296 



SiS 



Prof. Fernaltl records the food plant as Solidago canadoi 

 (Pter. N. A. 16). Dr. Dyar (Psyche VIII, 249) gives a description 

 of the larva and pupa from material taken in Van Cortlandt Park, New 

 York City, and reared on Solidago sp. Dimniock's papers give no fur- 

 ther information beyond some morphological data and the locality 

 Massachusetts. In Dr. McDunnough's paper descriptions, which we 

 quote below, of the full grown larva and of the pupa are given, and 

 a figure of the latter. The larva is here noted as feeding "on the 

 terminal buds of a Solidago species". The descriptions are as follows : 



"Lar\'a ( full-grown). — Head ochreous. Body cylindrical, green, with 

 slightly darker mediodorsal line, due to the dorsal vessel showing through the 

 integument, and containing on each segment centrally a minute black dot ; sev- 

 eral other similar black points are scattered with more or less regularity over 

 the integument, the most constant being a single one midway between tubercles 

 II and HI and another, rather linear in shape, before the spiracle. Subdorsally 

 there is a series of large, brownish, rectangular, chitinous patches extending 

 across the major portion of each segment and containing tubercles I and II 

 which are represented by two long brownish setae, arising from the centre of 

 each patch, very glutinous, swollen irregularly several times during their length 

 and club-shaped at their tips; the posterior portion of each patch contains two 

 minute, whitish club-shaped setae. Tubercle III is represented on the abdom- 

 inal segments by a single long brownish seta, a short anterior whitish one and 

 a mimite posterior hair ( ? Ill a of Dyar). Tubercle IV + V, directly below 

 the spiracle, consists of an anterior shorter and a posterior longer clubbed white 

 seta arising from a brownish base; there are usually also two further minute 

 white clubbed hairs situated respectively on the ventral and on the posterior 

 margins of this dark base. Ventral to the tubercles and on the posterior margin 

 of each segment are generally several minute white clubbed hairs. A single 

 white unclubbed hair arising from a dark base and surrounded by other minute 

 hairs probably represents tubercle VI and two or three small hairs at the base 

 of the prolegs constitute tubercle VII. 



"On the thoracic segments the dorsal setae show some variation from that 

 normally found on the abdominal segments: on the mesothorax tubercle I + II 

 consists of two long setae and one minute white one whilst on the metathorax 

 only a single long dorsal hair is found. On both segments tubercle III shows 

 two long setae. The prothorax has a row of six long hairs along the anterior 

 margin with a second row of six immediately behind these; the dorsal area 

 corresponding to the prothoracic plate is covered with fine, minute, white, clubbed 

 hairs. Ventrad and anterior to the spiracle is a tubercle bearing three hairs. 

 All spiracles pale, brown-ringed. Length 10 mm. 



'The arrangement of tubercular hairs as listed above differs in several 

 points from Dr. Dyar's figure of the fifth abdominal segment of this species 

 (1899, Ent. Rec. XI, pi. I, f. 1) but this is in the main due, I believe, to slight 

 inconsistencv in the number of sm.all white secondary hairs which may occur 



