18 PROCEEDINGS OF THE NATIONAL MUSEUM vol.7] 



Type.—CaX. No. 29429, U.S.N.M. 



Type locality. — Georgetown, British Guiana. 



Food plants. — Andropogon^ Paspalum. 



DIATRAEA GAGA Dyar 



Figure 9 



Diatraea gaga Dyar, Proc. U. S. Nat. Mus., vol. 47, 1914, p. 319. 

 Diatraea soUpsa Dyab, Proc. U. S. Nat. Mus., vol. 47, 1914, p. 319. 



A small species resembling an lesta. Fore wing light pale straw 

 color, a yellowish ray beyond the cell; discal and terminal dots 

 rather large, blackish ; veins strongly lined in brown, but narrowly 

 and without contrast; cross line distinct, strigose, not dotted, round- 

 edly confluent below costa. Hind wing a little touched with brown 

 at apex in male ; white in female. 



Expanse. — Male 13-18 mm. ; female 16-18 mm. 



Male genitalia with tegumen simple (without lateral lobes). Costa 

 of harpe simple. Gnathos slender, with only the faintest trace of 

 sjjines near apex. Arms of anellus smooth. Cornutus absent. Fig- 

 ured from type. 



Female genitalia as in evanescens except for somewhat smaller 

 bursa. 



Abdomen of male with pair of lateral hair tufts on second segment. 



Seventeen males and 12 females before us from various localities 

 in Panama. 



The life history is unknown. 



Types. — In National Collection. 



Type localities. — Corozal, Panama {gaga) ; Porto Bello, Panama 

 {solipsa) . 



DIATRAEA EVANESCENS Dyar 



Figs. 10, 57 



Diatraea evanescens Dyar, Iiis. Ins. Mens., vol. 5, 1917, p. 84. — Forbes, 



Journ. New York Ent. Soc, vol. 28, 1920, p. 224. 

 Diatraea so'brinalis Schaus, Proc. Ent. Soc. Washington, vol. 24, 1922, p. 140. 



A species generally below medium size, sometimes small. Fore 

 wing dull dark wood brown, the veins distinctly darker; a rounded 

 discal dot, but no cross lines. Hind wing in the male almost as light 

 as in the female, a little brownish shaded apically. Front without a 

 tubercle. Hind tibia in the male without a tuft. 



Expanse. — Male, 11-20 mm.; female, 21-30 mm, 



Male genitalia with lateral lobes of tegumen arising from its 

 extreme base, narrow, rounded. Costa of harpe simple. Arms of 

 anellus smooth. Cornutus not distinguishable. Figured from speci- 

 men from Audubon Park, La. 



