P. Clarius, Exersm. Very close to the above, but smaller and with the 

 black markings slighter; the red ocelli on the secondaries are smaller. Ex- 

 pands two to two one half inches. California. 



P.Nomion, Fisch. Wings clear white, primaries with a marginal band of 

 grayish black, intersected by white spots, and a submarginal row of irregu- 

 lar black spots; between this and the base are five large black spots: secon- 

 daries have two large red ocelli heavily bordered by black, and a marginal 

 row of black spots. Expands about three and one half inches. Alaska, 

 Sitka, Siberia. 



Group II. contains but one species: 



P. Eversmanni, Men. Wings, ground color citron yellow with the semi- 

 transparent black sha lings on primaries common to most all Parnassians; se- 

 condaries with two red ocelli. Expands two and one half inches. Alaska. 



GENUS PIERIS, Sehrk. 



Head rather large; eyes naked; palpi rather long, clothed with rigid hairs; 

 antennae moderate; abdomen slender and somewhat shorter than the secon- 

 daries; wings modeiately strong, the discoidal cell closed. 



Group I. 



Pieris Menapia, Felder. Wings pure white; primaries, costal margin 

 black, an elongated black spot bordering on the discoidal cell, and an irregu- 

 lar black band extending over the apex and about three quarters of the ex- 

 terior margin, containing generally five white spots, sometimes less; seconda- 

 ries with the veins more or less prominently black. The female has a black 

 band near the exterior margin of the secondaries and the veins between this 

 band and the exterior margin are heavily marked with black; the underside 

 of the secondaries of the female are bordered by streaks and spots of orange 

 red; a slight tendency to this marking occurs sometimes in the male. Ex- 

 pands from one three quarter to two and one quarter inches. Colorado, 

 Oregon, California, Vancouvers Island. 



Group II. 



Pieris Ilaire, Godt. Wings clear white with the costal margin and exterior 

 margins of primaries and secondaries very slightly bordered by black; the 

 wings are rather elongated; body blackish above, white beneath. Expands 

 two and one half inches. Florida (occasional). 



Pieris Monuste, Linn. Wings white; primaries with the costal margin 

 black, and the exterior margin with a black border, wider at the apex and ser- 

 rated within; in the $ the black border is broader with two white rays towards 

 the apex, and there is a black spot on the middle of the anteriors; the seconda- 

 ries of the S are entirely white, the 9 has a series of black triangular spots a- 

 long the exterior margin; body black above and white beneath. Expands 

 from two to two and one quarter inches. Southern States, Texas. 



One form of the 2 P. cleomes, B'dv., is entirely smoky gray with the same 

 markings as the normal form. 



(To be continued.) 



