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Ca Bee Lab
1-1-1898
Some Bees of the Genus Megachile from New Mexico and Colorado
T. D. A. Cockerell New Mexico Agricultural Experientment Station
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Recommended Citation Cockerell, T. D. A., "Some Bees of the Genus Megachile from New Mexico and Colorado" (1898). Ca. Paper 238. https://digitalcommons.usu.edu/bee_lab_ca/238
This Article is brought to you for free and open access by the Bee Lab at DigitalCommons@USU. It has been accepted for inclusion in Ca by an authorized administrator of DigitalCommons@USU. For more information, please contact [email protected]. On some B ees {If tlte Gerws Megachile. 125 n Flores. j
.XX.-Some Bees of the Genus Megachile f,-o,n New Jfe:cico and Colorado. By T. D. A. COCKF.RELL, Entomologist of the New Mexico Agricultural Experim ent Station.
J.fegachile TVootont, sp. n. d' .-Length about 13 millim. Moderat ely robnst, black, with rather thin yellowish pubes es. cence. Head ordinary, faci,,l quadrangle ab out square, face up to level of antennm with dense cream-colour ed pubes- cence; vertex with large close punctures and thinly clothed with long yellowish hair, with some shorter blac!c ones inter 1 lateral. mixed; cheeks broad, very thinly pube :;cent, lower part with nding to a conspicuous broad transvers e band of yellowish-white hair; the cleft antennre wholly black, last Joint broadened and .flattened ; ·ond th e mandibles ti·identate, more or less elbowed, fringed beneath .ar; eyes with shining yellow hair beyonJ the bend; a round ed tubercle 1rparieta1 at base of mandible beneath, tufted with yello wish hair; meso :aocular; thorax strongly and closely punctured, with thin erect pube;; 1eocular, cence, yellowish on anterior half, mostly black on posterior body 64 half; scutellum and pleura with longer and denser hair, that ing in a on· the pleura yellowish white .i tegulre black; wings dusky :ad, anal hyaline, broadly darker on apical margin; nervures black, second submarginal cell receiving second recurrent nervure a short distance before its apex; legs black, with yellowish .eived m white hair; four hind femora and tarsi ordinary, the tarsi t. · with fulvous hair on inner side; spurs ferruginous; middle coxre ordinary; anterior coxre with a stout tooth, above which at base is a well-defined patch of shining coppery hair; tht! Rostral tooth itself has a pale stripe on one side; anterior femora pale veen the orange ferru_qz"rzous,with a black apex and a black stripe on from the outer side from ba,qe to apex; anterior tibire ferruginous e 0£ the within, black without, broadly pale yellowish at apex, with a a little broad round ed lamina projectin,q at 1·ight angles; anterior : ; prre tarsi cream-colour; first joint hollowed, canoe-shaped, a little a little produced at end, but not as· far as tip of second joint, its end ird and rounded; the basal two thirds of its inner edge with a narrow rith the fringe of very short fuscous or black hairs ; it,q oitter margin length; near the base within with some very short blaclc hairs, not 2 scales forming a di11tinct patch, and easily overlooked; its hind ·ed with margin with the usual long fringe of pale hair, of which the >eneath, innel' hairs arc strougly tipped with black; remaining joints of anterior tarsi gradually diminishing, formed as in allied species; abdomen rather short, fairly uroa ~~-•..,- ..~ 'itri,,Gi,,..,. - "l"l~ .,.J.. ;..:.i.-w; .,...... ,"kM~:.G.~~ .....~( .,:_.- ~ .;.-'.,....ril,.t..,.:,C•~~ .,...... ---...... ~A-1. ".. ~ Fe--.. 'f, , ;1 ..-nr n.-11 ... 11,r.h Pa1f'1,nt'\Rfl , ~ nl\/ 11,uunf!llrllnn n, ThlB u~m "-1ttv Cnn,.t!tattft r.on v rlnht lnftlnoemont / ,· 'j • ' I 11 I I -Il I I I 126 Mr. T. D . A. Cockerel! on some I , I I I sided; with tl1in erect pubes cence, yell owislt on the first two i I segments and the first half of the tlu"rd, be!Jond tlwt bluc!c, witlt ·1 I ''I' a little yellowish h;t ermix ed; no tenclcnc.lJ to hair-b ands; apical I I J segment wi'th a very broad and deep semicircular emargina I I :, tion ; subapical ventral teetlt pla ced in a broad triangl e, all I I ' ! ! larg e and lon,q, pointed. I 'l' i I , .fl ab. Rui llfegacliile peri'hirta, sp. n. J .-J, ength about 12 millim. I :Mo .,,,, . Be es of tlie Oenus Mcgacliil e. 127 first two black patch, on inner edge with a black stripe, apex: with a lacle, witli small dcntiforrn projection ; ant erior tarsi cream-c olour, some what suffused with pale ferruginous, th e last joint pale s; ap!'cal mar,qzna ferruginous; first j oint deeply lwllowe i' - -~•Ill'" ...... ··--·- •• I I I ! I I /I I 128 l\Ir. T. D. A. Cock erell on some i I 1: i I ,, on the inner hind margin behind tl1e long frin ge, which. is 1: '' ' 1 I • as in the species with highly modified tnnii, and is wholly I I I white viewed from with out, but within the ha irs are black for their whole length. The four hindmo st legs nre black; :i middle tibia with a rufous spine at apex; middle femora : I I quite stout; spurs pale ferrug inous; middle tar si with a very l ;, I long fringe of white hair behind; hind tar si with orange \ ' I h ·, I I folvous hairs on inner side; abdomen fairly broad, pa.rallel i sided, punctured, second and tl1ird segments more or less 1·1 ( ,, ' 11 depressed at base; first segment broadly exca·vated, so that i; ! the dorsal (as distinguished from the anterior) surface is very l ii I small; pubescence very thin, white; the hind margins of the :1 i seg1rients with dense white hair-bands, that on the first thin : I and weak; apex not at all emarginate, irr egularly notched on :; t ,, ' ' each side of the middle; the thr ee snbapical ventral teeth in " ' 1\ the same transverse plane, the middle one long and sharp; ! i II! I '' l the lateral ones shor t, broad, and blunt. Rab. Las Cruces, New Mexico. One in the collection of I~ .-.. . .! I n i the New Mexico Exp eriment Station, probably collected by ·I ' Prof. Townsend. It had been studied by Miss E. Casad, ! ' J. I ,, who left some de.scriptive notes. I The following table separates the males of jJ:fegaclti'lewith peculiar front tarsi which are found in New l\Iexico, including also the species from Colorado described above. All have ) ' spines on the anterior coxre. Abdomen without hair-bands ...... • . . . . I. 1•· Abdomen ·with hail'-bands ...... 2. 1. Last joint of antenure dilated and flat i i tened ; subnpical ventr al teeth of abdo men very lurge; abdomen with muo:h \ black hair .... •...... Wootoni, sp. n. I' Last joint of antennre not or hard ly ;! dilated ; subapical wntrnl teeth of abdo- it men small; abdomen without bln~k hnir. perihirta, sp. n. (Colo.) ' ~ .i '•Ii 2. First joint of anterior tarsi produced to a f free apex ...... 3. J ' '\ First joint of anterior tar si not procluP.ed i to 11, free apex ...... 4. I ! r 8. The free apex like the end of a finger ; t hair-bands of abdomen fulvou., ...... fidelu,Cress. The free apex not like the end of a fiuger ; I • hair-bands whit e ...... pug11ata,Say. j 4. Thorax very pubescent, the pubesceuce ·j ·, ' i more or less ochreous or fuln>us ...... 5. • ,' ~ ' I ,, ·i Thorax not very pubescent, the pubes- .~ ....\ .. .. cence pale gre)'ish to white ...... 7. ~ I ,•, 6. Flagellum slender, uot crenulated beneath. lr1ti111auu1,Say. ! ' . Flagellum stout, crenulated beneath 6. ~ ..., \. 6. Pube11eenceof thorax yellowi sh grAy . . . . comata, Cress.· ) ' ~~ ,e! : ,; I i Bees of the Genu1JMegachile. 129 fringe, which is Pub escence of th orr.:c fulvous ...... f ort is, Cress. , and is wholly 7. Ant erior legs slender; anterior tar~i with hairs are black basal joint merely exp1mded int o a flat legs are black; lamin a at th e side ...... occidenlalia, Fox. mi llfegachile Townsendi'ana, sp. n. o .-Length about 10½ millim. , Cress. Black, with scattered white pubescence. H ead large, transversely oval; eyes sage-green; facial quadrangl e a little ~a, Sey. longer than broad, percept ibly narrowed below; face (in cluding clypeus) densely clothed with. white hair; vert ex strongly pun ctured, with very sparse white pubesc ence; · cheeks sparsely pubescent above, densely clothed with white ·nu,, Say. hair below; antennre black, flagellum slender, last joint not ·n, CreS11. broadened; mandibl es wholly black, the long hairs on their i1ilcrior margin whitish ; mesothorax very strongly and ·; l ; I ~.J F • " , I ;; : i . . ·1 /1 .., I I: ., I . 130 t· I / . : it r. E. Potts on a 1/ f( j Ii 1 clo;ely puuctured; . thoracic do:-sum almost nude, the whi~e I• ! I ·11 1 1,airs few and scattered, except at the scutello-mcsothorac1c i I 1 ' 1 ·I sutur e, v,·hcre they are dense enough to form a bnnd, and on anterior part of me,;othorax, where tl,ey form ·two obs?ure .,n ' Ii su blateral longitudinal bands ; te;;uhe testnceous; wmgs I ,'! :i i ,. ' hyaline, nervures . -~~~-,~ -~~---~~~~~ "~~l!!!!-!llld"'Qt.~_~·11'?N!!l'l_g:~. -~ ::1-•~""""~ . ,...,.I".~ f .·"""- ..:i t•:>{ l I I .~.. .· ~ , -...... ,= ., - · --a .- ...... ~ .. - ',"''-"-•....,; ,.-,,' _ ,.._------...... ~~ "'.•J or R• '.! .~(.<"...!'.-!!.•!.~~~ ly _._, /1 •P•? d~~•(on O I Thi, It nm May Con, tltuto Copyrloht ln1,1na;,.,. •• , , \ -- . . •. . "'"1. - ---~--... .., ~·. -- --' , -·- .... _.. .. ' -- ·-- . ·:•' •