150 ZYGMNIDJE AND BOMBYCID^E 



with reddish brown scales, which are thickest inwardly and at the anal 

 angle. There is a reniform spot on the discal vein, dark chocolate 

 near the costa, yellowish inside, and deeply excavate outwardly. A 

 dark spot on the discal area, partly merged into the dark chocolate 

 streak on the costa, which terminates at the reniform spot, and near 

 which it is dusted with blue scales. There is also a dark brownish 

 black spot on the inner margin, united to the outer band, projecting 

 towards the disc of the wing, sharply truncated inwardly and continued 

 along the inner margin but. narrowing rapidly to the base. This spot 

 is also thickly dusted with bluish scales. 



Secondaries pale ochre yellow, with an outer reddish brown mar- 

 ginal band extending to the costa, and inclosing on the outer margin, 

 a paler sinuate line. Inside this band on the inner margin is a dark 

 parallel streak. 



Beneath pale ochre yellow, with the discal spot on the secondaries, 

 and the reniform and circular spots of the primaries distinct and 

 blackish. The marginal band on all the wings is reproduced of a 

 uniform pale reddish brown. 



Expanse 0/ Wings, 1.40 inches; lenglh 0/ body, 0.60 inch. 



Habitat. — Atlantic States. Maine (Packard). New York (Fitch). 

 Middle States. Missouri (Riley). 



Larva. — The larva is said to be similar to that of E, grata, though 

 I have been unable to find any detailed description of it. Dr. Fitch 

 says in relation to it, having raised both the Eastern species from the 

 grape, (3rd Report. Ins. N. Y., p. 399. 1856,) that it "is equally 

 common with the preceding, and the worms are so much alike that 

 we as yet know not whether there are any marks whereby they can be 

 distinguished from each other.'' Another writer states (Proc. Ent. Soc. 

 Phil., p. 43, 1864) that the pup^e of this species were found in winter 

 in the stems of a species of reed (Hibiscus), as though the larvse had 

 been feeding in that location. These two modes of life are so dif- 

 ferent that one might almost be tempted to question the accuracy of 

 one or the other of the observations ; but presuming the latter fact to 

 be correct, it furnishes additional evidence that Eudryas is correctly 

 located among the Castiinas, as against the position assigned to the 

 genus by Dr. Harris among the Notodontidse, which are exclusively 

 external feeders. 



The imago differs from E. grata in its smaller size ; in the band of 

 the primaries being pale and mottled instead of uniform dark brown ; 

 in the absence of the yellowish green tints of the upper wings, and 



