114 Journal New York Entomological Society. [Voi. iv. 



would also have to be studied from the standpoint of distribution. 

 Nezahualcoyotl is the brevicauda oi phiienor. Do some of these forms dif- 

 fer any more from their nearest allies than the extremes of the vertical 

 distribution of iiiruus ? Take, for instance, the Arctic form or the form 

 from wintering chrysalids in this locality (Philadelphia). I have two 

 females of turnus, one from Philadelphia and the other from Florida. 

 One expands 3 inches and the other 6; the Florida example thus having 

 a greater expanse of 3 inches. They differ as markedly in other ways, 

 the Southern form being a rich orange and the local one almost white. 



I have nothing to say about our species of Parnassiiis, except that 

 I doubt that the true notnion has been taken in North America. 



In Pieris we have ten species, and of these I consider three of 

 doubtful value — nelsoni, virginiensis and occidentalis. The putting 

 virghiensis as a var. of napi and also as a species was probably the work 

 of the printer's devil. Looking at the list and seeing var. vernalis of 

 protodice reminds me of the fact that all butterflies to a greater or less 

 extent differ in the spring or generation from wintering chrysalids, 

 from those produced from eggs of the first, and if seen fit all should be 

 called ver7jalis. Thus the spring generation of the Himalayan Papilio 

 polyctor is called variety vernalis, and properly so, but the spring gen- 

 eration of Pieris occidentalis is called calyce. Would it not be better to 

 call all spring variations the variety vernalis of the different species 

 where the spring generation is different from subsequent broods. Some of 

 the varietal names of species of Pieris are also synonymous of forms 

 found in Europe. For instance, in Alaska we have var. bryonice of 

 napi, of which I believe hulda is a synonym. 



In Anthocharis we have fifteen species. Of these flora, rosa, 

 reakirtii, thoosa, stella, julia, hyantis and tnorrisonii are of doubtful 

 value. Rosa seems to be the same, or at best a var. of olympia. I 

 should say it represented the southern end of the vertical distribution. 

 Reakirtii, I believe, has been proven to be the verfialis of sara. 

 Thoosa is probably the female of cethura. Julia and Stella are slight 

 modifications of var. reakirtii. Flora \s a. distribution modification of 

 sara. Hyantis is probably a brood variation of ausonides. Sara 

 and reakirtii both have interesting dimorphic females, one yellow, the 

 other white. 



In Callidryas, semice will probably be proven to be a synonym of 

 eubule. In Kricogofiia we have four species and a variety, and I be- 

 lieve them to be all one thing. 



In the genus Colias much good could be done by obtaining col- 

 lections from various localities, with proper data. We have in this 



