54 PROCEEDINGS OF THE ACADEMY OF 



Descriptions of certain species of DIURNAL LEPIDOPTESA found within 

 the limits of the United States and British America No. 2. 



BY WM. H. EDWARDS. 



1. Argynnis Atlantis, no v. sp. 5. Chionobas taygete, Hubner. 



2. Thecla acadica, nov. sp. 6. Pamphila vema, nov. sp. 



3. " beta, nov. sp. 7. " rurea, nov. sp. 



4. Lycsena neglecta, nov. sp. 8. Hesperia vialis, nov. sp. 



AKGYNNIS ATLANTIS, nOV. Sp. 



Male. Expands 2 to 2| inches. 



Upper side of both wings uniform fulvous, less bright than Aphrodite or 

 Cybele, dusky near base and on costal margin of primaries ; both wings have 

 a broad black hind margin, sometimes enclosing an interrupted fulvous line 

 next anal angle of secondaries ; preceding this band and connected with it on 

 primaries, a series of black crescents, the one next the inner angle geminate, 

 enclosing round fulvous spots which are smallest next apex ; anterior to these 

 a transverse row of round black spots, an abbreviated black band running 

 obliquely back from the costa, and a zigzag band across the middle of the 

 wing ; within the cell three transverse, wavy black bars, the second continued 

 nearly to the submedian nervure, and a fourth bar on the arc, dilated at its 

 lower extremity and there enclosing a dusky space. 



Secondaries have a series of black crescents, not resting on the marginal 

 border as in primaries, the one next the anal angle geminate, a transverse row 

 of small round black spots, and across the middle of the wing a zigzag band 

 ending within the abdominal margin ; in the cell a black band bent like a 

 horse-shoe ; fringe yellowish white, black, with a little fulvous at the inter- 

 section of the nervures. 



Under side : hind margin of both wings dark brown ; disk and inner margin 

 of primaries reddish tawny, costa and apex light buff ; the black markings of 

 upper side repeated, but more delicate ; five silver triangles within the^ mar- 

 ginal crescents next apex, and preceding these on the costa two rounded 

 silver spots on a dark brown ground. 



Secondaries dark red brown, more or less mottled with drab, except the 

 space between the two outer rows of silver spots, which is bright buff and 

 immaculate ; upon the border of hind margin seven triangular silver spots, 

 edged below with black, and above with red brown preceded by another 

 series of seven rounded or oval, the middle one smallest, all edged above 

 with black ; between these and the base are ten silver spots of various sizes 

 and forms, the largest divided by the discal arc ; all these, except the two 

 anterior, edged above with black ; edge of costa next base and whole abdomi- 

 nal margin broadly silvered ; thorax and abdomen above black, covered with 

 fulvous hairs, thorax below reddish grey, abdomen buff ; palpi grey, tipped 

 with fulvous ; antennae black above, fulvous below ; club velvet black, tipped 

 with fulvous. 



Female. Expands 2| to 2^ inches. 



Color above less bright than the male, inclining to tawny ; the black mar- 

 gin very heavy, and the marginal spots next apex of primaries buff, nearly 

 white ; usually a black spot next base of secondaries ; under side of prima- 

 ries bright fulvous ; in other respects as in the male. 



This species seems to be limited to the mountainous districts of the North- 

 ern States and to parts of British America. In the Catskill Mountains, near 

 the Mountain House, I found it abundant the past season, (1861.) I have 

 received it from the White Mountains, from Williamstown, Mass., and 

 from Lake Winnipeg, by Mr. S. H. Scudder, and by Mr. Drexler from near 

 Hudson's Bay. The specimens from the White Mountains and Hudson's Bay 



a 



[Feb. 



