NO. 1304. REVISION OF AMERICAN GELECHITD MOTHS— BUSCK. 791 



slightly thickened with appressed scales; terminal joint shorter than 

 second, also somewhat thickened with scales, pointed. Forewings 

 ovate, pointed, with very heavy scaling, making them appear propor- 

 tionately broader; 12 veins, 7 and 8 stalked. Hindwings under I, 

 trapezoidal; apex produced; termen so deeply emarginate as to make 

 wing bilobed; (5 veins, 5 and (! absent, 7 to apex cell open between 

 l and 7. 



The larva? are leaf miners; they are flattened, suggesting LithocoUetis 

 larvse of the flat type; abdominal legs on segments 7-10 long, thin, 

 with globular swelling at the end; no anal feet; they pupate in flat 

 cocoons outside the mine. 



Only three species are at present known, but that more remain to be 

 discovered is proven by the supposed type of Gelechia grissefasciella 

 Chambers, in the Museum of Comparative Zoology in Cambridge, 

 which is an undescribed species of Nealyda. 



The described species may be separated as follows: 



1. Dark fascia sharply defined on both sides pimnin', p. 791 



2. Dark fascia not sharply defined toward the base of wing 3 



3. Labial palpi dark; both joints tipped with white hifiddla, j). 791 



Labial palpi light, not tipped with white Hnzelella, p. 792 



NEALYDA PISONI/E Busck. 



Nealyda pisonicr. Busck, Proc. U. 8. Nat. ^NIus., XXIH, 1900, ]>. 229, pi. i, fig. 5.— 

 Dyar, Proc. Wash. Ent. Soc, IV, 1901, p. 470.— Busck, Dyar's List Anier. 

 Lap., No. 5569, 1902. 



Types of male and femah^ are found in the U. S. National Museum 

 (No! 4935). 



Larva makes large trumpet-formed upper mine in leaves of Fixov'ia 

 aculeata. 



ffaUtat.—F&lm Beach, Florida. 



NEALYDA BIFIDELLA Dietz. 



Nealyda bifiddla Dietz, Ent. News, XI, 1900, p. 351, pi. i, fig. 2.— Busck, Proc. 

 U. S. Nat. Mus., XXIII, 1900, p. 228.— Dvar, Proc. U. S. Nat. Mus., XXV, 

 406, 1902.— Busck, Dyar's List Anier. Lep., No. 5570, 1903. 



In the U. S. National Museum is a cotype received from Dr. Dietz; 

 also a large series of perfect specimens bred by Dr. Dyar and the 

 writer from material collected by Dr. Dyar at Salida, Colorado, in 

 .Iuly,'l901. 



The larva works as leaf miner in the identical manner as the two 

 other species, and has the same strange form and development of the 

 abdominal legs; anal legs absent. 



J^ood plant. — AUionla nyctaglnea. 



Habitat. — Colorado. 



