PYRAMEIS. 59 



angle by a double bluish spot. The band of the primaries is 

 arcuate, slightly interrupted in the middle. Summit slightly 

 bluish, with six white spots, of which the interior, in the form of a 

 transverse band, rests on the costal edge. 



Under side of the primaries nearly similar to the upper, but the 

 summit is brown mixed with gray. The red band is paler at each 

 extremity, and separated from the white spots by a bluish ring. 

 At the base there are several streaks of the same color. 



Under side of secondaries brown, slightly marbled with gray ; 

 a yellowish spot on the middle of the costal edge, and some bluish 

 atoms on the lower edge, which is more or less grayish. Emar- 

 ginations white. 



Body of same color as the wings. Antenna annulated with 

 white and black ; club yellowish. 



Larva differs in its tints — sometimes of a yellowish-green, some- 

 times violet powdered with gray ; spines moderate, and a sinuous, 

 lateral band of citron yellow. Feeds on Urtica, and is almost 

 constantly enveloped between several leaves, drawn together by 

 silk threads. 



Chrysalis blackish, moderately angular, covered with a grayish 

 efflorescence, and ornamented with golden spots. 



United States and Europe. — Expands two inches and a half. 



Boisd. 



2. P. cardui Linn. Syst. Nat. IT, 776. Figured in most European works. 



Upper side of primaries at the base and internal edge russety 

 brown ; the middle fulvous, nearly cherry-red ; border black, 

 transverse and angulate. Summit widely black, with five white 

 spots, of which the interior is largest, and rests transversely on the 

 edge ; the four others are in the form of unequal dots, and ranged 

 in an arc. Posterior edge entirely black, with white emarginations. 



Upper side of secondaries fulvous, more or less reddish, with 

 the base, the internal edge and disk russety brown, and three pos- 

 terior and parallel rows of black points, of which the intermediary 

 are oblong and smallest ; the exterior are marginal, the interior 

 only four in number, and sometimes slightly ocellate. 



The under side of the primaries has the same markings as the 

 upper, but the fulvous of the middle still more approaches red. 

 The black band which divides it is marked with white near the 

 costal edge, and the summit is greenish-brown. 



