HYMENOPTEEA— APIDAE.— PANUBGUS .ETHIOPS. 723 



c? . — Very different from 9 , the body being clothed with a brownish- 

 ochraceous pubescence, paler on the face; apical joint of antennae enlarged 

 and much flattened; legs shining; anterior tibise and tarsi fringed behind 

 with long, ochraceous pubescence ; intermediate femora much swollen, pro- 

 duced beneath into a sharp, bisinuate edge, their tibise short, simple, their 

 tarsi long, slender; posterior femora clavate, being swollen at tip, their tibire 

 short, triangular, flattened, undulate beneath, the apex beneath dilated and 

 truncate or subbilobate, their tarsi slender, nearly as long as the femora and 

 tibiae together; first joint very long, longer than the remaining joints 

 together; wings as in 9 ; abdomen narrower than in 9, more convex above, 

 the depressed apical margin of the segments testaceous; all the segments 

 above covered with a short, brownish-ochraceous, sericeous pubescence; 

 venter flat, smooth, and shining-. Length, 8 1 - lines. 



5 c? 9 specimens; Colorado, New Mexico; Dr. H. C. Yarrow, Dr. Oscar 

 Loew, W. Gr. Shedd. This is congeneric with heteropoda, Say ; the males of 

 both species having the apex of antennas dilated and flattened, and the same 

 formation of legs. I therefore separate them from our other species under 

 the generic name given above. The jV. ? apacha, Cress., of which the 9 onlv 

 is known, and which resembles the S of marginipennis very closely in color, 

 also belongs to this genus. 



101. MEGACILISSA YAEEOWI, sp. nov. 



9. — Black; head, thorax, legs, and basal segment of abdomen clothed 

 with a rather long, dense, ochraceous pubescence; wings subhyaline, dusky 

 beyond the cells; apical margin of second, third, and fourth segments of 

 abdomen with a narrow continuous band of white pubescence ; two apical 

 segments entirely black: venter with ochraceous pubescence; four anterior 

 tibise and all the tarsi black. Length, 9 lines. 



2 9 specimens; New Mexico; Dr. H. C. Yarrow. 



102. PANUEGUS? .ETHIOPS. 

 Panurgus wthiops, Cress., Trans. Am. Eat. Soc, iv, 259. 



1 <? specimen; New Mexico; Dr. H. C. Yarrow. 



