NO. 1935. MUSCOID FLIES FROM SOUTH AMERICA— T0WN8END. 357 



with more or. less of purplish reflection, the fourth segment with a 

 rust-gold tinge in middle, all very thinly silvery pollinose but appear- 

 ing very thickly so in oblique view. Legs brownish-yellowish to 

 reddish, the femora more or less metallic purplish. Wings faintly 

 infuscated with smoky-yellowish along the veins. Tegulse smoky- 

 whitish, deeply smoky on margins. 

 Type.— Cat. No. 15199, U.S.N.M. 



Family SARCOPHAGIDiE. 



SiaTafainily SA.RCOPH^GrlN'^E;. 



SARCOPHAGA AURIBARBATA, new species. 



Sarcophaga auribarbata Townsend, Ann. Ent. Soc. Amer., vol. 4, 1911, pp. 

 129-130, 139 [nomen nudum]. 



Length of body, 10.5 to 14 mm.; of wing, 8.75 to 11 mm. Nu- 

 merous specimens of both sexes, Piura, Peru, indoors and on foliage. 



Head of female wholly densely deep golden pollinose, even includ- 

 ing whole of occiput, only excepting the frontalia dark brown, the 

 facialis brownish and not pollinose or with only a faint silvery bloom, 

 and the tergite of sixth segment, which is brown with silvery bloom, 

 while the facial plate is less deeply golden and sometimes only faintly 

 so. The head of male is sometimes, if not usually, less deeply golden. 

 Antennae and palpi dark brown to blackish. Occiput with more or 

 less deeply golden pile, the beard most deeply golden in both sexes. 

 Humeri deeply golden pollinose, the color running back along edge 

 of mesoscutum to root of wing. Mesopleurse with lighter golden or 

 brassy pollen, rest of pleurae silvery or cinereous pollinose. Three 

 heavy black vittae on mesoscutum, the median one extending over 

 scutellum ; rest of mesoscutum and scutellum silvery- white to silvery- 

 cinereous pollinose. Abdomen marmorate with shining black or 

 brown and silvery-white pollinose surfaces, the pollen thickest on 

 sides and front half of segments, the anal or fifth segment of female 

 reddish and deep golden pollinose, hypopygium of male reddish. 

 Legs blackish, femora more or less pollinose outwardly. Wings clear, 

 tegulse white. 



Type.— Ceit. No. 15200, U.S.N.M. Female, November 2, 1910; 

 TD 3975, /. r. s. 



Cotype, female, June 19, 1910; TD 3900, m., cph. sk. 



Deposits maggots from a double-sac uterus in proximity to food 

 supply or host, being at times pseudoparasitic. 



SARCOPHAGA AURIGENA, new species. 



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

 139 [nomen midum]. 



Length of body, 9.5 to 11 mm.; of wing, 7.5 to 9 mm. Numerous 

 specimens of both sexes, Piura, Peru, indoors and on foliage. 



