Cockerell, T. D. A.

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Utah State University DigitalCommons@USU Co Bee Lab 3-1-1910 New Bees of the Genus Osmia from California T. D. A. Cockerell University of Colorado Follow this and additional works at: https://digitalcommons.usu.edu/bee_lab_co  Part of the Entomology Commons Recommended Citation Cockerell, T. D. A., "New Bees of the Genus Osmia from California" (1910). Co. Paper 262. https://digitalcommons.usu.edu/bee_lab_co/262 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 Co by an authorized administrator of DigitalCommons@USU. For more information, please contact digitalcommons@usu.edu. Mar., 'rn] ENTOMOLOGICAL NEWS 120 New Bees of the Genus Osmia from California. BY T. D. A. COCKERELL. Osmia gabrielis sp . nov. !;? • Length about I31/~ mm., width of the rath er long and nearly paral-lel-sided abdo111en about 4 111111.; color a fine dark indigo blue, brilliant on the abdomen, suf'fu ed with purplish on the face, and with greenish on the anterior part of the mesot horax; pubese11ce all blaclt, except on inner side of anterior tarsi, where it has a coppery tint; in som e lights there is an appearance of pale hair here and there, owing to reflect ion from the surface of the coar se black bri stles; head and thorax very densely punctured, th e punctur es on the mesot hth orax con spicuousl y finer than th ose on the vertex; head rath er lar ge, the checks broad; mandibl es with the two apical teeth well developed, but the others nearly obsolete; clypeus simple, its lowe r margin black; antennre black; tcgulre black; wing s fuliginous, broadl y more or less hyaline along the yeins, especially the outer ones; first r. n. entering, s cond s. m. nearly twice as far from base as second from apex; legs black, th e fcmora stron gly tinged with blue; second abdominal segment purplish basally. A very distinct and beautiful species, having the genera l form and appearance of 0. armaticeps Cresson, but without the cephalic peculiarities of that insect. Hab.-San Gabrie l Mountains, California, alt. 3000 ft., June 16, 1909 (F. Grinnell, Jr.). At the same time and place, Mr. Grinnell took 0. quadriceps Cresson. Osmia grinnelli sp. nov. !;? • Length about JO mm., rather robust, with a short abdomen; head and thorax black, with feebl e metallic tints, strongest at sides of face. wher e the greeni sh contrasts with the black of th e clypeus; abdomen dark bluish, the first two segments partly brassy; hair of head and thorax inconspicu ous, black mix ed with shining whit e; a tuft of white hair behind the wings, but that 011 sides of metath orax and on pleura black; hair of abdomen black , even on first segment, but some white hairs forming a little tuft at sides of first segment near hind margin; legs black, with black hair, that on inn er side of anterior tarsi copper-red; tegulre dark; wings hyalinc, mor e or less tained al ng th e ncrvurcs, b. n. exactly meeting t. m.; second s. m. low, receiving first r. n. only a littl e more remote from base than second from apex; an tennre black; mandibles with only the two apicl teeth well developed, these far apa rt; clypens with very large punctures, smaller and extremely dense toward lowe r margin, next to which is a median broad sh inin g pit or depression. I2I ENTOMOLOG ICAL NEWS [Mar. , ' ro A very ordinary looking species, easily known from 0 . nig-rif ro11s, wi lmattae, pik ei, etc ., by the disc of the mesothora x, which has large well separa ted punctures, with extreme ly sma ll pu nctur es between them. It is related to 0 . leonis Ckll., but that is larger and has the clypeus much more den sely pun c-tured . Hab.-Strawber ry Va lley, San Jacinto Mts., Californ ia, 6ooo feet, July 16 ( F. Grinnell, Jr.). Osmia sanctre-rosre sp. nov . ~. Leng th abou t 8½ mm., moderat ely robust, fine deep indigo blur, the abdome n brilliant and shining , though not equal to that of 0. coba/-ti11a; pub escence black, includ ing inn er side o f front tar si and tuft be-hind wings, but a little short glittering white hair on hind er part of disc of th orax, and a quit e conspicuous littl e pale patch on each side of first abdomina l segment, along the hind margin; 111a11d,ibles eve11l31 tridrntate, the teet h all strong; clypeus normal, two littl e tufts of orange hair be-neath lower edge; punctu res of head and thorax sma ll and very dens e ; antenn.l! black; teg ·iilae shining bl1u; wings dilute fu scous, paler along the veins; second s. m. receiving first r. n. at leas t twice as far from base as second from apex; legs black, femora blue behind; beneath the femora have large concave smoot h and shin ing areas fo r the recept ion of th e tibire; scopa black. R elated to 0. tris tella Ck!!., but with no white tuft behind the wings , legs partly metallic , and venat ion differ ent. The less brilliant colors sepa rated from 0. cobaltina Cresson. Hab.-S anta Ro sa Mountains, California, 7500 ft., June 26 ( F. Grinnell, Jr.) 0 . cobaltina was tak en by Mr. Gr innell on Mt. Wilson, California , June 5, 1909. The mal e has th e same para llel-sided form as the fema le. Osmia pogonigera sp nov . ~ . Superficially like 0. w i/11101/ae, with which I at first con fu sed it, but readil y separ able as follows: abdomen narrower and bluer, less closely punctured; wings r edde r; hair of und er side of pr othorax whi le; face with much glistening whit e hair, th ough coarse black hair s are in-termix ed; pleura denud ed in type, but with some short white hairs. es-pecially behind; cheeks beneath with some white hair , but a lso with long curled black bristles , for111ing a co11spirno11s beard. The last cha r-acter is absolu tely distinctive. Length about TO 111111.; legs black; sides of meta thora x with white l1air ; ventr al scopa black; tegulre partl y blue . Mar., 'ro] ENTOMOLOGICAL NEWS 122 Hab.-Strawberry Valley, San Jacinto Mountain , Califor-nia, 600 0 ft., July 17 (F . Grinnell, Jr.). 0. wilmattae Ckll. (A variety with hair on inner side of hind tarsi; dark) was taken by Mr. Grinnell in the San Gabrie l Mountains, Califor-nia, at 3 0 00 ft., June 16, 1909. Osmia pasadenre ~P nov. i. Length a littl e over 8 mm., olive-greeii, th e mesot hora x more bluish-green; head and thorax with abund an t long pal e hair, which is dorsa lly pale ochr eous, lighter laterally, and white ventrally; no dark hair s on head or thorax; hair of abdomen and legs also all pal e, with out any black, forming distinct thro ugh thin bands on segment s 3 to s; hair on inn er side of hind basitarsus pale orang e; antennre black, the flagellum slender, not at all 111ouilifor111; head and thora x very densely punctur ed ; tegulre shining black; wings dilut e fu scous; second s. m . long and low, receiving first r. 11. not twice as fa r from base as second fr om apex; legs (exce pt hind coxa:) not metallic; tarsi ordin ary, except th at hind basitarsus has a small tooth as in the subgenus Ceratos111ia ( to which the insect is not otherwise closely allied); abdomen rather nar -row; sixth segment somewhat reflexed, and feebly emarginate; seventh bidentate, th e teeth rath er short and far apart; first ventr al segmen t ob-tus ely triangu larly produc ed at apex; margin of third ventra l undul ate. In general appearance similar to 0. imtrbana Cresson , but smaller, with a narrower abdomen, and readi ly distingui shable by severa l structura l characters above described. Hab .-Pasadena, California, Apri l 2, 1909 (F. Grinnell, Jr.) . 0. ol-ivaeea Ckll. also has the tooth on the hind basitarsus, and must be closely allied, but it is easily separated by the black hair on the abdomen, etc. Also at Pasadena , Apri l 8, 1909, Mr. Grinnell took 0. be11-11ettae Ck!!., new to California . 

New Bees of the Genus Osmia from California

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New Bees of the Genus Osmia from California

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