206 ENTOMOLOGICAL NEWS. [May, ’08 
sometimes earlier and is on the wing until June and the earlier 
part of July. This varies, of course, according to the locality. 
In Colorado it appears in May and June, and in Montana we 
have taken newly emerged specimens as late as July. In the 
high Sierras it flies until the end of July. 
The flight of ausonides is much similar to that of congeneric 
species. It flies but a few feet above the ground, in a some- 
what zigzag, aimless course, alighting only on flowers. It was 
probably for this reason that the name Anthocharis* was given 
to the genus by Boisduval. When alarmed, however, its 
erratic flight makes capture difficult. Little has ever been writ- 
ten of the preparatory stages of ausonides. Mead found the 
eggs and larve in Colorado and Edwards} has figured the 
egg, larva and pupa and described the mature larva and pupa. 
Beutenmiiller has briefly compiled a description of the larva 
and chrysalis and Hy. Edwards, in the Proc. Cal, Acad. 
Science, v. 5, p. 326, describes the larva from Mead in litt. 
In a letter to W. H. Edwards, Mead writes: “At Turkey 
Creek Junction there were many eggs and some larvae to be 
found, the latter feeding on the flowers and seed vessels of a 
cruciferous plant. The eggs were long, ribbed longitudinally, 
and in color light yellow. The larvae are solitary, and are 
seen stretched at length on the stem or seed-pods of the plant.” 
The transitional stages of the larva have never been described. 
At first, we had some difficulty in finding the eggs but a little 
experience made it easy. The egg-laying habits are much simi- 
lar to those of allied species and agree well with olympia, the 
life-history of which was recently described by Shullt. Our 
first record of oviposition is March 14, but this is perhaps 
a little earlier than usually occurs. The eggs are mostly 
placed on the sepals of the young inner buds of the plant and 
also quite commonly on various parts of the pedicel, especially 
on the rachis. In a few cases we have observed the female 
ovipositing on the leaves. The illustration shows the normal 
position. We have never seen a female lay more than one 
* AvOos (anthos), a flower, < and Xafpew (chairein), to delight in. 
7Butt. N. Am. Vol. II, pl. 2. 
tEnt. News, Vol. XVIII, 1907. 
