634 WILLIAM T. M. FORBES 



104. HOMCEOSOMA Curtis 



Palpi obliquely upturned to level of vertex, or, rarely, shorter and rough-scaled; 

 maxillary palpi slender, normal; male antennae rather thick. Fore wing with R 2 

 free, R s wanting as well as R 4 , M 2 and M 3 stalked or united, CUj and Cu-j approxi- 

 mate and strongly curved; hind wing with discocellular vein straight (fig. 388), 

 a little flattened and widened, normally not lubular, Sc anastomosing strongly 

 with R, its tip often very short; Mj normally shortly stalked, M, and M 3 united, 

 Cu, from cell. (Larva, fig. 396.) 



Key to the species 

 1. Antemedial line indicated by two or three black dots (on R, Cu, and A). 



1. electellum. 

 1. Antemedial line distinct, sometimes interrupted. 



2. Antemedial line practically straight and vertical 2. stypticellum. 



2. Antemedial line sharply angulate 3. mucidellum, reliquellum. 



1. H. electellum Hulst. Powdery light gray, with a white subcostal streak; lines 

 represented by a few darker dots, or obsolete, the antemedial. dots in a vertical 

 series when distinct; at least one dark discal dot present, sometimes both. Termi- 

 nal dots dark, often obscure. 15-22 mm. 



July and August. Larva on buds of Grindelia and in seeds of sunflower. Light, 

 with purple dorsal, subdorsal, and substigmatal lines, twice as wide as the space 

 between them. Pale below; head light brown, with dark lateral band from back 

 of head to eyes. 



Southern New Jersey; Iowa, and west. 



2. H. stypticellum Grote. White, more or less dusted and shaded with gray. 

 Antemedial line white, obscure, erect, followed by a heavy dark gray shade; post- 

 medial line oblique, parallel to outer margin, diffuse but distinct, with a strong 

 transverse dark gray shade between it and the end of the cell; discal dots blackish. 

 Hind wing gray. 20 mm. 



June and July. Larva apparently in the panicles of Khus gldbra. 



Maine and northern Ontario to Costa Rica. New York: Fentons. Ithaca. 



H. anguliferellum Ragonot, an Indian species recorded from North America, prob- 

 ably in error, is similar to H. stypticellum, but with the antemedial shade sharply 

 angled and the discal points well separated. 30 mm. 



3. H. mucidellum Ragonot. Pale powdery gray; antemedial line dark gray, 

 strongly and acutely angled at middle: or represented by three dark gray dots, 

 the middle one much farther out than the other two; postmedial line pale, defined 

 with gray shades, parallel to outer margin. Discal dots distinct, sometimes fused. 

 Hind wing translucent whitish, with darker veins. 20 mm. 



July; September. Larva in heads of Gnaphalium and apparently in chicory seed. 



New York to Florida and west. New York: Ithaca. 



H. reliquellum Dyar, from New Hampshire, appears to be a variety of H. muci- 

 dellum; it has a somewhat less angulate antemedial line, and rather darker hind 

 wing. 



105. EPHESTIA Guenee. 



Palpi upturned beyond vertex, third segment long; maxillary palpi normal; 

 antennae, in our species, simple laminate. Fore wing with R-, from cell; R., and M, 

 wanting, Mj and CUj from angle of cell. Cu 2 arising well before angle. Hind wing 

 with cell short; with middle discocellular short, but decidedly curved, Sc with a 

 very short free tip, R shortly stalked. Wings sometimes tufted. 



The larvae are pests in dried-food products. The four species noted below havo 

 been introduced here and there, from Europe, but E. kuehniella has becon.e very 

 common. 



