156 JOURNAL OP ENTOMOLOGY AND ZOOLOGY 



ing from the stigma dorsad and a less distinct brown line along the 

 ventral margin of the lateral lobe. Gills four in number, pale. The 

 sub-caudal enlargement is provided with transverse rows of fine 

 hairs or delicate spicules, there being about twenty-five of these 

 rows which evidently serve as an aid to propulsion. These rows of 

 hairs are much coarser than in related forms (Hexatoma, about 35 

 rows) . The spiracles are circular, situated at the base of the lateral 

 lobes. The body is provided with numerous long, appressed hairs, 

 A few long hairs or short bristles on the body of which the follow- 

 ing may be mentioned: One on the latero-dorsal margin of the 

 last segment near the base of the lateral lobes; a series of four 

 groups of one or two in each across the dorsal surface of the first 

 three thoracic segments at about mid-length ; a group of two or three 

 long hairs on the sides near the caudal margin of the dorsal seg- 

 ments. 



Described from numerous larvae from Ithaca and Gloversville, 

 N. Y. 



Pupa 



Cephalic crest small, depressed, rather inconspicuous, each half 

 consisting of three setiferous lobes. The breathing horns (Plate 

 II, Fig. 4) are short and stout, red at the base and apex, the portion 

 in between darkened and wrinkled transversely; the enlarged apex 

 is very brittle and easily broken off. The mouth parts are about as 

 in Eriocera (Plate II, Fig. 6) as figured before (1. c, Plate II, Fig. 

 A), but the lobes of the labium are broader and more evenly pen- 

 tagonal. The wing-pads extend to just beyond the tip of segment 

 two of the abdomen; leg-sheaths extending nearly to the base of the 

 fifth abdominal segment; the legs end about on a common level, the 

 outer pair very slightly the longer, the inner pair a little the shorter 

 of the three. 



Sternites with the basal half feebly wrinkled transversely, the 

 caudal half more chitinized and bearing a few weak hairs or slen- 

 der spicules arranged as follows: Segment 7, two small bristles 

 near the base and closer to the middle line; four small hairs near the 

 caudal margin, widely separated. Segments 4 to 6 (Plate II, Fig. 

 7) with a sub-caudal row of rather weak slender hairs, this row 



