6i 



Food plant. Lupinus of various species, chiefly L. arbor- 

 acats, Sims. San Francisco to San Jose, common. Changed to 

 chrysalis May 26. Imago emerged June 6. Chrysalis. Pitchy 

 brown shining, with a few short bunches of hairs on sides of mid- 

 dle segments. The chrysalis is oblong oval, and is enclosed in 

 a yellowish drab cocoon, closely spun, and composed of the paler 

 hairs of the larva, with a few black ones intermixed, the paler 

 ends of these hairs being always nearest the surface. The chry- 

 salis is indistinctly seen through the web. 



Imago. 



" Forewings banded with fuscous, paler at the base with white 

 spot at anal angle; hind wings reddish fuscous." Boisduval, 

 Lep. de la Calif, p. 28. 



The primaries in this species are decidedly a rich brown, 

 slightly paler at the base, and with a grayish reflection when 

 viewed obliquely. The white spot on inner angle is very dis- 

 tinct, and in the centre of the wing is a grayish space reaching 

 to the costa, and in some specimens very pale and distinct. The 

 usual lines are all very clearly defined. The secondaries are red- 

 der than the upper wings, and are concolorous with the abdo- 

 men. 



Exp. wings, I.I 5 inch. 



Orgyia gulosa. Hy. Edw. n. sp. (?) 



Larva. Full grozun. 



Ground color, as in O. vetiista, velvety black. Head jet 

 black, without the yellow frontal line, and with the mouth parts 

 dull yellow. 2d segment with the usual complex series of black 

 hairs. Between them are two dark brick red tubercles. 3d has 

 two orange central tubercles, and two brick red ones on the 

 sides. 4th has black central tuft, with two brick red tubercles 

 on each side of it. 5th, 6th and 7th, have each a white central 

 tuft, with two brick red tubercles on each side, 8th, 9th, and 

 loth, each with six brick red tubercles, nth, has a central tuft of 

 black hairs, directed posteriorly, with two brick red tubercles on 

 each side. 12th has only two brick red tubercles. Anal segment 

 black. From the base of all the red tubercles arise bundles of 

 black and white hairs, almost wholly white on the sides. Between 

 the 7th and 8th segments are some bright orange dashes, which 

 marks are also indistinctly seen on the anterior segments. 



Length, 0.60 inch. 



Food plant. Quercus, of various species. 



Contra Costa Co., Cal., abundant, extending through the 

 foothills of the Coast range as far as Shasta. 



Imago. 



The differences in the perfect condition of these two forms, 

 appear to me as follows : O. gulosa is always much smaller than 

 O. vetusta. The white spot near the inner angle is less distinct, 



