12 PROCEEDINGS OF THE NATIONAL MUSEUM vor . 71 



very large punctures; sternal region with white hair; second recur- 

 rent nervure joining second cubital cell very near end; legs with 

 white hair, but pale golden on inner side of tarsi; abdomen polished, 

 with fine punctures; hind margins of segments 1 to 5 with linear 

 entire yellowish-white hair bands; sixth segment weakly keeled only 

 on the narrowed apical portion, which is thick and obtuse, not turned 

 upward at end; first ventral segment with white hair in middle and 

 a smooth bare dark red area on each side; segments 2 to 4 with dis- 

 tinct, well-separated punctures, and broad white hair bands; segment 

 5 greatly prolonged at end, spatuiiform, broadly rounded, the broadly 

 truncate end inclined to be emarginate; last ventral segment broad, 

 obtusely pointed, not hairy or notched at side, extending a short 

 distance beyond last dorsal; in profile the end of the abdomen 

 resembles a bird's head, the last dorsal and fifth ventral being the 

 beak, and the last ventral an extended tongue. The under surface 

 of the fifth ventral is weakly keeled and has a gray pruinescence. 



Ivon, Beni, Bolivia, February (W. M. Mann). Described from 

 one female. A very distinct species, probably nearest to C, alaii- 

 formis Friese, but the last dorsal is shaped more as in C. foersteri 

 Morawitz, though the basal part is not so broad and the apical is 

 broader. Also, it is not curved downward as in C. Joersteri. 



Type.— C&t. No. 29083, U.S.N. M. 



COELIOXYS OCULARIS Friese 



Male. — Pongo de Quime, Bolivia, July (W. M. Mann). Remark- 

 able for the exceedingly long brown hair on eyes. It differs from 

 typical C. ocularis (from Guayaquil) by the entirely black mandibles 

 and largely black femora, but the species is evidently the same. 



COELIOXYS LEUCOCHRYSEA Cockerell 



Male. — Reyes, Bolivia, October (W. M. Mann) ; Covendo, Bolivia, 

 August (W. M. Mann). Compared with typical C. leucochrysea 

 from Guayaquil, the upper apical spines of the abdomen are some- 

 what shorter. From C. triodonta Cockerell, also from Guayaquil, it 

 is easily known by the eyes not strongly converging below. 



Genus MEGACHILE Latreille 



THE SPECIES IN THE COLLECTION MAY BE SEPARATED BY MEANS OF THE FOLLOWING KEY 



Females 



Ventral scopa black, pure white on first two segments; hind trochanters with a 



red spot; hair of head and thorax above entirely black atricoma Vachal. 



Ventral scopa orange pyrrhotricha Cockerell. 



Ventral scopa pale, if any black only on last segment 1. 



Ventral scopa mixed black and light 4. 



1. Face densel)'^ covered with yellow hair xantholeuca, new species. 



Face not covered v.ith yellow hair ^ 2. 



