ART. 12 MEGACHILID BEES FEOM BOLIVIA COCKERELL 17 



MEGACHILE CRASSIPES Smith 



Male. — Tumiipasa, Bolivia, December (W. M. Mann). As men- 

 tioned above, I believe this to be the male of M. scapularis , and if 

 this is confirmed, Smith's name has many years' priority. 



MEGACHILE CONSTRUCTRIX Smith 



Female. — I von, Beni, Bolivia, February (W. M. Mann). De- 

 scribed from Villa Nova, Brazil. M. jumicosta Strand is related, or 

 at all events superficially similar, but surely not its male, the wings 

 being so much darker. 



MEGACHILE LENTICULA Vachal 



Female, male. — Riberalta, January; males Cavinas, Rio Beni, and 

 Blancaflor, Beni, January. All in Bolivia (W. M. Mann). I have 

 specimens from Brazil, but Vachal described it from Mapiri, Bolivia. 



In a series the legs of the male will vary from black to red. A 

 description of the male is given here as none is available in English. 



Male. — Length about 11 mm. Rather robust, black, including 

 mandibles, antennae, and legs, but tegulae clear ferruginous; head 

 broad, eyes reddish, face and front densely covered with long tawny- 

 yellow hair; upper part of clypeus with a shining space; cheeks with 

 long dull white hair below; vertex with thin pale hair and some dark 

 hairs intermixed; mesothorax dullish, with very close shallow punc- 

 tures; scutellum more shining; thorax above with very sparse whitish 

 hair, long black hairs on posterior part of scutellum; sides of thorax 

 with abundant long pale fulvous hair, becoming dull white below; 

 posterior face of metathorax shining; wings dusky hyaline, darker 

 apically, nervures and stigma dark; recurrent nervures ending veiy 

 near base and apex of second cubital cell; anterior coxae without 

 spines; anterior tarsi simple, except that both anterior and middle 

 tarsi are fringed behind with long dull white hair; abdomen dullish, 

 with broadly interrupted white hair bailds; keel of sixth segment 

 entire, subtruncate; venter black, with white hair bands. 



In Schrottky's table runs to M. urhana Smith, but differs by the 

 dark anterior tarsi and other characters. 



MEGACHILE FUMICOSTA Strand 



Male. — Huachi, Beni, Bolivia, September (W. M. Mann), Accord- 

 ing to Schrottky's label on a specimen received from him, M. vernoniae 

 Schrottky is a synonym. My specimens are from Puerto Bertoni, 

 Alto Parana. 



MEGACHILE BRASILIENSIS Dalla Torre 



Male. — Cavinas, January, and Ivon, February, Rio Beni, Bolivia 

 (W. M. Mann). This is M. denticulata Smith (name preoccupied), 

 from Rio Tapajos, Brazil. 



