46 PROCEEDINGS OF THE ACADEMY OF [Part I 



spots at the origin of Rs and the tip of Sc separate, Sc rather long, 

 extending to about one-third the length of Rs. 



Male. — Length (excluding rostrum) about 6.4 mm.; wing 6.4 mm. 

 Female. — Length (excluding rostrum) 7.6 mm.; wing 8 mm.; ros- 

 trum alone 2.6 mm. 



Rostrum black, in the male type broken, in the females rela- 

 tively short. Antennae brownish black. Head dark brown, the 

 vertex between the eyes more grayish, this color extending back- 

 ward but not attaining the occiput. Mesonotal praescutum reddish 

 yellow with three distinct narrow dark brown stripes; lateral mar- 

 gins of the praescutum infuscated; scutal lobes with the proximal 

 margins dark brown, the median area and the scutellum whitish; 

 postnotum dark brown, somewhat plumbeous. Pleura obscure yel- 

 low; the dorso-pleural region darker. Halteres pale brown, the 

 knobs dark brown. Legs with the coxae and trochanters light 

 yellow; femora pale brown, yellowish basally, darkening to beyond 

 midlength, thence suddenly light yellow, at about midlength of 

 this yellow tip with a narrow brownish black annulus; tibiae light 

 brown, the tips blackened; tarsi light brown, passing into black at 

 the tips. Wings grayish subhyaline, cells C and Sc more yellowish; 

 a rather heavy brown pattern arranged as follows: Base of cell Sc; 

 a broad seam on the supernumerary crossvein in cell Sc; a seam 

 at the origin of Rs, continued some distance down the vein; an 

 entirely separate seam at the tip of Sc; stigma large, subtriangular ; 

 cord and outer end of cell 1st Mi seamed with brown; a cloud along 

 vein 2nd A near its outer end. Venation: Sc rather long, Sci ex- 

 tending some distance beyond the origin of Rs, about opposite 

 one-third the length of Rs; Rs long, slightly angulated near origin; 

 r-m short; cell 1st Mz a little shorter than Mi +2 beyond it; basal 

 deflection of Cui just before the fork of M. Abdomen dark brown, 

 the sternites paler. 



Habitat. — Brazil, Peru. 



Holotype, cf , Yurimaguas, April 16, 1920 (H. S. Parish). 



Allotopotype, 9 , April 12, 1920. 



Paratype, 9 , Teffe, Brazil, January 9, 1920 (H. S. Parish). 



The paratype from Teffe is larger and brighter colored than the 

 allotype but undoubtedly pertains to this species. Geranomyia 

 separata resembles G. insignis Loew and related species, but is 

 readily told by the longer subcosta with the dark marking at the 

 origin of Rs separate from that at the end of Sc. 



Geranomyia cinereinota Alexander. 



1913. Geranomyia cinereinota Alexander, Ent. News, vol. 24, p. 407. 



Teffe, Brazil, December 7, 1919, to February 4, 1920 (H. S. 

 Parish) . 



