HENRY J. FRANKLIN. 169 



mens came from Peru (Marcapata) and the other from Ecua- 

 dor. The species was named for Dr. H. v. Buttel-Reepen. 



Pile rather long and fine. Malar space rather short. Head and 

 thorax ivith dark cinereous pile. Dorsum of abdomen ferruginous at 

 base, dark in middle and mostly white at apex. IVittgs rather light. 

 Legs mostly black. 



Queen . — Unknown . 



Worker. Head. — Pile on face, occiput and sides behind eyes all dark 

 cinereous. Malar space distinctly shorter than its width at apex, 

 about one-sixth as long as eye. Clypeus sparsely, but rather coarsely, 

 punctate. Ocelli almost touching supra-orbital line ; the lateral ones 

 distinctly nearer to the margins of the eyes than to each other. Third 

 antennal segment longer than fifth, the fifth longer than the fourth. 



Thorax. — Dorsum, pleura and even the sides of the median seg- 

 ment clothed with dark cinereous pile ; the very center of the disc 

 naked, smooth and shining. 



Abdomen. — Dorsum : segments one and two clothed entirely with 

 ferruginous pile ; segment three with its basal portion clothed with 

 »ntirely ferruginous pile and its apical portion mostly black with a 

 slight admixture of ferruginous hairs; segment four mostly black, but 

 with its apical margin fringed with white hairs ; segment five thinly 

 clothed with white pile ; segment six dark in middle, but thinly clothed 

 with white pile on extreme sides. Venter mostly dark, but with the 

 apical fringes of some of the apical segments tending to be pale. 

 Neither epipygium nor hypopygium with median carina. 



Wings. — Only moderately infuscate ; the fore pair slightly lightest 

 across their middle portions. Transverse median vein of fore wings 

 coalescent at base for a short distance with the base of the discoidal, 

 but, aside from this, as in Bombus. 



Legs. — The fore coxae, trochanters and femora, and the middle and 

 hind coxae and trochanters and the lower sides of the very bases of the 

 middle and hind femora largely clothed with more or less cinereous 

 pile ; the middle and hind femora and all the tibiae with mostly dark 

 brown or black clothing. 



Male. — Unknown. 



Dimensions .—'Length, about 12 mm. ; spread of wings, about 27 

 mm. ; width of abdomen at second segment, about 6 mm. 



One of the specimens before me is from Bolivia (Bella 

 Vista — Yungas), and the other two, received from Friese 

 and determined by him, are from northern Peru (Huancab- 

 amba — 9,700 feet altitude). 



Possibly this species is only a variety or subspecies of 

 ecuadorhis. The cinereous pile of the head and thorax is 



TRANS. AM. ENT. SOC. , XXXIX. (22) 



