NO. 22C4. BEES IN THE NATIONAL MUSEUM. 3—COCKERELL. 189 



the hind margins of abdominal segments not testaceous, and the dark 

 wings. 



Type.— C^t. No. 21651, U.S.N.M. 



CENTRIS LINEOLATA Lepcletier. 



" On Aster " ; Kio Mato, Caiira district, Venezuela (M. A. Car- 

 riker) . The hair of the thorax above is bright fox red. 



CENTRIS PACHYSOMA, new species. 



Female. — Very robust, length, 23 mm.; anterior wing, 17.5; hair 

 of thorax above dusky fulvous, paler posteriorly ; tegument of thorax 

 and abdomen (except extreme apex) wholly black. Mandibles 

 largely yellow, strongly curved apically; labrum pale yellow, with 

 a large pale brown spot; hair of labrum light golden, a long tuft 

 at apex; cl3'peus with lower margin broadly rufous, inferior lateral 

 areas very broadly yellow, the yellow interrupted in the middle line, 

 disk with a longitudinal smooth raised yellow band; scape with a 

 yellow stripe; anterior and middle knees with yellow spots; tegulae 

 ferruginous; wings dark fuliginous; scopa of hind legs entirely 

 black; hair of apical part of abdomen pale, beginning on middle of 

 fourth segment, that at extreme apex red. The lateral face-marks 

 are triangular (very broad cuneiform). 



Palcazu, Peru (Rosenberg). I do not describe this in greater de- 

 tail, since it agrees in all respects with the description of C. lineolcita 

 Lepeletier. I should have referred it to lineolata Avithout any ques- 

 tion, except for the fact that according to Friese the female of that 

 species is only 18-19 mm. long, and the additional circumstance 

 that I have been able to recognize as lineolata a different insect from 

 Venezuela, the type locality being " Cayenne." 



Type.—C^i. No. 21652, U.S.N.M. 



CENTRIS FUSCIVENTRIS Mocsary, variety CAURENSIS, new Tariety. 



Male. — Length about 22 mm. Clypeus with a pair of large quad- 

 rate yellow patches, their margins suffused ; lateral face marks small 

 and obscure, between clypeus and eye; hair of lower part of cheeks 

 rusty black; tegulae black, with a large dull reddish spot; second 

 abdominal segment with a dark red suffusion on disk; scopa of hind 

 tibiae and tarsi, and hair covering hind knees, light fulvous; apical 

 joints of tarsi mainly chestnut red. Scutellum shining and bigibbous. 



Rio Mato, Caura district, Venezuela, October, 1909 (M. A. Car- 

 riker). Superficially this looks exactly like Epicharis rustica 

 (Olivier), except that it is somewhat more robust. 



Type.— Cat No. 21653, U.S.N.M. 



CENTRIS FUSCIVENTRIS, variety MATOENSIS, new variety. 



Male. — Length about 23 mm., like variety caurensis., except as fol- 

 lows: Face-markings obsolete, their place indicated by a reddish suf- 



