1686 THE BUTTERFLIES OF NEW ENGEAKD. 



Accessory sexual peculiarities. The discal stigma of the male has been de- 

 scribed under the wings; the scales contained in it are very slender jointed threads, 

 consisting of seven or eiglit equal joints (.50 : 2 d, f ) ; at the extreme base of the 

 stigma are found some faintly spatulate scales (2 h) , very long and slender, enlarged 

 slightly next the base as well as next the tip, and of other very long and slender 

 nearly equal scales (2 a) ; next these, but still at the base, are found two-pronged rods 

 or scales of two ditlerent types, one rod-like and exceedingly slender (2 g), the other 

 scale-like with very prominent triangular prongs (2 b), together witli some triangular 

 striate scales abruptly truncate at the apex (2 e) ; tbe field below the stigma is filled 

 ■with a mass of oblanceolate scales (2 c), well rounded and produced at the apex, regu- 

 larly tapering from a slender base to the moderately broad tip, finely striate, having 

 the appearance of being broken by fine cross lines, yet giving in certain lights the 

 etlect of converging striae. 



Egg (66:28). Cells .03 mm. in diameter; surface glistening greatly, covered with 

 punctuations, fifty or sixty to a cell, nearly circular, and not more than .001.5 mm. in 

 diameter, irregularly distributed. Color at first very pale green, nearly white; after- 

 wards it becomes profusely mottled on one side, rather sparsely on the opposite, with 

 thread-like dendritic markings of a briglit red color. Height, .58 mm ; diameter, 

 .76 mm. 



Caterpillar. First sUiyc. Head (80:57) black, minute and scabrous, furnished 

 with a few pale, tapering liairs, .08 ram. long; mouth parts blackish. Body white, 

 furnished with long, pale fuscous bristles, .16 mm. long and of equal size throughout; 

 they are slightly curved and seated on fuscous papillae ; the stigmatal bristles are 

 shorter than the others ; the subdorsal bristles terminate on the last segment with a 

 long, somewhat recurved hair, .38 mm. long; spiracles blackish fuscous; dorsal 

 thoracic shield black ; thoracic legs pellucid white and very long, .22 mm. long; the 

 joints, excepting the liasal, slightly fuscous at tip, the terminal joint fuscous exter- 

 nally ; the first pair more or less fuscous throughout; prolegs white. Length, 1.54 

 mm. ; breadth of body, .32 mm. ; of head, .4(5 ram. After eating, the general color 

 becomes of a dusky grimy green and the papillae dark reddish brown. 



Third stage. Head shiulng, piceous, delicately rugulose and covered with delicate, 

 short, brownish hairs. Body rather pale brown, so thickly besprinkled with inky 

 black, minute spots and papillae bearing short, delicate, blackish fuscous bristles, as to 

 give the whole a blackish griseous color; a narrow, blackish fuscous, dorsal line; 

 dorsal thoracic shield broad, equal, black; legs piceous; prolegs concolorous with the 

 body. Length, 5.75 rara. ; breadth, .75 mm. 



Distribution (31: 3). This butterfly appears to be found throughout 

 nearly the whole extent of the Allegiianiari and Canadian faunas. The 

 southernmost localities from which it is known are West Virginia 

 (Edwards), Cincinnati, Ohio, common (Dury), Kentucky (Brit. Mus.) 

 and eastern Kansas, rare (Snow). The latter locality marks also its 

 western extension in the south, and Ames (Osborn) and Davenport, Iowa 

 (Putnam) are as far west as it has been reported in that section of the 

 country. In Wisconsin it is considered by Hoy the most abundant of the 

 skippers. To the north it is found throughout all the settled parts of 

 Canada and has even been reported from Cumberland House on the Sas- 

 katchewan (Kirby), and Moose at the southern point of Hudson Bay 

 (Weir) ; at Ottawa it is vei-y common ; it occurs to the eastward at ^lou- 

 treal,not common (Caidfield), Quebec (Bowles), Nova Scotia (Jones) 

 and Cape Breton (Thaxter). 



In New England it is everywhere the commonest of the Pami)lulidi and 



