PIERIS I. 



PIERIS SISYMBRI, 1-5. 



Picris Sisymbri, Boisihival, Aim. Sue. Kiit. do rrani't', 1852, p. 284. 



Male. — Expands 1..'] to 1.6 inch. 



Upper side white with a faint ^'ellow tint ; bases of wings dusted with black ; 

 primaries have the costal margin gray for tliree fifths the length from base ; the 

 ends of the nervulcs from apex to second branch of median covered by black 

 bars, which diminish gradually in lengtli down the margin; midway between 

 margin and cell is a transverse black band, interrupted opposite cell, and running 

 from costa to upper median interspace; on the arc a black bar, indented on outer 

 side ; secondaries inunaculate ; fringes of both wings white ; black at the ends of 

 the nervules. 



Under side same color ; the markings repeated, but paler or gray, the bars 

 along margin of primaries greenish-gray. 



Secondaries have all the nervures and branches broadly edged on both sides 

 with greenish-gray, somewhat interrupted on the extra-discal area, and across 

 this is a series of black serrations lying on the nervules, pointing towards and 

 parallel to the margin. 



Body gray above, thorax white })elow, abdomen yellowish ; legs white ; palpi 

 white with black hairs in front; antenna) black above, whitish beneath; club 

 black, the tip orange. (Figs. 1, 2.) 



Female. — Expands from 1.6 to 2 inches. 



Upper side like the male, but usually the extra-discal band is extended to sub- 

 median interspace, the second niL'dian interspace being immaculate; on under 

 side the markings are as in the male, sometimes slight and pale, but often heavy, 

 greenish-black ; the nervures and branches of secondaries in many examples 

 ijuff. (Figs. 3, 4.) 



Var. Flava. Female. — Both surfaces pale yellow. (Fig. 5.) 



