THE CANADIAN ENTOMOLOGIST. 13 



buff. The larvae measured i 2 inch. The chrysalids were .8 inch long ; 

 the color generally a dull green mixed with pink and white, no where 

 decided ; the wing cases yellow-brown with a faint green tint in parts. To 

 imago 9 days. 



In 1879 I received two half grown larvae of Prague from Prof. C. H. 

 Fernald, at Orono, Maine, and in some respects these differed from all the 

 others I had before seen. After third moult, the general color of body 

 was as in the Vermont larvae, that is, black, banded with whitish lines on 

 posterior parts of the segments ; but the dorsals and first laterals were all 

 pale fulvous, all tips being black ; the second laterals were reddish on 

 anterior segments, gradually running into black on the posterior ones, but 

 the branches always fulvous, the lower laterals sometimes black on upper 

 part ; and every spine on the body rose from a fulvous tubercle. 



At the last stage these larva; were red-buff on segments 3 to 5, and on 



12, 13 ; all dorsals were pale fulvous ; the first laterals on 3, 12, 13 black 

 with fulvous branches ; all others of this row, and all of third lateral row 

 pale fulvous like dorsals ; the second laterals black on 3 and on n to 



13, the rest pale fulvous ; and all tubercles fulvous. One larva died, the 

 other reached chrysalis, and resembled the Vermont chrysalids. 



By this it appears that there is wide variation m the last two larval 

 stages both in color, markings and the appearance of the spines ; so is 

 there in the chrysalis. I had no opportunity of comparing the earlier 

 stages. The Catskill larvae had an excess of black at maturity, with large 

 fulvous patches on the sides, contrary to what was seen in any other 

 larva;. These larvae were of the second brood, whereas all the others 

 observed were of the first, and this may account for the great difference. 



Mr. Roberts found the eggs laid on wild gooseberry and Prof. Fernald 

 took the larvae he sent me from same plant. I found that they eat culti- 

 vated gooseberry and currant readily. They do not fold down a leaf to 

 protecTtheniselves as do the larvae of species of the Comma sub-group, 

 (viz., Satyrus and Comma ; also as does Inlerrogationis) under which these 

 larvae conceal themselves and on the edges of which- they feed until the 

 feaf is too far consumed to afford a shelter, when they migrate to another 

 and bend it in the same way. But Prague larvae lie exposed on the stems 

 or on the Under side of the partly eaten leaf. In the later stages they 

 h,aye a very odd habit of holding, themselves when at rest. The anterior 

 segments arched and turned round at a right angle to the rest of the 

 body, the middle segments bent in, and the last. three segments often 



