88 Natural History of the 



the river, it was quite numerous, especially in August and Sep- 

 tember. The last date at which I observed it there, was the 13th 

 September, when it was still abundant, and I then captured a 

 specimen apparently just evolved. I saw several individuals at 

 Grenville, October 14th and 18th, and on my return to Montreal on 

 the 19th of that month it was still rather numerous there. As the 

 larva of this butterfly feeds on various species of Trifolium it is 

 not to be looked for in uncleared districts, and in fact it is only 

 to be seen around clearings and open places, where the clovers have 

 been introduced either by accident or design. 



4. PieWs oZeracea, Harris (Grey-veined White). Described in 

 the " Canadian Nat. and Geol." vol. 2, p. 347. Abundant through- 

 out the whole district. First observed near Grenville, 14th May, 

 and was then numerous in the woods of that township. It con- 

 tinued abundant up to the end of June, but was not seen after- 

 wards till the end of August, when I observed a few worn indivi- 

 duals at Hamilton's Farm. This species also, had the habit of 

 pitching upon the dead fish and offal lying round our camps, but 

 never assembled in any great numbers. 



5. Danais Arcliippus, Fab. (Storm Fritillary.) — Figured and 

 described in the Canadian Nat. and Geol. vol. 2, pi. 6, p. 350. 

 A single specimen, which appeared to have been recently evolved, 

 was seen by myself, flying across the Rouge, a little above Silver 

 Mountain, on the 12th August. The different species of J.rc?e- 

 pias^ which constitute the food-plants of the larva, are sparingly 

 distributed in this district, and accordingly this butterfly is seldom 

 met with. 



6. Satyrus^ Portlandia, Boisd. (Pearly Eye.) First seen about 

 the camp on the south side of Bevin's Lake, Montcalm, on the 

 2nd July, after which it was met with abundantly in the woods 

 along the Bouge as far as Silver Mountain, near which on the 

 6th August, those seen were much wasted, and they soon afte 

 entirely disappeared. The specimens collected agree tolerably ac- 

 curately with Boisduval's figures and descriptions of Satyrus 

 Portlandia. It is figured under the name of Hipparchia An- 

 dromacha, Hiibner, in Say's "American Entomology," vol. 2, 

 pi. 36, and in Gosse's " Canadian Naturalist" p. 246. In the 

 latter work it is spoken of as very rare in the Eastern Townships, 

 and Prof. T. P. Kirtland, says it is among the most rare of the 

 butterflies of Ohio. Being generally supposed to be a southern 

 species, it is not little remarkable that it should be so abundant 



* (DeMs.) 



