1921] NATURAL SCIENCES OF PHILADELPHIA. 6>? 



2nd A is very long and narrow, widened distally; the two Anal 

 veins run parallel for the greater part of the length of the 2nd. Ab- 

 domen broken. 



Habitat. — Peru. 



Holotype, Sex?, Yurimaguas, April 6, 1920 (H. S. Parish). 



Genus EPIPHRAGMA Osten Sacken. 

 1859. Epiphragma Osten Sacken, Proc. Acad. Nat. Sci. Phila., p. 23S. 



Epiphragma fabricii Alexander. 



1913. Epiphragma fabricii Alexander, Proc. U. S. Nat. Mus., vol. 44, 

 p. 536. 



Iquitos, Peru, March 9 to May 6, 1920 (H. S. Parish). 

 Yurimaguas, Peru, April 10, 1920 (H. S. Parish). 



Epiphragma vaiia (Wiedemann) 



1828. Limnobia varia Wiedemann, Aussereur. zweifl. Ins., Thl. 1, p. 573. 



Teffe, Brazil, January 28, 1920 (H. S. Parish). 

 Yurimaguas, Peru, March 31, 1920 (H. S. Parish). 

 Napo River, Peru, June 16, 1920 (H. S. Parish). 



Genus PSARONIUS Enderlein. 

 1912. Psaronius Enderlein, Zool. Jahrb., Abt. Syst., Bd. 32, H. 1, p. 50 



Psaronius obscums (Fabricius) 



1805. Tipula obscura Fabricius, Syst. Antl., p. 27. 



Igarape Assii, Brazil, January 29, 1912, to February 4, 1912 

 (H. S. Parish). 



Psaronius pallipes Alexander. 



1920. Psaronius pallipes Alexander, Ent. News, vol. 31, p. 73. 



Known only from the types, taken at Prat a, Brazil, June 30 and 

 July 5, 1919 (H. S. Parish). 



Psaronius pygmaeus Alexander. 



1914. Psaronius pygmaeus Alexander, Trans. Am. Ent. Soc, vol. 40, pp. 

 249, 250. 



Obidos, Brazil, September 6, 1919 (H. S. Parish). 

 Yurimaguas, Peru, April 1, 1920 (H. S. Parish). 



Psaronius trianguliferus sp. n. 



General coloration yellowish brown, the mesonotal praescutum 

 with three darker stripes, the lateral ones incurved to the median 

 stripe at their anterior ends, femora with a narrow, dark brown 

 subterminal ring, wings brownish yellow, the veins broadly seamed 

 with grayish; cell 2nd Ri elongate-triangular, veins Ri and R2 being 

 subcontiguous at their distal ends. 



Female. — Length about 16 mm.; wing 11.5 mm. 



Rostrum and palpi dark brown. Antennae with the scapal seg- 

 ments obscure yellow, the basal segments of the flagellum brownish 



