WILLOW CATERPILLARS. 563 



margin, making the usual " " as iu the allied species. The fourth line is slightly 

 S-shaped in its costal third. Outside the fourth line is a subtermiual, somewhat zigzag 

 row of black spots, some of which are often faint or obsolete. In the discal cell there 

 is usually a faint oblique line that seems to be a continuation of the third line, though 

 it does not reach the costa, and the end of the cell sometimes appears like a short 

 liue. There are three oblique shades of brownish olive, more or less distinct, that 

 cross the wing parallel to the second line; the first, beginning on the costa inside 

 the basal line, faintly borders that line to the submedian vein, and is seen below that 

 vein on the third line; the second, outside the second line through its whole course, 

 is darkest next the line ; the third from both sides of the fourth line to the middle of 

 the outer border faint, except along the line. Just outside the S-part of the fourth 

 liue are three grayish-yellow spots with a few reddish-brown scales. Hind wings 

 pale smoky gray with a faint whitish line from the fourth of the forewings to the 

 anal angle. Beneath, the forewings are about the color of the hind wings above, 

 pale along the costa and terminally ; the hind wings are paler with a dark transverse 

 line. (French, Can. Ent., xiv, p. 33.) 



13. Euclea panulata (Clemens). 



This caterpillar has been found feeding on the willow September 19, 

 by Professor French, who states that it pupated September 30 in the 

 manner usual to the genus, the moth appearing June 17. 



Larva. — In general outline somewhat elliptical, the sides and the back tapering 

 from the middle to both ends. Length when full grown, .56 inch ; width and 

 height, in the middle, nearly .25 inch. Back dull purplish brown. A fine dorsal 

 line and a broader one on each side, which alternately expands and contracts, of dull 

 purplish orange. On each joint, except the twelfth, is a pair of impressed spots, 

 which appear whitish when seen in certain lights. A subdorsal orange ridge with 

 spiny tubercles which are concolorous with the ridges, except that between the 

 last two there is a shorter black tubercle without spines ; the second and third from 

 «ach end of the body are larger than the others. A similar tubercled ridge is found 

 in the region of the stigmata, except that it does not contain any black tubercles. 

 Subdorsal space dull purplish orange, bordered above and below with purplish 

 brown, each joint containing two whitish impressed spots similar to those on the 

 dorsal space ; below the lower line of tubercles dull orange. (French.) 



Moth.— Body dark reddish brown. Forewings dark reddish brown along all the 

 borders, with a large, central pea-green patch, extending from the base of the wing 

 to the subteriniual portion, bordered narrowly on the inner side and behind with 

 white, and deeply indented opposite the middle of the inner margin, where there 

 is a bright brown patch in the reddish-brown border. Hind wings yellowish brown. 

 (Clemens.) 



14. Noiodonia stragula Grote. 



(Larva, PI. v, fig. 1.) 



This singular caterpillar was found August 25, at Brunswick, Me., 

 by Mr. fl. H. Wilder. It has the peculiarity of raising and depressing 

 the two large dorsal horns in the middle of the body ; when at rest 

 they are depressed, appearing simply as humps ; when erect they are 

 somewhat larger and evagiuated, with their pseudojoints like those of 

 a telescope ; probably they serve to frighten away ichneumons. My 

 specimens molted for the last time August 31. 



