WILLOW LEAF-ROLLERS. 577 



St. Louis, Mo. The larva was not described. The moth is at ouce 

 distiuguislied from the European canqyoUliana Tr. by its pure silvery or 

 satiny-white coloration, uutiuged with yellow. Its general color is 

 that of the European Boarmia rohoraria Schiff, but it is much smaller 

 and is very differently marked. 



Hie moth. — Male. Thorax olivaceous ; iirimaries olivaceous with a pale ochraceous 

 tiuge ; au oblique streak from the middle of the costa couuecting with a broad some- 

 what wavy stripe which extends through the middle of the wiug to just before the 

 apex ; two spots ou iuuer border, one near base, the other (which is larger and more 

 elongate) toward anal angle, and some costal and apical streaks brown-olivaceous ; 

 ocellated spot silvery, the center ochraceous, with two black stripes ; a silvery streak 

 extending obliquely from the costa to the posterior margin ; fringes ochraceousj 

 tinged with fuscous at apex ; secondaries gray, fuscous towards tip; fringes white, 

 dusky at base; under surface of primaries fuscous; the fringes, except at apex, and 

 some costal spots ochraceous ; secondaries gray. Expanse, Id*""". 



46. Tortrix larva. 



This caterpillar occurred August 11 and 12, at Brunswick, Me. It 

 lives between two leaves, the tent or cavity being lined by a slight 

 web. 



Larva. — Head jet black with black cervical shield. Body stout, broader thau the 

 head and shield, gradually tapering behind. Pea-green, color of the leaves ; seg- 

 ments yellowish ou the hind edge. Body with alternate light and dark green stripes. 

 Length, 17™". 



* 47. Tortrix larva. 



This caterpillar was found feeding ou the willow August 15, at 

 Brunswick, Me. 



Larva. — Body thick in the middle, tapering towards each end. Head small, much 

 narrower than the prothoracic segment. Body and head pale grass-green ; clypeus 

 and mouth parts amber-colored. Setiferous tubercles small, incouspicuous, the hairs 

 minute. Length, 15™'". 



4d. The purple willow gracilaria. 

 Gracilaria purpuriella Chambers. 



Late in August (the 20th) we found the caterpillar of this beautiful 

 moth, which had turned over obliquely the tip of the willow leaf and 

 securely fastened it to the under side of the leaf, thus making a trian- 

 gular fold. The worm had eaten the parenchyma from the under (i. e., 

 inner) side, leaving a mass of black castings. The worm soon trans- 

 formed, remaining about two weeks in the pupa state, and the moth 

 appeared September 19, The moth is a very beautiful creature, with 

 a delicate body, wings, and legs. Our example was perfect, and agreed 

 in all respects with Mr. Chambers' description, which is copied below. 

 He did not, however, describe the caterpillar. He remarks that it is 

 closely allied to the European G. stigmatella. 

 5 ENT 37 



