288 THE BUTTERFLIES OF NEW ENGLAND. 



the discal spots . . • which become confluent with the submarginal spots " 

 (Can. ent., 16, 236). This would seem to be more like suffusion pure 

 and simple than the slightest approach toward any other existing form in 

 the genus. 



Enemies. The late Mr. C. A. Shurtleff obtained a small y-reen and 

 bronze chalcid from the chrysalis of this species on July 1 1 , but it has not 

 been determined. 



Desiderata. In order to determine its northern limits in New England, 

 search should be made for this butterfly particularly between the 43d and 

 44th degrees of latitude and also along the whole sea-coast, at least as 

 far as Grand Menan. All observations on the appearance of the imago 

 in the early spring should be recorded in order to settle the question of its 

 possible hibernation ; and nearly or quite all the desiderata noted under 

 the previous species are also applicable here ; this species more than either 

 of the others is likely to have a history similar to that of the Euro- 

 pean Nymphalis, and careful search should be made to determine whether 

 any of the summer brood of larvae stop eating and hibernate. Mr. 

 Edwards claims that the second brood of butterflies is a superfluity as it 

 were, and that the eggs are always immature in the female of this brood ; 

 or that if by chance any were laid there would not be time before frosts 

 for the caterpillar to reach the hibernating stage. Direct experiment and 

 observation on this point are much to be desired. Fresh females found 

 during August should be placed with males over their food plant ; if eggs 

 were laid they should be guarded from birds and parasites, but left out of 

 doors in otherwise natural conditions ; if no eggs are laid, the condition of 

 the ovaries should be determined by dissection. Parasites should be 

 sought. 



LIST OF ILLU8TBATI0NS.-BA8ILABGHIA AS TY AN AX. 



