Tlir. CANADIAN F.NTOMOLOGIST 89 



pink, dorsal patch Is also present on each of [\\v tliird and Idurth abdominal 

 segments (not segments 4—5 as stated by Dr. Dyarj. The wing-cases are 

 darker green than the remainder of the pupal integument and possess three 

 more or less complete parallel rows of minute white clubbed hairs; the sheaths 

 of the legs and mouth-parts are not very clearly differentiated and are well 

 sprinkled with minute white warts or lenticles, particularly numerous on the 

 eye caps. The tubercular setiie of the larval stage are present, tubercles I and 

 II being situated on the subdorsal ridge and particularly prominent on the 

 pink-coloured segments. The prothoracic plate and the dorsal portions of the 

 other thoracic segments are heavily sprinkled with small white lenticles; these 

 lenticles on the abdominal segments are generally restricted to the area con- 

 tiguous to the tubercular seta^, this area being bounded posteriorly by a row 

 of four or five short white clubbed hairs placed at regular intervals. The cephalic 

 portion of the modified tenth abdominal plate contains a cluster of minute 

 pinkish hairs and the cremaster is composed of a larger cluster of similarly 

 coloured, glutinous hairs. 



Pterophorus homodactylus Wlk. 

 Larva (full-grown). — Head pale greenish ochreous. Body light green with 

 dorsal ochreous line broken in the centre of each segment so that the anterior 

 portion tends to form a short inverted Y, and the posterior portion, commencing 

 as a fine line, thickens into a small elongate diamond-shaped patch, again narrow- 

 ing at the rear of each segment. A broken, subdorsal, ochreous line is also 

 present, situated dorsad to tubercle III and curved downward on the posterior 

 portion of each segment; traces of a spiracular line are present on the thoracic 

 segmicnts. 



The hair arising from the tubercles is long, dull-white and slightly barbed; 

 the normal arrangement of setae on an abdominal segment is as follows: — 

 tubercles I and II are distinct but contiguous; I has four long subequal setae, 

 II bears two similar ones and a further short posterior one, pointing backward. 

 Tubercle III shows one long central seta and two shorter anterior ones, bent 

 forward. On the first seven abdominal segments a single hair on the posterior 

 margin of the segment dorsad to the spiracle probably represents Illa. Tubercle 

 I\' + V is very large and situated directly on the lateral flange; it bears about 

 twelve hairs, mostly long. Directly behind them is a tubercle bearing two 

 medium-sized hairs and two short ones; this is presumably Illb of Dyar. 

 Tubercle \T, below the flange, bears ten to twelve hairs and VII is represented 

 by several hairs at the base of the prolegs. The thoracic segments show the 

 usual modifications: on the mesothorax I + 11 bears three long, subequal hairs 

 and one short anterior hair and on the metathorax this number is increased by 

 a single moderately long hair; both segments show a single hair directly posterior 

 to this group. Tubercle III shows four setae of which the central one is the 

 longest; in line with the abdominal spiracles near the rear edge of the segment 

 is a tubercle which bears one medium hair and one small hair pointing back- 

 Wards (?IIIb). The prothoracic plate is not well defined; two large patches of 

 white hair project over the head; behind these are two long single hairs and 

 on the posterior portion three tubercles, the central one bearing two hairs and 

 each lateral one three. Two large lateral tubercles with numerous hairs are 



