358 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 43. 



Differs from preceding species as follows: The golden pollen is 

 confined to front of head, the whole occiput being ashy. Beard 

 scanty and faintly brassy, occipital pile very little developed. Pollen 

 of thorax and scutellum same shade as that of occiput, with only 

 a suggestion of brassy on mesopleurse and mesoscutum in female, 

 that of male silvery. The thoracic vittsB are not so heavy, but they 

 are broad and well defined. The abdominal pollen in male is dis- 

 tinctly brassy on fourth segment, less so on sides of third segment; 

 the fourth segment in female is deeply golden pollinose like cheeks, 

 third segment less so, second segment sometimes slightly so. The 

 narrow hind margins of first to third segments and a well defined 

 median vitta are black. 



Type.— Csit. No. 15201, U.S.N.M. Female, March 29, 1911; TD 

 4024, /. r. s. 



Same reproductive habit as preceding. 



SARCOPHAGA ARGENTEA, new species. 



Sarcophaga argentea Townsend, Ann. Ent. Soc. Amer., vol. 4, 1911, pp. 129-130, 

 139 [nomen nudum]. 



Length of body, about 10 mm.; of wing, 7.5 mm. One female, 

 Piura, Peru, November 3, 1910. 



Differs from S. aurigena as follows: Occiput, face, and cheeks 

 nearly concolorous in a gray-cinereous pollen, with at most a faint 

 suggestion of brassy on cheeks. Parafrontals lightly brassy. Tho- 

 racic vittse still weaker and not so well defined, not black, rather 

 brown to dark brown. Abdomen cinereous pollinose, with a faint 

 tinge of brassy, especially on sides and fourth segment. 



Type.— Cat. No. 15202, U.S.N.M. TD 3976,/. r. s. 



Same reproductive habit as preceding. 



SARCOPHAGULA PERUANA, new species. 



Sarcophagula peruana Townsend, Ann. Ent. Soc. Amer., vol. 4, 1911, p. 139 

 [nomen nudum] . 



Length of body, 3.75 to 4.75 mm. ; of wing, 3 to 4 mm. Numerous 

 females, Piura, Peru. 



Face and cheeks silvery, occiput ashy, parafrontals silvery with a 

 more or less distinct golden tinge. Frontalia brownish, pale ante- 

 riorly; antennae pale brownish, palpi pale. Thorax and abdomen 

 cinereous pollinose, mesoscutum with three very faint narrow dusky 

 vittse. Pollen of thorax is more or less silvery, that of abdomen 

 more or less brassy, the latter with usual marmorations. Legs 

 blackish. Wings clear, tegulse white. 



Type.—Csit. No. 15203, U.S.N.M. Female, November 9, 1910; 

 TD 3990, m. 



Same reproductive habit as preceding. 



