304 LEPIDOPTERA. 



the case, and not having much to communicate respecting 

 the habits of individual species, I shall confine my further 

 remarks to a description of the insects in their final state, 

 when they are exposed to view, and attract our notice by 

 their neat and modest coloring, and their graceful and gentle 

 motions. They are mostly found in thickets and woods, and 

 more rarely in places more open and exposed. 



Hipparchia semidea, Say. The Mountain Butterfly. (Fig. 126.) 



Wings dusky brown above, thin, delicate, and almost 



transparent, in the male 

 Fig. 126. paler, and with more of an 



ochre-yellow tint; fringes 

 black, barred with ochre- 

 yellow, and a row of faint 

 ochre-yellow spots near 

 the hind margin of the 

 second pair ; the under 

 side of these wings and of the tips of the fore wings is mar- 

 bled with black and white, a portion of the white forming 

 an irregular band beyond the middle of the hind wings. 

 Expands !& inch to 2 inches. 



This butterfly has hitherto been taken only on the summit 

 of the White Mountains of New Hampshire in June and 

 July. It was observed in great abundance flying about on 

 the top of Mount Washington on the 29th of July last. It 

 has also been seen on the Monadnoc Mountain, and will 

 probably be discovered on the tops of the high mountains in 

 our own State, if looked for at the proper season. It closely 

 resembles the Fortunatus of Lapland, with which I have 

 compared it, and find it to be specifically distinct. Mr. Say 

 was the first describer of it, and it is well figured in his 

 American Entomology. Dr. Boisduval has since re-described 

 and figured it under the name of Chionabas Also.* 



* Icones LrfSpidopt Nouv., I. p. 197, PI. 40, fig. 1, 2, and Lepidopt. Amer., I. 

 p. 222. 



