114 Journal New York Entomological Society. [voi.iv. 
would also have to be studied from the standpoint of distribution. 
Nezahualcoyotl is the brevicauda of philenor. Do some of these forms dif¬ 
fer any more from their nearest allies than the extremes of the vertical 
distribution of turnus ? 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 Parnassius, except that 
I doubt that the true nomion has been taken in North America. 
In Pier is we have ten species, and of these I consider three of 
doubtful value— nelsoni , virginiensis and occidentalis. The putting 
virginensis 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 vernalis. 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 ver?ialis 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, 
reakirtu , thoosa , stella , julia , hyantis and morrisonii 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 vernalis of sara . 
Thoosa is probably the female of cethura. Julia and stella are slight 
modifications of var. reakirtu. Flora is a distribution modification of 
sara. Hyantis is probably a brood variation of ausonides. Sara 
and reakirtu both have interesting dimorphic females, one yellow, the 
other white. 
In Callidryas, sennas will probably be proven to be a synonym of 
eubule. In Kncogonia we have four species and a variety, and I be¬ 
lieve them to be all one thing. 
In the genus Cohas much good could be done by obtaining col¬ 
lections from various localities, with proper data. We have in this 
