108 THE CANADIAN ENTOMOLOGIST. 



Cocoofi : A thin netting of yellowish silk just as m Arac/mis picta. 

 The drops at the joinings of the threads are yellow like little amber 

 beads. 



Fupa : Robust, of normal shape ; on the abdominal segments, 

 dorsally and subventrally are ten rows of large tufts of short spiny hairs, 

 the tufts smaller ventrally and less numerous posteriorly ; cremaster, two 

 tufts of reddish spines from elevated bases. Colour black, reddish in the 

 abdominal incisures ; the body is smooth and dull, the wing cases more 

 shiny, creased. Spiracles linear, reddish. Length 35 mm., width 13 mm. 

 Duration of this stage twenty-eight days. 



Food plants : The larvae run about on the ground or ascend shrubs 

 or small trees and eat whatever conies in their way, if it is not too coarse. 

 My specimens were fed principally on a species of Spurge (Euphorbia 

 cyathophora) and Castor-Bean ( Ricinus communis). 



ENTOMOLOGICAL SOCIETY OF ONTARIO. 



The Geological Section of the Society was formed in May of last 

 year, and at the Annual Meeting in August was regularly constituted a 

 branch of the Society. The members are as follows : — Dr. S. Woolverton, 

 President ; Thos. Green, Vice-President ; J. L. Goodburne, Secretary ; 

 and Messrs. B. Green, W. J. Carson, Alex. Marshall, W. Percival, Geo. 

 Burrell and M. Scarrow. The course of study taken up was Sir Charles 

 Lyell's work, which proved of much interest and benefit. Discussion 

 sometimes waxed exceedingly warm, exception being taken to many of the 

 positions erected by various writers ; this, however, had a good result, as 

 the discussions caused the subject-matter to be well understood by all. 

 Specimens obtained in the district about London were exhibited at the 

 meeting, and much patient research was sometimes necessary in order to 

 identify examples of obscure fossils, not, however, without a few mistakes, 

 which in the main were subsequently set right. 



The members had regular excursions, Friday and Saturday of each 

 week being generally devoted to this — probably the most interesting part 

 of geological study, and not a week passed without some new specimens 

 being placed upon the tables of the entomological rooms. The district 

 around London was well worked up, especially in the vicinity of Spring- 

 bank. In addition to this trips were made to St. Marys and Arkona, 

 many specimens being brought home from both places. 



