MEGACHILE. 473 



V^. Head and thorax witii white pubes- 

 cence. 

 a^. Clypeus with a medial vertical 



carina M. pulchripes, p. 486. 



b^. Clypeus not carinate. 

 a*. Length 8-10 mm. 



a'. Legs entirel}' black M. albifrons, p. 487. 



b^. Legs more or less testaceous 

 or orange-yellow, 

 a'^. Pubescence pale yellow. . M.femorata, p. 488. 

 b^. Pubescence snow-white . . M. vigilans, p. 488. 



&*. Length 0-5 mm M, nana, p. 487. 



b. Pollen-brush bright fulvous or white at 

 base, fulvous at apex. 

 a'. Front above clypeus tuberculate .... M. hera, p. 489. 

 b' . Front above clypeus not tuberculate . , 31. chlorigaster, p. 489. 

 G. Abdomen w-ith segments 3-5 narrowly 

 fringed or ciliated with ferruginous 



golden pubescence 31. tricincta, p. 489. 



H. Abdomen with black pubescence above, 

 one or two apical segments with pubes- 

 cence of another colour. 



a. Apical margin of oth and whole of 6th 



segment above with dense clay-coloured 



pubescence 31. moelleri, p. 490. 



b. Apical two segments bright testaceous 



brown 31. steloides, p. 490. 



827. Megachile anthracina. (PI. Ill, fig. 11.) 



Smith, Cat. \, p. 175, § . 

 Megachile fasciculata, Smith, Cat. i, p. 180, (5' • 

 Megachile hornei, Cam. 3l€m. 3Ianch. L. Fh. Soc. xll, 1897 (c?)- 



§ . Head and thorax very closely and finely punctured, the 

 clypeus and front pubescent ; abdomen smooth, 

 the margins of the segments lightly depressed, 

 with a few scattered fine punctures, the apical 

 segment above pubescent ; clypeus moderately 

 convex, its anterior margin broadly arched ; 

 mandibles large, broad at apex and finely 

 punctured. Jet-black, with black pubescence, 

 somewhat sooty black and long on the median 

 ^^f}^'''fi segment behind ; the front above the ocelli, 



^cina^ r^^^ ^^."'' *^^® cheeks, and the thorax above bare; the 

 sides of the abdomen with a little black pubes- 

 cence ; the pollen-brush dense and black ; wings dark fuscous with 

 a purple effulgence. 



cJ differs in being smaller, more finely and closely punctured ; the 

 pubescence on the clypeus, front, and thorax anteriorly is fulvous 

 white, on the median segment and basal abdominal segment sooty 

 black ; the anterior and intermediate legs are rufo-testaceous on the 

 inside, the tarsi of the latter fringed with fuscous hairs, forming a 

 broad fan posteriorly ; the apical segment slightly notched in the 

 middle ; wings hyaline, broadly f usoescent along their apical margins. 



