40 LEPIDOPTERA OF NORTH AMERICA. 



to the anterior edge. Secondaries having also a very narrow- 

 border, running about two-tbirds round them, and stopping at the 

 abdominal edges. Some long yellowish hairs are placed on the 

 anterior edges near the body. 



Under side: palpi, sides, breast, ash colored. The dark brown 

 borders surrounding the wings appear on this side orange brown ; 

 the rest as on the upper side ; margins of the wings entire. 



Te.yas. 



Westwoou's Dki'ry. 



Fam. Y. NrMPHALIDAE. 



Larva cylindric, spinose the whole length, or only on the 

 head. Chrysalis variable. Perfect insect; palpi usually close, 

 elevated, very scaly ; the anterior face of their first two 

 articles nearly as wide or wider than their sides. Abdominal 

 edge of the secondaries forming a deep groove to receive the 

 abdomen. Discoidal cellule nearly always open. Hooks of 

 the tarsi bifid. 



ACRAULIS BoiSD. 

 Head large, at least as wide as the thora.x ; antennas rather 

 long, terminated by a flattened club, more elongate, and less 

 rounded than in Argynnis ; palpi ascending, a little divergent at 

 the summit, covered with close-set hairs ; the first article very 

 short, obtuse. Abdomen shorter than the secondaries ; discoidal 

 cellule of the latter always open ; primaries elongate, with the 

 posterior edge sinuate; the secondaries denticulate. 



1. A. vanillae Linn. Linn. Syst. Nat. II, 787. Figured in Cram. pi. 212. 

 StoU. Suppl. pi. 1. Sulz. Gesch. pi. IS. Cleruk, Icon. pi. 40. 

 Boisd. et Lee. 143, pi. 42. A. jmssijiorae Fab. 



3Me, bright fulvous ; female, more dull ; primaries elongate, 

 posterior border a little concave, divided at the summit by the 

 veins, and lower down by streaks, widest at the edge, black. 

 Disk, with some black spots, of which two or three of those 

 situated in the discoidal cellule are pupilled with white. In some 

 specimens, these pupils are obsolete. 



The secondaries are bordered by a black band, crcnated on the 

 outside, and divided by large spots of the ground color. Between 

 the centre and outer edge there 'are three or four black spots. 



