SAKCOPHAGA AND AIJJES 43 



browii-blat'k, ^'e^y hirge, with four large and some 

 smaller bristles directetl baekward and curving up- 

 ward; fifth sternite broad and conspicuous, black, 

 with only a linear fissure, forming a sort of hood for 

 the genitalia in repose; forceps black, smallish, e^'en- 

 ly incurved and tapering in profile, the tips not di- 

 vergent ; hind claspers long and slender, curved ; front 

 claspers heavier, darker and more strongly curved; 

 penis blackish, slender nearly to the tip, which is bent 

 squarely forward and has several small anterior pro- 

 cesses. 



Legs very l)lack; middle femur without combs; 

 middle tibia with an increasing row of three bristles 

 on outer front side; hind tibia not villous. 



Wings yellowish; costal spine very long; third 

 costal segment shorter than the fifth; fourth vein 

 with square bend, either slightly rounded or pro- 

 vided with a slight ap2)endix, ending at a distance be- 

 fore the extreme apex which rather exceeds one half 

 the fifth costal segment; third vein with stout hairs 

 to the crossvein; first vein bare. 



Female. Front .331 of head, with two normal 

 orbitals; second abdominal segment with a pair of 

 erect median marginals; otherwise exceedingly like 

 the male throughout ; genital segment black, retract- 

 ed, with transverse apertin*e. 



Length of male (>, of female .5 mm. 



Five males and one female: one of each sex from 

 Tifton, Ga., Oct. (3, 189(> (Hough coll.); one male 

 from Opelousa, I^a., June, 1897 (ITough coll.) ; one 

 male Alta Loma, Texas, Dec. 29, 1914 (Bisliopp, 

 No. 3.521) ; one male Anglesea, N. .1. (C. AV. Joliii- 

 son) ; the other male Slidell, La., July 2-6, 190.5 

 (Prof. Jas. S. Iline). 



Ilolotypc—Male, No. 20,489, V. S. N. M., 

 from Alta lioma, Tex. 



Allotype.— Feiuale, No. 20489, U. S. N. IM. 



