I'lKKIXAK; I'IKHIS OLKRACKA. 1197 



Geographical distribution (26: o). Tliis l)iitterfly i^ a member of 

 the Canadian tauna and also occupies the upper half of the Alleghanian and 

 extends from the Atlantic Ocean to the Koekv ^loiintains, where it has oc- 

 curred in Colorado at Pike's Peak (Peakirt), Kmpire City and above tim- 

 ber (Putnam), Fairplay (Mead), Leavenworth and Georgetown (Scud- 

 der) ; in Utah at Ogden (Janon (Osten Saekcn), American Fork Caiion 

 (Scudder), Suinn)it Canon (Putnam), Salt T>ake (Packard), and Beaver 

 Mountains (Palmer), always above eight tiiousand feet; in New Mexico 

 (Snow), and in Montana at Virginia City (Reakirt). Excepting in the 

 Rocky ^Mountain region, it is rare south of 42° N., though it extends in the 

 east to Statcn Island (Davis), Pennsylvania (Scudder) and West Virginia 

 (Edwards). West of the Alleghanies its southern limits would seem to be 

 about the southern shores of the Great Lakes, where it is reported from 

 Toledo, O. (Kirtland), southern Michigan, common (Harrington), north- 

 ern Illinois ( Worthington), Madison, abundant (Kirtland) and Racine, 

 Wis., to the south of which is "found but little" (Hoy), and Iowa (Par- 

 ker ) . In the interior of the continent north of our boundary it stretches 

 from ocean to ocean and evidently infringes on the Huronian fauna, for it 

 is found from eastern (Packard) and southeastern Labrador (Couper), 

 Anticosti (Couper), Newfoundland (British Museum, Gosse), Cape 

 Breton (Thaxter) and Nova Scotia (Jones), by way of the southeastern 

 shore of Hudson Bay (Drexler), Albany River (British Museum), the 

 Athabasca country (Geifcken), Mackenzie River at 65° N. L. (Kirby), 

 Great Slave Lake (British Museum) and even on the Arctic coast about 

 68° W. (Richardson) to Alaska (Dall) : though perhaps these last may 

 belong to tlie allied Pacific species, P. venosa. Along the southern boun- 

 dary of the Dominion of Canada it is everywhere found, from the southern 

 side of the St. Lawrence Gulf (Couper), by Quebec, Montreal, Toronto, 

 London, Nepigon and Manitoba to Lake Koutenay (Geddes), Lake La 

 Hache (Crotch) and Vancouver Island (Agassiz). 



It is found throughout New England although seldom abundant south of 



o o o 



the annual isotherm of 48°. Northward and eastward it is everywhere 

 abundant and it continues to be so as far south as Williamstown, 

 Mass. (Scudder), Dublin, N. H. (Leonard) and Portland, Me. (Scudder, 

 Verrill). South of 42° N. L. or the northern boundary of Connecticut, it 

 rarely occurs, although it has been taken at Farmington, Conn. (Norton), 

 Newport, R. I. (Miss Coggeshall teste Higginson) and Fire Island Beach, 

 Long Island (Smith). Even in the north, however, there seems to be 

 some local causes for its abundance. Dr. Packard has seen but a single 

 specimen in several years collecting at Brunswick, Me., and Prof. S. I. Smith 

 has "never seen it common at Norway," Me., while it maybe foimd in pro- 

 fusion at Portland, Me. In Milford, N. H. Mr. C. P. Whitney, a collector 

 of long experience, has seen only two specimens, while in the neighboring 



