No. 2305. ON SOME FOREST LEPIDOFTERA—HEINRICH. 69 



broadening caudally, smolcy brown on dorsum, growing paler on sides 

 until it is same color as the body of the larva; other chitinized areas 

 not pigmented, tubercles weak, uncolored; hairs short and whitish; 

 spiracles minute, uncolored. Plead dark brown, almost black on 

 dorsal surface; ventral side yellow; mandibles brown, black at the 

 tips; labrum dark smoky brown, almost black; ocellar pigment con- 

 tinuous, black. 



Family BLASTOBASIDAE. 



EUBOLEPIA GARGANTUELLA, new species. 



Plate 6, fig. 34. 



Palpi whitish gray sprinkled with dark fuscous; under side of second 

 joint near base almost black. Antennae gi*ay; pecten of basal joint 

 yellowish. Face gray sprinkled with fuscous. Head black with a 

 few grayish scales toward sides. Thorax grayish with black shadings 

 on the forward part. Fore wings gray faintlj^ dusted with fuscous, 

 giving them a pale slate colored appearance; near the extrem.e base of 

 the wing behind the basal tuft an indistinct black cross band, broadest 

 on dorsum; at the middle of the wing from just below the costa, ex- 

 tending diagonally to the middle of the cell, a peculiar and conspicu- 

 ous, constricted, trident shaped, black marking; near the apex of the 

 cell a black spot; in some specimens a line of 3 or 4 black dots on 

 apical fifth of costa; 3 or 4 similar dots on termen; cilia bluish gray 

 shading to gi-ayish ochreous. Hind wings smoky grayish fuscous; 

 cilia slightly paler. Abdomen grayish fuscous above; under side gray- 

 ish. Legs grayish, more or less marked with black; trocanter of fore- 

 legs black-scaled at outer extremity only; fore and mid femora heavily 

 black-scaled; fore and mid tibiae banded on the outer sides with black; 

 hind tibia gi-ayish with a patch of black scales at base. Male geni- 

 talia of type figured. Alar expanse, 17-25 mm. 



Hahitat. — Brush Corral, Arizona. (Edmonston and Hofer.) 



Food 'plant. — Quercus, species. Moths reared under Hopk. U. S. 

 No. 12182 from larvae boring in large woody cynipid galls on branches 

 of twigs of white oak. Moths issued during latter part of April and 

 early in May, 1915. 



Type.— Csit. No. 21810, U.S.N.M. 



A very striking species easily recognized by the black trident shaped 

 marking on fore wing. It is quite different from anomalella Dietz — ■ 

 the only other species listed under this genus. The male has the 

 antennae deeply notched above the basal joint. Fortunately, though 

 the male genitalia of the Blastobasidae are nearly uniform in size and 

 structure, they offer reliable characters for the ready separation of 

 species. 



The larva is sordid white with the entire dorsum of the body smoke 

 colored; ventral and lateral sides of prothorax and intersegmental 



