276 THE CANADIAN ENTOMOLOGIST. 



Other species. Both at the time the larva was found beneath a stone in a 

 wall at Cumberland, Ont., and in the box where the pupa was afterwards 

 formed, there were several loose threads of silk over the body and 

 entangled in the spines. 



The chrysalis immediately after formation was of a beautiful semi- 

 translucent emerald green, which later, and by the following morning, 

 changed to a ruddy transparent bronze, washed with olive green. The 

 six gold blotches on dorsum large and conspicuous. General shape of 

 the chrysalis somewhat similar to that of Grapta Interrogationis, but 

 more robust ; rather larger but almost identical in shape with that of 

 Vanessa Cali/ornica, particularly with regard to the outline of the 

 thoracic protuberance. 



The chrysalis formed on 17th June and the pupal period lasted 11 

 days. This would seem to indicate that this species, like all the other 

 Canadian Graptas, is double-brooded, but I never remember to have seen 

 the butterfly flying at Ottawa except in spring and autumn. 



NEW HISTORIES IN HYI)R(ECIA. 



BY HENRY BIRD, RYE, N. Y. 



(Continued from page 234.) 



Hydracia riitila, Gn. 



Tiiis was the next discovery of the season, and as work in former 

 years had never unearthed more than one new larval condition per 

 season, it became evident 1899 was being especially fortunate. We may 

 well say unearthed, as it was actually necessary to do considerable 

 digging to get at these fellows, so far down were they in roots below the 

 surface. The preferred food-plant is Solidago sempervirens, a jjlant 

 particularly local to the Atlantic seaboard, and it was naturally supposed 

 we had to deal with an insect thus restricted in its range. Other things 

 conspired to get ideas rather elevated, for it was not known, of course, 

 before the moth appeared what species the larva might prove. There 

 seemed an unusual feature in that among the numerous stems arising from 

 one root cluster, when one was found infested, there would surely be ttoo 

 examples — no more, no less — found in the bunch. This happened in 

 every case, and occurs so often as to lose the aspect of being any 

 coincidence. Many times but one larva would be found at first ; further 

 searching, however, always disclosed a mate. Burrowing well down 



