ART. 12 THE FLY GENUS SAECOPHAGA ALDRICH 33 



cheria grouf^ two to the Ravinia^ the other seven to the Oxysarco- 

 dexia. I restrict the species to three males of the last-named group 

 from Amula and one from Atoyac, so indicated in the collection; 

 four females from Amula are presumed to be the same. 



Male. — Runs to taheri in Sarcophaga and Allies (1916, p. 247), 

 differing chiefly in having the forceps close together to tip. Like 

 hakeri., it has a pair of distinct apical scutellars, which do not occur 

 in many of the group. Pollen of head yellow, abdomen with deep 

 yellow pollen on fourth segment, more gray basally. Fifth sternite 

 small, not prominent, yellow, divided into two slightly swollen lobes. 

 Genitalia as in Figure 11. The forceps with an oblique toothlike 

 tip as seen in profile. 



Sarcophaga uncata., p. 277. 



Three males. Excluding one male from Northern Yucatan, 

 which is carldei Brethes {angustifrons Aldrich) and restricting the 

 species to the other two, it is the same as my marginata^^'^ which 

 sinks as a synonym. 



Sarcophaga errabunda., p. 278. 



Seven males. I exclude two specimens of sternodontis (Teapa 

 and Chilpancingo), and one belonging to the Acridiophaga group 

 (Amula) ; the other four are all one species, to which I restrict 

 the species. It is well described and figured by Hall under the 

 name reinhardii.^^ 



Sarcophaga pusiola, p. 278. 



One male, three females. I exclude two females (Tepetlapa. 

 Orizaba) which have the first vein setulose. The male and the other 

 female, both from Mexico City, to which I restrict the species, are the 

 same species described as Ravinia peniculata by Parker.*^ I com- 

 pared a specimen of peniculata determined by Parker. 



Sarcophaga dehilis, p. 279. 



One male, three females. Two of the latter are Sarcophaga rapax 

 Walker, and I exclude them, restricting the species to the others, 

 which are close to rapax but less silvery ; the male shows good geni- 

 talic differences, while the female has the genital segments blackish 

 and pollinose. Genitalia as in Figure 12. Forceps yellow to tip, flat 

 behind, blunt, small. Penis with short stalk, and large, complicated, 

 globose head. A second male of dehilis is found among the cotypes 

 of sfellata. 



" Sarcophaga and Allies, 1916, p. 136. 



*« Annals Ent. Soc. Amer., vol. 21, 1928, p. 346. 



«Proc. Boston Soc. Nat. Hist., vol. 35, 1914, p. 21, figs. 



