138 THOMAS SAY FOUNDATION 



invisible, with dense yellow pubescence all along the 

 inner side. 



Length 5.5-8 mm. 



Ten males; five reared Sept. 8, 9, 10, 1892, from 

 Menanoplus devastator, at Eureka, Cal. (Bureau of 

 Entomology, No. 5485-0) ; one male Aweme, Mani- 

 toba, reared by X. Griddle, July 25, 1813, from Me- 

 lanoplus atlanis. No. 8036; one Milwaukee, Wis., 

 June 26, 1895, collected by Prof. Wm. M. Wheeler; 

 one Algonquin, 111., July 7, 1894, collected by Dr. 

 Nason; one Colorado, No. 2179 (Experiment Sta- 

 tion) ; one Black Hills, S. Dak. 



A female specimen bearing the same label as the 

 lot including the holotype, and probably belonging to 

 this species, is scarcely distinguishable from that of 

 color ad ensis, having the same type of larvipositor. It 

 is teneral, and the diagnostic characters, if any, can- 

 not be positively determined. 



Holotype.— No. 20521, U. S. N. M., from Eu- 

 reka, Cal. 



No. 60. Sarcophaga setigera n. sp. 



Characters like ejjcisa except the following: 

 Front .162 of head. Second abdominal segment with 

 a pair of erect median marginal bristles (one missing 

 in one specimen). Forceps yellow at base, becoming 

 shining black at tip ; outer side quite covered except at 

 base and tip with short recurved spines ; in profile the 

 forceps cur\^e uniformly forward on hind edge, on the 

 front edge more suddenly toward the tip, tapering to 

 a minute hook. They diverge from each other rather 

 uniformly or increasingly from the base. Accessory 

 plate quite narrow and slender, not blackened at 

 apex; posterior clasper long and slender, nearly 

 straight except at the tip, where it bends forward 

 forming a hook; anterior clasper shorter and stouter, 

 rather flattened at tip; penis M^ith an unusually long 

 and stout basal segment, which is yellow; the distal 

 segment in profile much more slender, yellow to the 

 apex; in the back view the distal segment is not di- 



