THE CANADIAN ENTOMOLOGIST. © 223 
apical ciliae purplish brown, dorso-apical ciliae ochreous, streaked with 
purplish brown. Posterior wings and ciliae pale slate color. Abdomen 
purplish-brown. : 
The vertex and anterior wings are very much elongate and narrow, 
and the abdomen is sub-depressed. A/ar ex. 58 inch. 
The larva feeds in the ‘Oak Apple” (gall of Cyrips spongifica, 
Harris.) Head yellowish, body green, dorsum dusky green, with two 
longitudinal whitish lines (which, under the lens, appear to be made of 
small spots.) ‘Two curved black lines on top of the first segment, and 
two black spots on each side of it; eight black spots on each of the next 
three segments, and five on each of the remainder, except the penultimate 
and ante-penultimate. It became a pupa June 7th, and the imago 
emerged June 16th. Kentucky. 
The wings do not differ from Dr. Clemens’ description of Y. /lavivit- 
tellus, but he says: “head, antennae and palpi fuscous.” 
This resembles, but I think is different from VY. (Chetochilus} 
_, contubernalellus, Fitch. 
4. VY. querciella. LV. sp. 
Tongue yellowish, except the basal part, which is brown.  Palpi 
yellowish on the inner surface, brick red, suffused with fuscous on the 
outer surface, especially at the base of the second joint. Antennae pale 
yellowish, the apical half of each joint brown on the upper surface. Face 
pale yellowish, slightly iridescent. Vertex, thorax and anterior wings pale 
brick red, with a pink tinge, the wings sparsely but distinctly dusted with 
dark brown, especially the apical portion, and with nine small dark brown 
dots around the apex. Abdomen ochreous yellow above, brownish 
beneath, with two pale ochreous yellow lines. A/ar ex. over 34 inch. 
Kentucky. 
The mature larva is nearly one inch long; when nearly mature, the 
first segment and head are grayish ferruginous with a tinge of rufous; 
remaining segments greenish, with the posterior margin of each whitish. 
There are two dorsal longitudinal white lines, and one on each side, and 
six to eight black spots on each segment. Before becoming a pupa it 
became bright brick red on top, and pinkish-yellow on the sides. 
(Another instance of the colors of the imago assumed by the larva.) It 
became a pupa June 2nd, and the imago emerged June 11th. 
_ Thisvis, in one respect, a singular insect. It is much larger and more 
robust than the preceding species (Y. guercipominella,) but in all other 
