168 



BEES OF GREAT BRITAIN. 



cate; the antennse slightly piceous beneath. Thorax clothed 

 above with rufo-fulvous pubescence ; the wings fusco-hyahne 

 their apical margins having a darker cloud ; the marginal cell 

 has a fuscous stripe above ; the tegulse and nervures rufo- 

 piceous. Abdomen subglobose, shining and faintly punctured 

 the two basal segments thinly clothed with pale fulvous pubes- 

 cence; beneath the pubescence is dense and black. B.M. 



Male. Length 4-4^ lines. — Nigro-seneous ; the face densely 

 clothed with long white pubescence, at the insertion of the 

 antennae it is pale ochraceous ; the antennse nearly as long as 

 the head and thorax, the flagellum pilose beneath. Thorax 

 thinly clothed on the disk with long pale ochraceous pubes- 

 cence, at the sides and beneath it is white, the anterior femora 

 densely fringed with white pubescence, on the rest of the femora, 

 tibiae, and tarsi it is of the same colour, but thinly scattered ; 

 the posterior femora and tibiae subincrassate ; the wings sixb- 

 hyaline and iridescent. Abdomen ovate, shining and closely 

 punctured, the apical margins of the segments impunctate and 

 very glossy, at the base, sides, and apex, a long griseous pu- 

 bescence ; on the third and fourth segments it is slightly 

 ochraceous ] the sixth and seventh segments are both deeply 

 emarginate in the middle. * B.M. 



The female of this species very closely resembles that of 0. 

 parietina, from which it may at once be distinguished by having 

 black pubescence on the face and fulvous pubescence on the 

 two basal segments; 0. parietina also agrees with 0. xantho- 

 melana in the colour of its pubescence, but the latter has the 

 face densely covered with black pubescence, whilst in 0. parie- 

 tina it is very pale. This is a very local species, and was once 

 captured in the month of April, at Birch "Wood, Kent, Mr. 

 Walcott finds both sexes near Bristol in considerable abundance; 

 he observes that it appears to confine its visits to the flowers of 

 the Common Bugle. 



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I 



I 



7. Osmia Mviventris. 



O. atra, pallido-villosa; abdomine nitido, atro-cserulescenti, ventre 

 lana ferruginea tecto ; ano in mare subemarginato. 



■ 



Apis fulviventris, Panz, Faun, Germ. 56. 18. 

 Apis Leaiana, Kirby, Mon. Ap. AngL ii. 263. 54 $ . 

 'Osmia Leaiana, Spin. Ins. Lig. fasc. 3. p. 200. 1 $ . 



Nyland. Ap. Boreal p.. 262. 3 ? . 

 Osmia fulviventris, Lair. EncycL Meth. viii. 578. 7. 



St. Farg. Hym. ii. 319. 9. 



