sign in sign up
<<
Home , Choreutidae, Sesioidea

40 J . E"ITOi\10I.. Soc BHIT COLUM BIA 75 (1978). D F.c 31. 1978

Ilatch. M. H . 1953. T he Beetles of t he Pacific Northwest. Part I. I ntroduction a nd Adephaga. Univ. Wash. Pub!. Bio!. 16. p. 348. Holland. W. J. 1888. Captures made while travelling from Winnipeg to Victoria. B.C. Can. Ent. 20:89-92 . LeConte. J. L. 1869 . Li st of Coleoptera collected in Vancouver's Island by Henry and Joseph Matthews. with descriptions of some new species. Ann. Mag. Nat. Hist. Ser. 4.6:369-:385. Walker. r. 1866 . List of Coleoptera. In Lord's Naturali st in Vancouver Island and Bri tish Co lum­ bia Vol. 2: 309-334 .

EUTROMULA PAR/ANA (CLERCK) (: ), THE CORRECT NAME OF THE APPLE-AND-THORN SKELETONIZER

JOH N B . H EPPNER Department of Entomology National Museum of Natural History Smithsonian Instit ut ion. Washington, D.C. 20560

ABSTRACT Nomenclatural problems are noted which make Eutromula pariana (Clerck) t he correct name of the apple-and-thorn skeletonizer. P reviously used generic names are distinct genera ( Hawo rth and H emero­ phila Hubner. [1 8 17[ ). synonyms ISimaethis Leach). or unavailable names I"" Hubner, 1806). The species is now placed in the Choreutidae ISesioidea) which has been separated from (Copromorphoidea ).

The apple-and-thorn skeletoni zer. Eutromula the I nternational Commission on Zoological pariana (Clerck). is an occasional pest of apple Nomenclature (Opinion 97, 1926) . The next trees, introduced from Europe this century . available generic name is Eutromula Fr·olich . It is now firmly established in apple growing 182 8, with E. pariana as its type-species. The a reas of the northeastern United States a nd available and valid Hemerophila Hubner , southeastern Canada, and in British Columbia. [1 817 [ (not Hubner , 1806) , refers to a Neotropi­ going sout h to Oregon. Idaho, a nd Colorado. cal genus. SimaRthis Leach. 18 15 is a junior The specific name of the species has been com­ synony m of Anthophila Haworth, [1 8 11[. which bined with several generic names in the past, refers to a genus distinct from Eutromula . mostly Anthoph£La, Simaethis. and Hemero­ Although there are dark and light forms of phila. The latter generic association was most E. parialla. both in the Nearctic and the recenLly affirmed by Danilevsky and Kuznet­ Palearctic, Doganlar (1977) correctly noted t hat sov (1973) and noted by Doganlar (1977). only one s pecies is involved. A recent paper has In a for t hcoming revision of t he North noted the reasons for t he sepa ration of gly­ American Choreutidae (Heppner , in prep.). phipterigid into two families. Glyphip­ the name used for the species will be Eutro­ terigidae' and Choreutidae (Heppner, 1977) . mula pariana, following the combination used The two families actually are unrelated and in a recent British checklist of Lepidoptera belong in different superfamilies based upon !Bradley. 1972). Danilevsky and Kuznetsov morphological a nd biological features, thus, (1973 ). unfortunately, used an 1806 Hubner Copromorphoidea and , respectively, generic name that is now unavailable for use with Choreutidae being relatively closely relat­ due to t he rejection of Hubner's 1806 paper by ed to the specialized .

1. Glyphipterigidae is based on the original spelling of Glyphiptcrix as required by the Interna­ tional Code of Zoological Nomenclature. rather than the emendation Glyphipteryx (Gly­ phipterygidae ). J. E"TO~ I ()I .. Soc. BHIT CO LU \IllIA 7511978 ). DE c. 31. 1978 41

HEFERE\(, ES Bradley. J . D. 1972. IMicrolepidoptera parLs). Par t 2: Lepidoptera lin part! . In. Kloet and Hincks. A check li st of Britis h . Second E d ition (revised). Royal Ent. Soc. Lond .. London. 153 pp. Danilevsky . A. S. , a nd V. l. Kuznetsov. 1973. (A review of t he g ly phipterygid moths of the genus II l'ml'l'ophila Hb. 1 Lepidoptera . Glyphip terygidae) of the fauna of the USSR.). Tr. Vsesoyuz. E nl. Obshch. 56: 8 -1 7. lin Russianl_ Doganlar. :vi. 1977. The systematic position of the apple-and-thorn skeletonizer. J . Ent. Soc. Br. Co lum bia 74: 26_ H eppner. J. B. 1977. The status of the Gly phipterig idae a nd a reassessment of relationships in y ponomeutoid famllies a nd n s uperfamllies. J . Lepid_ Soc. 3 1: 124-134_ Heppner , J . B_ (in prep _i. Sesioidea_ Choreutidae_ In. Dominick. e( ai, The moths of America north o f :Vl exico. Fasc. 8. 4 . Classey. London_ (approx_ 100 pp_. 4 pis .). Opinion 97. 1926. Did Hubner 's Tentamen. 1806_ create monoty pic genera? Smit hson. :VI isc. Coil. 73:19-30.

LARVAL AND DISTRIBUTION OF GERRIS PINGREENSIS AND G. INCOGNITUS (HEMIPTERA: GERRIDAE) IN BRITISH COLUMBIA

J_ R. SPE NCE A ND G_ G_ E. S CUDDE R Department of Zoology University of Brit ish Co lumbia Vancouver_ B.C_

ABSTRACT Diagnostic morphological characters are given fo r the five larval instal's of Gerris pinw-eensis and Gen-is illcognitlls. The geographic ranges of the two species are compared and discussed.

I\'TRO()C('TIO\ .\I ET HOD S A;'\i () _\IAT ERIALS Waterstriders 1Gem' , I a re common in habi­ During May 1976 a nd 1977 we establi s hed tants of British Colu mbia's in la nd waters. Ease laboratory cultures of G. pingeensis and G. in­ of observation and the common occurrence of cognitus. Adult G. pingreensis we re co llected multi s pecies assemblages make t hese insects from Westwick Lake in t he Carihoo region attractive s ubjects fo r comparative ecological while (;. illcoJ;nitlls were obtained from small s tudy _ A knowledge of species characteri s tics ponds in the Uni versity of British Columbia and natural history are necessary prereq uisites Endowment Lands. All five larval instars of for such work. both species we re s ubsequently reared from Scudder 11971 ) provided keys and descrip­ eggs la id by isolated adults. Details of the rear­ tions fo r the adults of British Co lumbia gel' rids ing methods a re given by Scudder and J amie­ a nd Scudder and Jamieson ( 1972) produced a n son ( l 972). Specimens of each larval instal' identificat ion guide for t he larvae of seven were preserved in 70 "'0 ethanol 1 or 2 days s pecies. At the time of t hese publications it a fter molting. Instal' descriptions a re based was not possible to separat e t he fir st three upon study of t hese laboratory- reared speci­ instars of Gerris ping reellsis D& H a nd GelTis mens. We have also checked the descriptions illcognitlls D& H . Furthermore. t he characteris­ against fiel d material collected on the lower tics noted fo r separation of fo urth and fi fth mainland a nd in the central interior from loca ­ instar s of these two species are in effi cient t ions where only one of t he species is known LO because of a typographical error missed in the occur. proof. [n this pa per we provide diagnostic descrip­ HESULTS AND I)[SClSSIO\ t ion s for all larval in star s of both species a nd _-\._ Lanai Taxonumy compare the geographic ranges of t hese two The keys and descr iptions provided by species in British Columbia . Areas of sympatry Scudder and Jamieson (1972) afford easy a nd allopatry are noted_ separation of G. pillgeensis and G. incoJ;lIitlls