old dung dung; several undescribed species. or decaying lunui. Xenodusa cava, found in the nests of Actobijis cinerascens, untier debris along ( 'ainponotus pennsylvan icut;. the river, common; also sohrinus and Myrmedonia rudis, very rare; srJurarzi, in ppt'deroides, very abundant; of procer- the nests of Lasius alimus. idus, parrus, feriiii)i. Hoplandrla lateralis, very common under eepli ECOLOGICAL NOTES—Continued. EAinsfliclnsaniericdiiKx, under moist leaves. Me(jtil()i»^ cirldtus, very rare, on fungi grow- Edaphus nitidus, under moldy leaves. ing under logs. Stictocranius ptincticeps, under old leaves, O.rjiporus, all the s))ecies live exclusively but not common. in toadstools. Crii/iloliiinii hicolor, ji(dlipes, caroluinm, (Morivs Iniipes, not rare, burnming in the (•(.iiniKiu in swampy places near the ground under stones. liver; Ixnlin iird\u\crihratn.))i, ratherrare; HoInlnicJinx hrricmuht, rather rare. xrr/x'iitiinnn and Ihtriconic, very rare. Il/cdins. These si)ecies live on mud or Laihnthi II III, liW very common under old sand banks near the river. leaves, except ariiKitinn, ximiU' ami niii- I'/dtj/sli'lJiiis miier'icitinix, exceedingly com- hii/iiinn. mon in dung. Srd/t.Tiis, like Lalhrohiviii, connnon. O.nitcbix. These species, with the excep- StlliriiK trlsfts and hiariiKitnx, rare; dnita- turn of plaruaimtn, which is myrme- his, connnon in fungi. cophilous,liveeitherindnngordecaying Lilliorliin-i.^ ochracea, rather common. vegetation. Aderoc}iarlf! rorticina , very common under TriKjujilihrm, all live on nuid banks (^r in moist old leaves. decaying leaves in nuiddy swamps. Traelq/Kerfus confiueris, imder moist bark Ajtocelln.'^ spharicollis, very common under of old trees, abundant. stones, everywhere. I'lt'dcni.^ Uftorariiis, very abundant every- Aiiryrophorus, found on stones in a small where. creek near Cabin John Bridge. Simiiis, like Pivderm. Thinohiiis fimhriatiis, on gravel banks near Erhia.stcr {Leptogenius), an apparently the Eastern Branch. undescribed species, not rare under old Gendromiem emus and Lestem pallipes, leaves. common along water courses. Stilicopsis 7n)>nstr()>fa, connnon; jxirado.ni, Aridotn subcarinata, not rare under leaves very rare. in the fall. Pinophilus latipes, not rare under stones; Arjiedium schvurzi, very abundant under piripes, one specimen. old leaves. Piilaniiniis ti'stacevs, common; coiitnrfus, Ohiphrmii, like Arpidiitui. rare. lloindHnin JiiiiiurusHni and rrjxiiidmii, 3//c/r>c//p^w.< /o'/ffcc/f.x', one specimen among connnon under old leaves; dijf'iisinii, in termites. fungi; frnclinii, under moist bark; Tachinus memnonius, hiridus, Jiarldiis, fun- liduKitniii, on dry leaves of felled trees. briatus, pallipes, in fungi; finiiipenn'n^, Aiithohhnii ronre.rum, very abundant on (•ommon in dung; repjandus, iiinhatits, flowers in early spring. and m moist old bark; /,7'()/.s, under old leaves. Lisplims cvif/inis, one specimen under Conosomn. All the species of this genus bark. live under old leaves or on fungi grow- (IhjptiniKi ro.'^talr, in decaying wood, very ing on dead trees. connnon. Bolitobvm, more or less common in Trign picijx'iniis, under bark of various fungi. trees. Brijuporiix riifcsiriis, very abundant imder ?^/<'iisis pallidum, found once in great num- old leaves; flmupes, two specimens. bers under the bark of an old stump. Myceloponis, all species occur under old Siagonium americanum, one specimen. leaves. Micropeplus cribrains, one specimen. 1275. BEETLES OF THE DTSTRICT OF COUMIUA — VLKE. 48 ECOLOGICAL NOTES—C'ontimu'd. TmCHOPTERY(Tll)iE. CoccineUd' dlliuix, on i)ine trees i early spring, on ^villows in sunmier: tl otlier Nossidiiirn americdimm, found once very species are connnon. abundantly in a iinich decayed old Adnlid hipiiiicfiild, aliundant in on parks 8tuni]>. and gardens. I '/Hi mil and I'hiild'niin. Species of tliese Hdrmoiiid jilctd, rare, on pine trees. •renei'a occur under old leaves in moist Ui/aid piil/dld^ exclusively on pine trees. places. Amdis n<;//dld, very abundant .very- ]/ninilodex pnrddoxiix, strictly niyrinecoph- where. ilous, among Lasiax ckwiger. Psyllobora ..'0-iiidctddld^ very conmion on I'teryx batteata, in decaying wood. low vegetation. J'tlneUodex Iccnntel, under old leaves. f'JiilucoruK bindncrnx, exceedingly abun- TricJiopterijx. These species are more or dant. less abundant in all sorts of decayed Exoc}iomdf< 3-pU! PHALACRID.E. ENDOMYCHID^. I'hnlacrvs, OlUmif!, Litorlirxa. All our Alexia lobdtd, a single specimen, l^halacridie occur on various plants, as Aimmorphus spec? known in our collec- as under decaying leaves tions as A. pusilluti Zimmermann Mss. Si/whintes ullri and mino7-, live mold CORYLOPHID.E. on growing within red rotten logs. Sdcium, our species live under bark of }[yvct;vd IiirUt, on molds in dark places. various trees; can also be beaten fr-om Bliariis iniiroliir, very abundant under ilead branches. old ])ark. Arthwlips, Sericoderm, under old leaves. Liestes spec? very rare, at the t)ase of Oithoperus glaber, very abundant on grow- trees. ing vegetation. Phyrnaphura pidchcJla , under old bark. Lycoperdinaferrugmea, in a small species COCCTNELLID^. of Lycoperdon. Aiiiiidsticta xixidtd, one specimen; more Aphorista vittatd, on molds on logs, com- abnndant near salt-water regions. mon. J/i?(/(7te )«oci(/f//r/, a very abundant species, Mycetina testncm, on fungi grow'ing on gregariously under bark and stones in roots and logs; prrpulchra, rare, on cold weather. mold under ])ark. Ilippodamia IS-pimctdta, one specimen; Sli'iiol ECOLOGICAL NOTES—Continued. EnrJonnich >i.f hlgiittdliix. lonietiiries in great RHYSSODID^. numbers under loon l)ark. Rhyssodes and Clinidium, both genera EROTYLID.E. found under bark of decayed wood. L((iianiis and /iiilchi'r, in of deci uous trees. Dysmerus basalis, in l>ranches of J!fins Cicones marginalis, one specimen. toxicodendron, common at Bladensburg. Ditoma. The species are found under Brontes dubius, under l^ark, abundant; bark of all sorts of trees. debilis, one specimen. Coxelus gutfulafiis, not rare on dead Telephanus velox, under old leaves, one of branches. our commonest insects. Lasconotus referendarius, under pine l)ark CRYPTOPHAGID.E. in the galleries of Scolytids. Aulonium and Colydium, the species of Telrnatophibis and Lohcrus, ])y sweeping both genera are found under bark and humid meadows. in twigs of coniferous and deciduous Tomarits jndrlii'lhis, under old leaves, trees. chips, etc., very common. Aglenusbrunneiis, introduced from p]urope; Antheropliugus ochraceus, rare, on flowers, one specimen found by Mr. Pergande. inquilinous in nests of Botidms. Oxylsenms americanus, rare. Henoticus serratus, the specimens found Penthelispa and Pycnomerux, under moist here may belong to a distinct species, bark of dead pines. rare. ButJirideres gerninatus, very common under Cryptophagvs. Six species occur in the dry oak bark. District, which have not yet l)een Erotylathris exaratus, very rare. studied. Cerylon castaneum, under all sorts of bark, Cfenoscelis. There are seven species fi nmd very abundant. here, which can not be nametl at pres- PhUothermns glahriculus, very common in ent; they occur under old leaves. decayed wood. Ato>nariaepMpplata,distmcla,andochracea. MURMIDIID^. Eight species have been found, among which only these three are named at Mxnnidiiix oralis, introduced, in old stored l)re.sent. rice. Ephistciiiu.'^ apicidis, very common under Mychocernx de/iirssiis, under moldy bark. old leaves and chijjs. BEETLES QF THE DISTRICT OF COLUMBIA— ULKE. 45 ECOLOGICAL NOTES—Continued. MYCETOPIIACrlD.E. Tribaliis atiierlcanus, yuA raiv, under bark and in decaying wood. Mi/ci'topJiai/itfi jiitiicldtiix and fle.vnosui^, Epierus, like Tribalas. very common in various fungi; obso- HeLvrins briinnipemm, in nests of Formica /etuf<, once found in abundance in a fusca. white fungus; pluripunctatus, in fungi EcJdnodes setiger, only one specimen found. under moldy bark; bipu-^tulatus, in old Onthophilus alternatus, under fungus or tlour barrels, also on moldy bark; pini, vegetable debris. under old pine l»ark; mehheimeri, one DendropliUns punctulatux, not rare under siieeimen. bark of old trees. Lil scneomlcans is very rare and seems to Thalycra eoncolor, one specimen. have not been found elsewhere. I'oradhis helroJii.'^, in fji/eoperdoi), very Tnhalister marginellm, very rare; only a common. few specimens have been caught, flying Oxymeiiius, in fungi. about in early spring. Amphicrossus cUiaius, on sap of trees. 46 PROCEEDINGS OF THE XATTOyAL .VUSEU}f. ECOLOGICAL NOTES—C'ontinuea. Pallodi's jxtllidiis, in UyA(hU)oh,ii\mud-ant. Drijojix, under stoue? and dobris in run- Ci/chntiiinn (i(Iiit Pltyophagus cephalotes, one specimen on a like Elm is. fence, south of the Treasury. Rliizopliagnx, on mold under bark. HETEROCERID.E. LATHRIDII1).E. Hi'lerocerus. All the sjiecies occur in mud and sand banks. Holop(tr(i})ierux hinzi'i, one specimen found under l)ark of an old hickory DASCYLLID.E. tree. Eiirypagoii niger and californicug, on LatltritJiiis liratiis, very conunon under bushes. debris. Enicmus and Cuninumus, found on molds. Odonlonyx and Anclujlavsus, in swampy places. Corticarki and Melanophthalmus, found l)y Ptiloductyla xerricoUis, on bushes and low sifting and beating. plants. TROGOSITID.E. Eucinetus, sifted from moldy leaves. Ectopria nervosa, on plants. Nemosoma jxirullelum and ciilimlrinnn, Prionocyphon, Helodes, Sci/rtcs, andCyplton. jjarasitic on St-olytids. All the species of these genera live on Alindria cjilindrica and teres, on old plants in swampy places. branches. Trogosita vireHcens, very conunon under RHIPICERID.E. various trees. Zenoa picea, uniler bark of trees. Tenebrioides mauritanica, in flour and feed Sandalus, occasionally found. stores; the other species found under bark of trees. ELATERID.E. Grynocltaris quadriUneata, rare, on tree fungi. Melasis pectinicoi-nis, found boring in dead Lgcoptus villosus, in decaying wood. oak. TJiymalus fulgidxis, on tree fungi. Tharops ntficornis, boring in felled trees. Dcltometopus, on bushes, common. MOXOTOMID^. Dro)n,rolus, beating from dead branches. Fornax, like Dromxolus, but rare. Monolonia, under decaying weeds. Adelothyreus dejeanii, one specimen. Ifeupcrnlnnrvx, Eurujis, and Badridlum, Mkrorhagus, all on dead branches. under bark of trees. Hypoadus, like Microrhagus. BYRRHID.E. Adeloccra, all under loose bark. MerisUins scohunda, one specimen in a Xnmdcndnm wiicolor, sap of trees. sandy place near Rock Creek. Byrrhus murinus, in moss. Chalcolepidius vlridipiUs, on fences and Syncalypta sirigosa, sifted from moss. trees. Limnidius, along the edge of the river. Alaus oculatus, under bark of various trees; myops, under bark of pine trees. PARNID^. Hemirhipus fascicularis, on fences and Psephcnus leconte.i, under stones in run- trees. ning water. Cardiopliorus conrexus and gagates, beat- Lntrodiiis liileiis, two specimens swept ing from trees and bushes; cardisce, on along the river. sandy places. BEETLES OF THE DISTRICT OF COLUMBIA— ULKE. 47 ECOLOGICAL NOTES—(Vmtinued. Horislonotiis cKrldlns, on busheis and trees, Afieiiodcx ((((ir)iiK, rare. common. Afiiinodera ornaia andcnlla on flowers. Estlu'snpus daricoUls, one specimen. PlasiDKi gibbicoUis, on black locust. Crypiohiipnus choris, on dry sand bankn; Madogerdus, on oaks. melsheimeri and perple.rns, on gravel Enpristocerus cogitans, on elder ])ushes. banks; the others swept in meadows. Agrilus ruficoUis, on different kinds of Anehastus rufns, very rare. Rubus; otiosiis, on oak and hickory; Monocrepidiutt, on meadows and bushes; arcucdus, on hazel ; bilineaius, on chest- mirllus and belliis very common under nut and honey locust; polUus, on oak; stones in early spring. egeniis, on black locust; obsoletns and Dicrepidiiis and Iscliiodouln.'^, both very (/rniudaius are rare. rare, on bushes. RluvliDticells ienuis, on oaks. E Inter. All the species are found under Taplirorcnix gr<(c!lix, very common on bark and by beating dead branches. plants in swami)y meadows. Drasterhis elegans and amabilix, nio-tly Brdchijs, all on oak bushes. under stones, very abundant. Paclnjscelus purpureus. The larva mines Megapeidhes, on bushes. the leaves of Lespedczu. Liidius, under bark. Agriotefi and Dolopius, on bushes. LAMPYRID.E. Glyphonyx, on bushes, very common. Melanotus, Limonius, Athous, Sericosomus, Calopieron terminale and reltcnlntwn, both Corymbites, Hemicrepidius, and Mela- common. nactes are all more or less frequent in Celeles basalis, not connnon. old stumps, under bark and stones, or Cpcnia dirnidiata, rare. beaten from various bushes; Lepio- Eros, Plateros, and Calorliroiiins, on flow- schema hicolor is very rare; Sericosomus ers and bushes. viridanus, under chips and stones in Lucidota, like the preceding. early spring; Melanactes reichei, only EUychnia comtsca, very connnon about two specimens. trees and bushes. Perothops mucida, from old beech trees. Pyropyga and Pyradoiiiend, like Elh/cJi- Cerophytum pidsator, three specimens nia. found under chips and stones in early Photinus ptyralis, our commonest firefly. spring. Phottiris pennsylvanica, very abundant. THROSCID/E. Phengodes spec.?, a single female specimen has been found. Drapeies geminaius, under rotten bark and Tytthxniy.r erytlirocepliubt, I'ommon on on dead branches. l)usbes. Aulonotlirosrus and Tliroscus, under old OitidJics margUiatw<, rare, beaten from leaves and plants. bushes. Chaidiogiiallius, very connnon on blossoms BUPREtSTlDyE. and flowers. Clmlcophora virginiensis, in pines; cavi- Podabrus fricostdliif iu\t\ //f^s'/Ao'/.v, rare; the pestris, on sycamore. others common. Dicercri, on various deciduous trees. (S7//.S percomis and .'^jidthiddtd are both I'(ecilonota debilis, very rare. rare. Buprestis rufipes, on oak; the other species Ditenmus I/idenhdus, very common on on pines. clover. CInyra gracUipes, on oak. Teh'phorus. All species are on low plants Melcniophila, all on pines. and bushes. AiiUtaxw, all on various deciduous trees. Polein'ms laticoriiis, on meadows. Chrysobothrisfemonda, pusilla, azurea, and Trypherm kdipeniiis, common on bushes. scitida, on various deciduous trees ;,/?or/- Malihiniis and Midlhodes, on Inislies and cola, denlipes, 6-signata, han-isii, on pines. grasses in meadows. 48 PJIOCEEDINGS OF THE NATIONAL MUSEUM. VOL. XXV. ECOLOGICAL NOTES—Continued. malac;hiii)/E. Eucrada humeralis, on bushes. Ernohius mollis, on old woodwork; the Collops, more or less common in mead- others beaten from pine branches. ows, chiefly on clover. Ozognathus ftoridanus, two specimen-;. CJuvtoccelus setosus, on branches of oak. beaten from bushes. Attains. All Anlhocomus Pseudebteus, and Oligomerus, all on dead branches. the species of these genera are found Sitodrepa panicea, everywhere, in houses. on grasses, flowers, and bushes. Hadrobregmus, beaten from d e a d branches. MELYRID^. Trichndesma gibbosa, in old branches. Anobium notatum, on old oak branches. A/i/))ierlt< rriJimta, chiefly found on chest- Trypopitys sericeiis, old branches. nut 1)lossoms. on Pelalium bisfriatuiu, very common on dead CLERID.E. branches. Tlieea, Eupadus, and Xyletlnus, all on old Elasinoccrus terminaius, found on trees in- twigs. fested with Scolytids and Bostrychids. Lasioderma .' Chariessa pilosd , on dead branches of de- bark. Dhioderus and Rhizoperiha are ciduous trees. importations. Cregya, like Chariessa. Orthopleura damimrnis, on Ijranches of LYCTIDiE. oak. Lydus and Trogoxylon, both in old woods. Necrobia, all on dried animal matter. DERODONTID.E. CUPESID^. Cupesconcolur, on old wood. Derodontus maculatus, on mold under loose bark of trees. Laricobius erichsoni, found many years ago LYMEXILID^. on pine in the Smithsonian grounds. Lymexylon sericeum, boring in old oak wood. PTINID.E. Micromalihus debilis, one specimen found in the city. Gibbium jisylloides, one specimen found at the wall of the United States Treas- CIOID^. ury building. Ptinus fur and bvnnneus, in houses; qiiad- Cis. All species live in fungi growing on rimaculatns and interruplus, one speci- logs and stumps; quite a number of men of each in white rotten oak. species are not determined yet. BEETLES OF THE DISTRICT OF COLUMBIA— ULKE. 49 ECOLOGICAL NOTES— ( ontiiuied. Ennearthron tJioraricornt', like r/.s; j^everal (li'dtrnpi-x, all iu lotten fungi and dung; undetermined species. hornii, under the stem of a toadsto(jl, Ceracis sallei, like Eunairllirun. also at electric lights. Rhipidandruspdriiilodus, in a white fungus Clipoius djihodioides, in rotten wood. at the base of trees. Trox, all the species are found in dried carcasses of mammals and birds, also at SPHINDID/E. electric lights. Sphi)ida>< (iiiicricditiis, in fungi growing on Ildplid, found flying on sandy soil. timber. Dlrheldni/c}td, on bushes. LVCA^WAi. Serica vesperihia, very conunon under stones and logs in spring; iricolor and Lucanus I'htjiIiKK, one speeimen said to l)e .^ericea on bushes; trorifonnh, rare. found in Washington; (hiinti, not rare Mdcradaciylus subHpinoKn.s, the well-known at eiectrie Ughts. rose chafer. 1 >()rcus parallelus, in white rotten wood. D'lplotaxin, the species are all found under Platycerus and Cerucliux, Vike Dorcns. stones and on bushes. Nicagus olm-urus, on sand l)anks along the Luchnoaterna. There are 26 species in the Eastern Branch. District. All are found on trees at night, or attracted by lights. PAHSALID/E. Anomala marginaia, on grapevine ; the Pasi<(tU(.'< cdrmilu.s, l)oring galleries in old others all on pine. stumps and logs. Strigodenuu, the two species are on blos- soms of riiba.^. SC'ARAB.EID/E. rclldiiotd piiiirtdid, ci.nnmon on grape- CanOioii. hvrix and vigilant, conmion in vine. dung; riridis, under old leaves. CuldljM lunigerd, on cottonwood trees. tlucridiuin hixteroides, in decaying fungi. ('ydocephaki, flying after dusk. Coprh, all in dung. Chalepua tracliypyguif, on muddy grounds Fhauniix carnifex, in human excrements. along the river, and abundant at elec- Onlhophdgus hecale, tuberctdifrons, and tric lights. poinnylvanlcus, in dung; janux and vari- Ligyrus, in moist sandy places. eties, in decaying toadstools and fungi. Aphonus, in old decayed stump of trees. Aphodius. All species of this genus live Xyloryrtes salynts, larva very abundant in various kinds of dung; only serral under stone.s in pastures. is found under old leaves, and (ihlnngiix Strati-gKK di)(:riis, in rotten wood. in hollow trees. Dyiidxt^'s tityiix in rotten wood, not com- Dialytes tnincatus and sfrldhdns, in horse mon. manure. FhileiirKs ndgiix, one specimen dug out Ativiiiiis, all species found in rich grounds; from the ground. jigni'dtor, found at electric light. AUurliliid nitida, extremely abundant in JiJnjsf^einus scaber, under stones in wet spring. sandy places. EiijjJiorid iiidd, very abundant in early Pleurojdujrdx cn.siis, in rich soil; i-rii(r(dls, spring; (ircdld in sandy roads; herbaceo one specimen. on bushes; Jiilgidd and si'pnk-firdlis on Psdmmodias Inlerriiplux, iu sandy places blossoms. along the river; irgidHoides, one speci- Cremastochiluy: leucost ictus, one specimen men. occurred at Odenton, Maryland. All -Egi(d'n(, one undescribed specimen. the others are found in nests of various Ochodieus musculus, one specimen. ants, also flying on roads. Bolboceniy:, found occasionally in roads. OsmoderuM ereuilcoki and scdbni, in rotten Odoriticus cornigerna, like r>o!bnc('n(s. trees. Proc. N. M. vol. XXV— 0-2 — 50 PnOCEEDTNGS OF THE NATTONAL .UFSEUM. ECOLOGICAL NOTES—Continued fi)iorh)n(s maculosvx, on hloH^oins, \ery Cidloides nobilis, rare. rare. .1 rliopalus fulminavs, rare. TrichiU'S, all species are found on HcjwerH C'l/tiis marginicoUis, not common. and blossoms. Xylotrechiis colonus, very common; sagit- Valgv.^, in decaying chestnut trees. tcdun, in pine; rjiiadrimaculatiis, rare. Xeodytiis, on flowers and running on yPONDYLIDyE. trees. Parandra brinuica, under liark of old de- Clytmithiis rnrinila and Asemion uidstKni, on i)int'. ers; pint, in lumber yards. Cr/orr^>/(rt^».s, freijuentiy met with in lum- Atiiiiia rotitma, not connnon on juniper. ber yards. Dixlcitl<( iiiidiitd, in grapevine. Sinodicum cuciijifuniu', almndant under DexiiiocfrKx jHtllidhix, on sambucus. bark. Xecyddlin nielliius, one specimeu. Ilnlotrupt'x liajali(!<, on juists, lumber, etc.; Encydops cveruleus, on flowers. ligneus, on juniper. Rhngirnii lineatum, very connnon under PliymatodeH varius, in oaks; (inKoniti, in pine bark. grapevine. Centrodera decolnrata and pida, of l)oth Callidinm, all connnon on pine. single specimens. Q^jiie rigida, on juniper. ToJotUH trivittatuK, one specimen. Gracilia minuta, on twigs of trees. Arvia'ops direda, not conunon; diKcoide't, Chion cinctus. in hickory and oak. one specimen. Eburia quadrigemiintta, in lumber yards GauroteH cyGuipennln, on blossoms. and attracted by li Ciiriv)!, Phi/toii, Ohriinii. beaten from ous deciduous trees. branches and twigs. Moitohamiintit, on pine; also in our lum- CaUimuxi/s sanguinicollis, on flowers. ber yards. Molorchus bhnaculatiis, on blossoms. Dorcasdiema irlldil, on " osage orange; Rhopaloplioriis, on flowers. alternaium, on nmlberiy and osage Tragldion cof/iiKs, rare. o ange; nigrum, rare. Parpnricemis humeralis, on hickory and Hefa'mis dnerea, on nuilberry and hickory. oak; axillaris, rare. Cacoplia pullaia, one specimen. Balyle stduralix, very common on Hovverri. Goes tigrina, pidverulenta, ocnbda, and tm- SteiiospJieiiKs no(aU(s, on various trees. sellata, on bushes; ijidchra, on hickory; Cylleiie pictus, on hickory in spring; i-obi- debilis, on white oak. iiin', very common on solidago in I'h'cU-oih nt scKhtltir, ECOLOGICAL NOTES—Continned. AcdiilliodiTis ijiiadrij/llihiis, rather rare; Vrioceris asparagi and IJ-jyunctata, on as- (leripii'iis, very coniiiion; morrisn, very paragus, imported. rare. .lnom«a laticlavia, connnon on robinia. Lrptostijlux and Linpiix, all uii D/.'ctc>< npiuosKs, coninidn (ni various weeds. /labia and Sa.rlnix, on meadows. Lepturc/t's, like Lepto^lijlii.^. CJda)ni/s, larva on sycamore. Ilyperplatys, like the preceding. E.renia gibber and ronspersa, in meadows Vrographis fasciata, on deciduous^ trees. and on shrubs. Ceratograjjliis piisiUufi, in pine trees. Bassareus and Cryptocephalas. All species Ac(t77thocinus obsolelus and nodosus, in pine. of these genera live on various flowers Pogonochenis mbMs, in pine, rare. and bushes; only schreiberm on pine. Ecyrus dasycerw^, very common on decidu- Griburius eguestris, on wild roses. ous trees. I'arln/brachys, like Cryptocephalus; fridens, EiijKit/niiiiiK liimi')tt(i.sii.^, not rare on pine; on /i'/(».s toxicodendrons; there are some leslitii-^, (in l)uslies; xnlxiniuttiis, rare on unrecognized forms. beerh. Monaclms, Diachiis, Triachux, all on bushes Oiiciderfs cniijiihilii, on persimmon. and plants in meadows; Diaclms leris Atd.riii i-ri/j)l>i, on old l)ranehes. and TriacItVK raciiiixare rare. Ilijijiojisi.s lniiiiisr((t((, on weeds. Fidia riticida and /niigipcs, common on Sapcrtlii ohllijiKi, on alnus; Candida, on ap- grapevine. ple trees; iridentata and rcsfita, on elm; Xanthoma, very comuKjii on various lateralis, on willows; jmndiconix, on bushes. A'/ms toxicodendron. Mijochrovs deiiticd/lls, by sweeping mead- < iherea bimaculata, on rubus; 3-j)iiiirlata, ows. on solidago; oceUata, and gracilis, rare; Clyptoscelispubescens and barbafa, common ruficoUis, on sumac and sassafras. on pine. Ti'trops monostigiita and jiicunda, on mead- (i'raj)hops, in meadows, esj)ecially on ows. I'lover. Tctraopes tetraophthalmus, on Asclepias cor- Typophorux camlliis and varieties, very nuti; eanteriator, on an orange-colored common in meadows; riridicyaneus, asclepias; 5-macidatus, on specimen. rare. A ntphionyclia flammata, on bushes. Mdacliranta, on bushes, especially oak. Ihjsphaga tenuipes, in hickory; ?^ot's, one Chrysocliii.^ atiratiis, common on apocy- s])ecimen. num. Tyniiies tricolor, connnon on l)ushes. CHRYSOMELID.E. Colaspis, common on meadows and bushes. Doiiacia ri net ironiis,palinata, and jiiscatri.r, RJatbdopteras picipes, like (^'o/as]ns. on aquatic ])lants; the others on swami)y Xodonota, on flowers and bushes. meadows; the only specimens of /(//yvo- Chrysodina, like Colaspis, very common. /ewco were found at electric light. Prasocuris raripes, on swampy grounds. Ihcmonia nigricornis, in SAvamps on water Labidornera clivicoUis, on Asclepias incar- plants. Orsodacna atra, on willow blo.ssoms in Ii ptinutarsa decendineata, the well-known early spring. potato beetle; juitcla, has disappeared /I'ltgophora pubenda, on jjuplar. from our fauna since the arrival of Si/iieta ferruginea, rare. decendineata. Lriiia sai/i, on (' ECOLOGICAL NOTES— ('(intinne.l. Gastroidea cyanea, on rumex. Dibolld borealis, on jilantago. Lina lapponica and xcrijda, on willow?;. PsijUiodfs conrexior, on low i)lants. Monocesta coryli, on elm, rare. Microrliopala vitlala and j-crenc, live ( Trirliahda tomentosa, rare; rir(/ala, one solidago; the others are rare; nu'lxlu specimen. mcri, very rare. Galerucella americ plants; decora, on willows; votata, Phyllerlillirns dorsal i.s and grufllis, on les- vulaceic. pedeza. BRFCHIDiE. Cerotoiua Irlfin-cala. common on bushes S/HTiiiopliagiis robiiii.-r, on (i/editsrliia Iria- and meadows. ' Blepharida rhni.s, ,,n rhiis. ranihns. llnu-lnis rhi- P((chii()iii/rltiix parado.ras, on smiiax. i,is,,rii,H, in peas, inip Ladicn /r/.s and tibialis, both rare. Epitragiis aniwliiiis, on bushes. Diphanlaca bicolorata, rare. Pliellopsis obcardata, under old bark, one Orthaltica copalirat, very common on si>ecimen. sumac. Illaps sill, His, said to be found in Alexan- Crepidodera rvfipes, on })lack hjcust; hfl- dria, \'irginia. xines, very abundant on willows; tiiri- Polypleiti-Ks gnniiialns. nnder stones and rentrift, abundant on meadows. chips. Epitrix, very abundant on various low Nyctobates }>eiiu! «S'?/s ECOLOGICAL NOTES— ( ontiiiucd. Opatrmis votiis, very coiiiiiion under i>A(iKm)/K. stones. Artlirnmncni niiin Bldjisllniis, under stones and chips in Sldtini. like Arlln sandy places. I'rihuliiunfemigineuiiinudconfuswi), under M()N().^LMII)/E hark, introduced. IlypurJiiignnpiiiicliihih Ly]>h'iaficicola, rare. (uchest- nut logs. Dici'dus pnnetahis, very common under bark. MELANDRYID/E. Echocerus maxillosus and dentiga-, both im- Tet.ratomatesse/lald, on rottt'ii ported. twigs; trim- corum, rare. AlphhoJiiva PYTHID.E. CISTELIDtE. Boi-dx iinieolor, under pine hark, rmce A/li'rii/,1 aim and pmnctulata, on dry twigs found across the Free Bridge. If'/iin iinnis, on bushes and dead branches Pi/llio (Hiiericanns, under bark of stumps, < 'ixiclii breris and margbudd, on flowerini rare. trees. S(dpingns virescena, rare, two specimens. hontira, on flowers and bushes. lihinoKioni.s viridianieus, one specimen. Mycetochares, on old wood, but rare. Chromatia aiiKcna, rare. CEDEMERIDJ^.. Cd/iiiorJirod and Andmrhims, on hnshc; }firrniiitu(s firrlcav.v, verv c< and old twitrs. hushes. ( 54 PROCEEDINGS OF THE NATIONAL MUSEUM. ECOLOGICAL NOTES— iniiml soruh! md pota- Ndccrilfs iiidaiii'va, cverywlieiv m itie Macrvhasis toes. city. Ejiirdiild jinnisi/lnuiicii and ciiu-rcd, on (>.i((cis, ]'ri>h()Kci(, an ECOLOGICAL NOTES- ( liaz.'l aii.l ..tl < h-clusl,'s .<((/ i, -is, iiigrr, iiallidicornis, on Imsliep. willows; bclidi'li, on Bclida nigra. Priononu'vas calccatas, on CURCULIONID.E. sassafras. Piazorhinus Scutellaria, v(M-v c((mmon on Si t une.^ flavf.scei IS and Jtlspididns, very coni- bushes; piclus, rare. iiion on clover. Thysanocnemis helvolvs and fraxini, in Itln/cents novebomcensh, on hickory. seeds of FVaxinus. Ap'ton. All species occur on dry or moist Ploceies ulmi, on Cephalanlhus ocridimtalis. meadows, on shrubs and bushes; only Gymneiron teter, on verbascum. a few of them have been bred, and Miarus hispidulus, on Lobelia syphilitica. the food plants of these have been Lsemosaccus plagiatus, on oak bushes. repeatedly recorded. Conotrachchts juglandis and elegans, on Podapiou gaJlicohi, l)re.d from its jiall on hickory; /ralagi, on Crataegus; nenu- Pbms rigkla. phar, on plum; ttiberosiiK, on urtica; Phytononnis comptus, on meadows; jmnc- Jissunguis, on hibiscus; anaglypticus, tatus, is the well-known imported clover- under moist bark and various bushes, leaf beetle. very common; hispidus, rare. Listronotuf:, all the species are found on Rhyssematus lineaticollis, in the pods of sandy and muddy grounds near water. asclepias. Macrops, like LisfroiiotKK. Chalcodennu.'< collaris, rare. PIssodes sfrohl, common on pine. Microhyus setiger. on dead branches. PdchylobiKs and ILjlohhiK, like Pissodcs^. Acamptus rigidus, in red-rotten wood. Eudocuiiiix iiKinnerln'liiii, rare. Acalles, all under decaying leaves. Lixiiit, all occur on rather low meadows. Tyloderma foreolatum, in stems of (Eno- Donjtoinnx hrnncollis, on poplar. thera biennis; fragariie, on fragaria; Pachiiphdiicx amcenus, on Cuscuta. ;ereum, on plants growing in bogs. Smicrony.r. All the species are found by Phyrdenus undatus, on Solan tmi nigrum. sweeping on meadows. Cryptorhynchus. All species are on dead Promecotarmia gibbirostris, like Smicronyx. twigs. PhyUoiroxferruginevs, on bushes. Piazurus oculatn.^, on lu;shes, very com- BirfcJiybdiiius, OiiyHtylis, EixhdKs, Tany- mon. spliyrus, Lixsarlioptitf!, and Bagous, all Copturns binolatus, on Oledilschia triacan- these genera are found on palustral thos; quercus, on oiik; loiajiilvs,m poda- plants. piou galls; minvtiis, on oak. OtidocephaJiix. Our species are iiKiuili- Acoptns srduralis, connnon on dead nous in Cyuipid galls. branches. Magdalis olynt, on hickory; perforata and Taclii/gniiiis leconlri, on oak; l on elm. ( rajiDiiiiis iiuiipAali.'t, on yrapes. Tachypteruii qnadrigibbus, on C'rat;cgusand AcaiitJaiscelis curtu.'< and acrjdialns, com- apple. mon on polygonum. Antlioiioiiiini gnlari>i, in pods of cassia; Aalciitcs, all on swampy meadows; nelnt- siduralis in wild plum; xycophanta, in- losiis an(]'asper, rare. quilinous in willow galls; juiriperiiinx, I'e/enosomiis cristaliis, one six'cimen. in the juniper fungus; luolecuhtx, on Ac ECOLOGICAL NOTES—Continued. Pelenomus suldcoUiK, on i)olygonuni. Sl('ii(/iiii)ims paliidus, under bark, rare. RJiinoneus perica rpi us, pi/rrliopn x, and /<*//- J'hhrophagtis apiahides and minor, on dead gulvK, all on polygonaceou.s plant.<. twigs. Bariii, the specien are obtained by 8\veep- Wollaxtonia quercicola, like Phheoj)liagHs. ing meadows. A maurorhinus niiens, on dead branches of Plesiobaris T-signmn and (liyancld, in grapevine. swampy meadow.*. Hexarthfum idkei, rare, seems to be im- Gli/pl(>li(iris, (hii/i'liolidris, and Aulobaris, ported. all ari' obtained liy sweeping marshy lilii/itcohis oregonensis, rare. meadows. Strnoscelis brevis, common in rotten wood. Ampeloijbiptir atrr an Psendoharls /wctordlis and iiii/rii/d on SGOLYTID^.. meadows. Trirlioharls Irliiolala, on potatoes. Sra/i/tux (pu(drispinosu.<<, on hickory; imdi- Centrimis. All live on flowers, espeeially rnx, on celtis; ritgulosus, on fruit trees. in the fall. Chrnmesus icorise, in branches of hickory. CentrrnopuK, Nicenlrns, Limnobaris, Olif/o- Phlicotribus Ibmnark, on fruit trees; fron- lochus, Idiostethus, and Stelhohtrix, all tdlis, on Moi'df! rubra. these genera live on various herbs and Illl/t'.'^'nuis (icideatus, under bark of ash; weeds in meadows. ojidcuhis, under elm bark; fasciatus, Ziylifptus slrinlitx and tmlcatux, in dead rare, infests twigs of Fraxinus. twigs. CiieHinus strigicollis, on liquidambar. OomorpJiidiux Liricol/is, one specimen. I'ldcvodnus dentatus, under bark of juniper. Barinus cribricol/ix and curticollix, rare. (hrplioborus bifurctis, under pine bark. Barilepton filiforriie, in swampy meadows. Ih'iidrodonus terebrans, under pine bark; Plocaimis hixpidiilux, breeds in dead twigs frddlaUs, one specimen. of Robiiiid psciid(ir melcmocephalux, xndplilis, aii,d pumilns I'Ifyoyi'iirx p/agiatus, on pines. are very abundant. Xi/lii(:'e/>l('x deripicnx, rare. Odandrn orijztv and (/raniirin, in stored Toiiiicux. \U under bark of pines. rice, wheat, corn, etc. Dryocales granicolUs, rare. Dryophlhornx^corliadis, very conunon mi- Micracis suturalis and opadcoUis boring der bark of rotten trees. in old twigs; rudls, in willow, rare. Hhnathnn crrdiis. under bark; coiiicn/ii, in TlnjxdDdcx tiiidn-iroiiiis, in dead hickory bark of I/irnxlindron tidipifera. twigs. Cdxxdiidx i,ii/>rcxxifrnvx, under bark of vari- (,'iidl/i ECOLOGICAL NOTES—('ontimied. Xyleborus tachygraphus, bores in Acer Tropideren hiuHinildtiiK and rrrhix, on dead dasycarjnim and other trees, on the shore twigs. of the river; dispur, in apple; celnts, Horrniscus, lYjxotropin and l-Jiis/)liynis, all in hickory; hiograplms, male of relsus; common on old twigs. fiii^cntvs, very common in oak; plani- Piezocoryniis diHjiar, rmrshi.^ i\n(\ mi.rhi.--, on collix, probably male of fui /(/.s(V(////s, probably male of pidjexcenx; rather rare. xylographm, abundant on oak. Ardhrihiiit <-()rindni<, not rare on dead Xyloterus xcaftricoUis, rare; politus, com- branches. mon, bores in Acer dasycarpum. ('ndoparix limatus and lugubrls, in fungi Corlhylus punclatissimus, common in the growing on old logs; lunalm, exceed- roots of Vacciumm corymbosum. ingly common; lugubris, rare. Monarthrum fasciatum and mali, very Brachyiarsus allernatus and variegatus very abundant in deciduous trees. common on meadows; tomentosvs, very Platypus Jfavicomis and (piadrideril(it)is, common on ambrosia. mostly boring in pine. Anthribidus rotundatnii, on swampy mead- ows, common. ANTHRIBID^. Choragas, not rare on dead twigs. Eurymycter faseiatuK, on old branches. Euxemts punckdii>>, on twigs, rare.