4 PROCEEDINGS OF THE NATIONAL MUSEUM vol.71 



DESCRIPTIONS OF GENERA AND SPECIES 



Genus lESTA Dyar 



lesta Dyae, Proc. Ent. Soc. Washington, vol. 11, 1909, p. 29. — Forbes, Journ, 



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

 Diatraerupa Schaus, Ann. Mag. Nat. Hist., ser. 8, vol. 11, 1913, p. 240. 



(Type guapilella Schaus.) 



Essentially as in Diatraea, differing only in the stalking of vein 10 

 in fore wing. Front flat, smooth. Labial palpi porrect and. down- 

 curved, extending over twice the length of the head. No ocelli. 

 Antennae filiform, somewhat thicker in the male than the female. 

 Fore wing with vein 3 from long before end of cell; 4 and 5 shortly 

 stalked; 6 below apex of cell; 7 at apex; 8-10 stalked from before 

 apex of cell. Hind wing with vein 3 before end of cell; 4 and 5 

 rather long-stalked; the cross- vein inwardly strongly oblique; 6 

 from apex of cell, running close to tlie stalk of 7 and 8, which sepa- 

 rate only near apex of wing. 



The genitalia offer no generic characters to distinguish from 

 Diatraea. 



Male with vinculum elongately triangular. Harpe undivided; 

 elongately triangular; costa with a large, smooth basal projection, 

 excavate beyond, only moderately chitinized. 



Female with ductus bursae short, weakly chitinized in type, more 

 strongly so in other species. Bursa large, elongate; without signum. 

 Ovipositors and supporting rods normal. 



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



Genotype. — lesta lisetta Dyar. 



KEY TO THE SPECIES OF lESTA 



1. Fore wing whitish straw color with two parallel outer lines, discal and 



terminal dots lisetta Dyar (p. 4) 



Fore wing rusty-brown shaded 2 



2. A distinct outer line morobe Dyar (p. 5) 



This line obsolete gaupilella (Schaus) (p. 5) 



lESTA LISETTA Dyar 



Figures 28, 47 



lesta lisetta Dyab, Proc. Ent. Soc. Washington, vol. 11, 1909, p. 29. — Barnes 



and McDoNNOUGH, List Lepid. Bor. Amer., No. 5435, 1917. 

 lesta cancellalis Dtar, Proc. U. S. Nat. Mus., vol. 47, 1914, p. 320. 

 le^a adulcia Dtae, Proc. U. S. Nat. Mus., vol. 51, 1916, p. 37. 



A small species with distinct Diatraea markings ; the larva and life 

 history unknown. We are unable to distinguish cancellalis from 

 Panama or adulcia from southern Mexico and Guatemala from 

 lisetta from southern Florida, and have consequently placed them 

 together as one species. 



