24 PROCEEDINGS OF THE NATIONAL MUSEUM vol.66 



low; fore and middle coxae with a row of black bristles on outer 

 anterior edge, their hairs black. All femora yellow, posterior pair 

 with their tips more or less blackened for one-fourth their length 

 and with a preapical bristle; fore femora with a fringe of reddish 

 hair on lower posterior edge, the longest being on apical half, where 

 the hail's are nearly as long as the width of the femora. All tibiae 

 yellow, posterior pair often brownish-yellow, their tips black, the 

 black shading into the yellow and usually reaching nearly to the 

 base below. Fore and middle tarsi almost wholly yellow; joints 

 of fore tarsi as 52-24-10-9-8; of middle tarsi as 64-32-25-13-8. 

 *Hind tarsi wholly black, their joints as 38-42-31-17-12. Calypters 

 whitish with a narrow black edge and yellow cilia. Halteres yellow. 



Wings grayish, veins yellowish-brown; third vein scarcely bent 

 backward at tip; last section of fourth vein bent distinctly before 

 its middle, parallel with third at tip; last section of fifth vein not 

 quite one and a half times as long as the cross vein. 



Female. — ^Agrees with the male in the characters of the head, 

 abdomen, and wings, except that the third antennal joint is only a 

 little longer than wide, the second joint extends over the upper 

 edge of third nearly to its tip; arista almost as long as the face; 

 the abdomen has very little white pollen ; the first segment is wholly 

 black; second, yellow with the posterior margin very narrowly 

 black ; third, yellow with broad hind margin and median line black ; 

 fourth segment with only a small yellowish spot on each side at 

 lower anterior corner. 



Thorax and scutellum green, considerably dulled with silvery 

 white pollen. Coxae as in the male; hind femora wholly yellow; 

 hind tibiae yellow with apical third black; fore and middle tarsi 

 blackened toward their tips. 



Described from seven males and four females. Two males were 

 taken at Kearney, Ontario, July 3, 1909; one at Lewiston, New 

 York, June 17, 1917; one at Gowanda, New York, June 8, 1913; 

 one at Golden, Erie Gounty, New York, June 7, 1908; one at Kia- 

 mesha. New York; and one from Speculator, New York, June 13. 

 One female was taken at Protection, Erie County, New York, June 

 16, 1918, and one from Newport, New York, June 22. 



r^/;?^.— Male, Cat. No. 27043, U.S.N.M., Kearney, Ontario. 



19. ARGYRA CURRANI, new species 



Male. — Length, 5 mm. Face and front silvery white, the for- 

 mer moderately wide, narrowed a little below. Palpi black, cov- 

 ered with white pollen. Antennae black, first joint nearly as long 

 as third, and with conspicuous hairs above; third joint about twice 

 as long as wide, obtusely pointed at tip; arista nearly apical, as 



