COLIAS II., III. 
It is probable that in some districts, and especially in the more southern States, 
the butterfly also sometimes hybernates, as Ednsa and Hyale are said to do in 
Europe. On 12th December 1873, I saw a male Philodice on the wing at Coal- 
burgh, long after we had suffered from severe frosts and cold weather, and 
when all butterflies seemed to have disappeared. 
In the Can. Ent. VI., p. 92, Mr. Couper notices some peculiarities in Philo¬ 
dice on Anticosti. He says : u I took a few specimens last July. It is a rare 
butterfly on the island, where its habits differ from those found at Quebec. It 
is difficult to capture. Its flight is rapid and continuous during the occasional 
hours of its appearance, and it is only towards the end of July, when the weather 
becomes cold, that it can easily be approached. When it alights on a flower, 
instead of being erect on its feet, it lies sideways, as if to receive the warmth 
of the sun.” 
Mr. Reakirt, in his paper on Coloradan Butterflies, Proe. Ent. Soc. VI., p. 135, 
mentions Philodice as having been taken in Colorado by Mr. Ridings. This 
State was thoroughly explored by Mr. Mead, in 1871, and since that time large 
collections of butterflies have been made by the naturalists of Lieutenant Wheel¬ 
er’s expeditions, and no examples have been taken which can confidently be 
referred to Philodice , though a near related species is found, the same which 
Mr. Reakirt had before him. Mr. Mead agrees with me as to the distinctness of 
this species from Philodice. 
A very interesting Colias was brought from Cape Breton island, in 1875, by Mr. 
Roland Thaxter, and was described by Mr. Scudder in the Proc. Bost. Soc. Nat. 
Hist., Oct., 1875, as a variety of Philodice , under the name of Laurentina. It is 
allied to both Pelidne and Philodice , and, in my opinion, is nearer the former, 
and may have originated in hybridism between the two. But it plainly breeds 
true to its present type, for besides the many individuals taken by Mr. Thaxter, 
it has occasionally been taken on the mainland, as stated by Mr. Scudder. I re¬ 
gard it therefore as a true species, quite as much so as either of its presumed or 
possible parents. 
Although Philodice is figured in Stephens, in Swainson, and in Humphreys 
and Westwood, as having been taken in England, Mr. Westwood remarks that 
“ its claim to be regarded as indigenous is still denied by several of our principal 
Entomologists.” Stephens speaks of five specimens as having been seen by him 
in cabinets, and says that u till last summer, it does not appear to have been 
captured in England for upwards of forty years.” It seems to me not improbable, 
in view of the trade, especially in timber, between Canada and England, that 
chrysalids of this butterfly may occasionally be carried across the sea. In this 
way chrysalids of Cuban butterflies have been brought to New York on sugar or 
molasses hogsheads, as I have verified. 
