30 PROCEEDINGS OF THE NATIONAL MUSEUM Vol. 78 



Male. — Head as in helicis., but outer verticals developed, face more 

 receding, back of head more bulging below. Thorax also the same, 

 but apical scutellars depressed, not decussate. Abdomen more 

 keeled below, with uniform pollen on venter ; dorsum quite different, 

 the pollen not so glistening and tessellated, a median stripe and 

 vague hind parts of second and third black, pollen elsewhere 

 slightly yellowish. No median marginals on first and second 

 abdominal segments, third with a pair median and two lateral, 

 fourth with marginal row. Fourth reddish in ground color; first 

 genital segment retracted, apparently dark; second genital red, 

 with a row of short bristles near base. Genitalia as in Figure 7. 

 Forceps red to about middle, straight and narrow in back view, 

 diverging a little in middle and coming together again, Claspers 

 black, not unusual ; penis small, stalked, concave in front and with a 

 pair of small processes. Legs black, mid tibia with two bristles on 

 outer front side, hind tibiae not villous. Wing hyaline, costal spine 

 well developed. 



SarcopJiaga xanthopyga, p. 271. 



Male and female, 17 specimens. Is the same as ejfrenata Walker.^'- 

 Sarcophaga conjugens, p. 272. 



Two males. Like the preceding, this is a synonym of efrenafa 

 Walker. 



jSarcophaga stellafa, p. 272. 



Seven males, two females. I spread the genitalia of all the males, 

 belonging to four species. I restrict the species to three males, from 

 Amula, Omilteme, and Mexico City, which are the same as rapax 

 Walker {heUcis Townsend, a common North American species). Of 

 the specimens excluded, one is dehilis, one sun-ubea, and two others 

 are undetermined species but not in suitable condition for designa- 

 tion as types. 



Sarcophaga surruhea, p. 273. 



One male. A second specimen is one of the cotypes of stellafa. 

 Three dorsocentrals, male without villosity on hind tibiae, genital 

 segments red (Group D of Sarcophaga and Allies) ; first vein hairy, 

 tibiae black, first genital segment ordinary; abdomen black except 

 hind margin of fourth segment; penis not flask-shaped (this much 

 runs to couplet 29, Sarcophaga and Allies (p. 116), but it is not my 

 surrubea of couplet 30). It is not hheriata nor anything I have 

 seen. Genitalia as in Figure 8, the rows of spines on the lateral 

 lobes of the penis as figured seem very striking. 



*^Adamsi Hall, Annals Ent. Soc. Amer., vol. 21, 1928, p. 345, figs. 



