56 



the abdomen tapering slightly. Witli the exception of the head 

 and first thoracic segment there are on the dorsal surface four longi- 

 tudinal rows of white elevations, each segment having at or near 

 its middle one of these elevations in each row. There are also two 

 rows of similar elevations on each side of the larva. Towards 

 the caudal end of the larva the two middle dorsal rows run to- 

 gether. Other rows of tubercles disappear in the last abdominal seg- 

 ments, leaving fewer white elevations on these segments than on the 

 others. From each of these elevations arises a hair of consider- 

 able length. On or near some of the tubercles of the middle dorsal 

 rows arises a second but quite short hair. Also numerous small 

 hairs on the head, first thoracic segment, and anal segment. Upon 

 the dorsal surface of the head are four very black conspicuous 

 spots and on each lateral surface an indistinct one. Also on the 

 dorsal surface of the first thoracic segment are four similar but 

 larger black spots. Thoracic, abdominal, and anal legs well de- 

 veloped. The thoracic legs have the outer surface almost entirely 

 black and smooth, while the inner surface is gray and furnished 

 with hairs. Abdominal and anal legs of same color as the larva. 



''Pupa. — Length from head to the end of the antennal sheaths 

 5 mm. Breadth at widest part 1 mm. Antennal sheaths ex- 

 tending beyond the anal segment. Head furnished with quite a 

 prominent pointed beak. Two rows of hairs on the dorsal surface 

 and two on each side, the lower row on the sides being made up 

 of two hairs placed close together on each segment. No hairs 

 on the head. Color: brownish yellow, with the exception of the 

 beak, which is black, and the dorsal surface, which is brown or 

 dark brown. The color of the dorsal surface is due to a rout^hened 

 rectangular brown patch on all of the abdominal segments but the 

 last, each patch taking up the greater part of the dorsal surface 

 of the segment upon which it is placed, and extending nearly to the 

 sides and almost to the following segment. These dark patches 

 can be readily seen even in the cast off pupa skin." — Brunn, 

 Second Rep. Cornell Univ. Exp. Station, p. 153. 



Imago. — Dark steel-gray, almost brown. Labial palpi white, 

 each joint tipped externally with dark steel-gray. Antennjie of the 

 general hue, faintly annulate with whitish. Thorax and primaries 

 dark steel-gray, the primaries with about nine faint whitish costal 

 streaks, the first near the base, and the last at the apex, 

 becoming gradually longer from the base to the apex, all faintly 

 dark margined internally, the last three or four nearly perpendic- 

 ular to the costal margin, crossing the wing and nnifing near the 

 dorsal margin, where they are very narrow and indistinct. A small 

 black apical spot, behind which are three dark hinder marginal 

 lines in the cilijie, the first of which is at their base, and becomes 

 furcate in the dorsal cili;t); the second is at the middle; and the 

 third at the apex of the cilise. The one at the base of the cilice 

 becomes furcate at the dorsal ciliae. Al. ex. \ in. Chambers, Can. 

 Ent. vol. v., p. 50. 



