1 I ;") 



siil)iiu'(liaii spaci^ : the llmrtli line, f'oniiini: the oiilcr cdirt' <>l tli<' Imnd, niiis 

 straiiilit (though a little ()lili(|ucl\ ) iVoni the costa to the iiiiddli^ ol'thc second 

 median space, and i'roni thence it I'ollows a irenerallv oldi(|iie course, and ends 

 rather near the internal ani.de of the winij ; a!)ov(' the hend in i lie line, tiie 

 scallops are ilatteiu'd, slightly marked: two slight, re-entering, whitish linos 

 cut into the hand just l)elow the costa: helow llie sec(ni(l median space, llur 

 line curves in much less than usual, the line not heing angulated ; the .scallops 

 in the first and second uicdian spaces are alike, and the two largest in the 

 line; the one behind the third median venule is smaller than the one 

 behiiul it; within the band, the two lines f()rm ringlets, as usual, helow the 

 median vein ; a snbmarginal, white;, zigzag, scalloped line, there being two 

 distinct acute triangles just helow th(! costa. and helow isolated while scal- 

 lops opposite the corresponding scallops, those in the second median ami 

 submedian spaces fijrniing distinct Innules; a dark, zigzag, hla(d<, ohlicpie line, 

 succeeded l)y a dark cloud; a marginal l)la(d< line, slightly interrupted i)y the; 

 venules; lring(> whitish, (diecked with dusky scales. Ilind wings whitish, 

 mon; so than usual; a little dusky on the margin, limited within by ;i iliint- 

 white zigzag line, w'itliin which is a dark, distinct, zigzag line, the angles heing 

 sharp; beneath wdiitish, sprinkled with fine brown scales; the i()ur discal 

 dots distinct on the fore wings; an e.xtradiscal is reproduced, and beyond is 

 a ro\v of dark spots, succeeded still beyond by white scallops ; a faint sub- 

 apical cloud. Anterior \rd\r of legs dark, ringed with white; middle and hind 

 pair whitish. Abdomen rather stouter than in P. truncata, the end being 

 square, and terminating in a mucronate point; i)ale ash, with a pair of large 

 black spots on each segment. 



Length of body, <?, 0.52, 9, 0.4.5; of fore wings, J, 0.57-0.72, 9, 0.63; 

 expanse of wings, 1.15-1.53 inches. 



Lake Superior (Harris Coll. Bost. Soc. Nat. Hi.sf); AYhite Mountains, 

 New Hampshire, August 20-30 (Scudder, Shurtleff, Mus. Best Soc. Nat. Hist.) ; 

 Brunswick, Me. (Packard) ; Albany, N. Y., July 25 (Lintner) ; " Nova Scotia " 

 (Walker). 



This species differs from P. truncala in the ape.v being less produced ; 

 in the white intradiscal hand : in the angle of the outer edge of the median 

 band being much less produced ; while the band is nuudi darker, the hind 

 wings are also much paler, and the end of the ahdonnni squarer. From P. 

 prunafa, to whicli it is also cpiite closely allied, it dilfers in the whiter 



