PARNASSIUS,II-IV. 



(lividuals from deep crimson to ochraceous, and frequently are pupilled with wKite; 

 many individuals also have a black sjwt near anal angle, and there is very rarely 

 found a crimson dot within the black bas;d spot that occujiies the sub-costal inter- 

 space; fringes concolored, black at tips of nervules. 



On the under side the markings are repeated, the cellular sjwts but in jyart 

 dead-black, the crimson spots as above, and where the patch next anal angle is pres- 

 ent it is usually jJUpi lied with crimson; there are also at base four black spots 

 usually more or less covered with crimson, but sometimes this last is wanting on one 

 or two or even altogether. 



Body small, black, covered thinly with grey-brown hairs on both thorax and 

 abdomen above, more thickly beneath, the color there being soiled yellow, often 

 with a fulvous tint; legs yellow and black; palpi yellow; antennis white annulated 

 with narrow black rings; club black. 



Female. — Expands from 1.7 to 2.5 inches. 



Upper side white, often with a yellow tint, marked generally as in the male, 

 and exhibiting as great degree of variation; the crimson sj^ots larger, sometimes 

 even four being found in the extra-discal row, the fourth occuj^ying the ui:iper me- 

 dian intersjjace; the spot on inner margin always present and largely puj^illed with 

 crimson; that near anal angle duj^lex, usually with crimson pupils; on primaries 

 the transparent jiortions extend half way to cell and quite across the wing, enclos- 

 ing a sub-marginal row of white lunules; the hind margin of secondaries more 

 or less transparent and presenting a series of black crescents or of 2iatches of 

 scales indicating obsolete crescents; there is also frequently a crimson sj^ot at 

 base in sub-costal intersjiace; on the under side the basal sj^ots vary as in the males, 

 from black to grey, and with or without crimson; abdomen furnished with a 

 blackish, corneous j)Ouch, flattened and curved down posteriorly, and j^resenting 

 in front a thin, prominent keel; often there is no trace of this pouch. 



Var. FemxVle. — The wings melanized and largely transparent. Found at 

 high elevations. 



Var. Behrii. — Characterised principally by conspicuous submarginal black 

 spots on secondaries and orange discal spots, those of costal margin of primaries 

 either white or pale orange. In the female the submarginal spots are very conspi- 

 cuous and the mesial band on primaries broad; colored sj)ots either orange or red. 



From 180 S, 42 2, taken in Colorado by Mr. T. L. Mead, in June, July and 

 August, 1871; and several specimens received from Dr. Haydeu's Yellowstone 

 Ex^jedition, taken in IMontana. 



Egg. — Diameter .05 inch : chalky- white, button-shajied, the top depressed, base 

 flattened, the surface encrusted with hexagons that diminish as they approach the 



