240 Butterflies of the Yosemite Valley. [ZOE 
Junonia cenia Hbn.—Very common everywhere at low altitudes. 
Chionobas ivallda Mead. — This butterfly probably reaches a 
higher altitude than any other butterfly found in the locality. I 
only captured one and that was at the base of Mt. Lyell, at an alti- 
tude of about ten thousand feet; but I have received some battered 
specimens taken from the Mt. Dana glacier, at a much higher alti- 
tude. This butterfly is a rapid flyer, being in this respect quite a 
contrast to the rest of the family of Satyrs. _ 
Chrysophanus helloides Bdv.; Chrysophanus arota Bdv.—Several 
of both species seen several times in the Tuolumne Meadows and 
often in company with the following: 
Chrysophanus cupreus Edw. — This beautiful little butterfly is 
quite common in the Tuolumne Meadows, especially in the bare 
and sunny spots on the hillsides. 
Thecla melinus Hbn.— Only one specimen captured, at Lake 
Eleanor, July 27. 
Thecla grunus Bdy. — Quite common on the Eagle Peak trail, 
coming out of the Yosemite Valley. Found about the oak ( Quer- 
cus chrysolepis ). 
_ Thecla eryphon Bdv.—Quite common along the shores of Lake 
Eleanor. : 
Lycena acmon Db.-Hew. — Very common in the lower altitudes 
of the district. 
Lycena battoides Behr.—Only one specimen captured here. | 
Lycena sepiolus Bdv.; Lycena rustica Edw.—Very common in 
the Tuolumne Meadows, especially the former. Found congre- 
gated in great numbers along the margins of streams and ponds. 
Eudamus tityrus Fabr.— Two specimens captured in the Tuo- 
lumne Meadows. 
_ Nisoniades propertius Lint. — Several found in the same region 
as the preceding. 
_ Besides the butterflies given above, I saw many other species 
_ which I did not get near enough to identify. The region as a 
whole is, however, a very rich one for a lepidopterist, and is partic- 
ularly interesting to one interested in geographical distribution. 
Looking at the Yosemite region from this standpoint, one can see 
how similar it is to the rest of the Sierra region north of it. The 
_ only one of the above butterflies peculiar to this one district is Colias 
behrit, the remainder being either mountain forms peculiar to the 
