SARCOPHAGA AND ALLIES 49 



first vein bare, third with several hairs; third costal 

 segment shorter than the fifth. 



Female. Front .313 of head (average of five, — 

 .289, .307, .309, .329, .330), orbitals present; outer 

 verticals well developed; bucca fully half the eye- 

 height; scutellum as in male; genital segment black, 

 with quite long bristles, orifice rounded ; middle til3ite 

 with three bristles on outer front side ; costa with two 

 spines, one of striking size ; first posterior cell usually 

 closed in or just before the margin, sometimes as 

 widely open as in the two males. 



Length Gl/o-Sl/o mm. 



Two males, Germantown, Pa., July 2, 1904, and 

 May 20, 1905, collected by Mr. H. S. Harbeck. 



Nineteen females: 12 from Germantown, Pa., 

 in summer of 1904 and 1905; 2 from Manahawkin, 

 N. J., Sept. 5, 1909, and July 11, 1910; 3 from Tren- 

 ton, N. J., Aug. 21, 1909, and Aug. 5, 1910 (all from 

 Harbeck; one from Melrose Highlands, Mass., 

 June 1, 1911; and one from "N. Andover Col." 

 Mass., July 16, 1911 (H. E. Smith). 



Holotype.— Male, No. 20,490, U. S. N. M., 

 from Germantown, Pa. 



Allotype. — Female, U. S. N. M., same number 

 and locality. 



HYPOPELTA New Genus. 



(uTTo, below; irekTr], shield) 



Allied to Camptopyga, but differing in liaving 

 no macrocha}ta3 on sides of face and with different 

 genital characters in both sexes. 



Black species with about the usual Sarcopliagid 

 appearance ; the male without orbitals, and with small 

 ocellars and distinct outer verticals; parafacial with 

 row of hairs near the eye below, the loAver ones rather 

 coarse; frontals diverging rapidly below, reaching as 

 far as middle of second antennal joint; third anten- 

 nal joint twice the second, with long, slender arista 

 which is short-plumose for two-thirds its length. Vi- 

 brissge at oral margin, facialia very flat, bare except 



