86 THE BUTTERFLIES OF THE WEST COAST 



larger, and with shorter tails, if we may judge from the illus- 

 trations of it, for it has been figured many times in European 

 publications. 



23. Papilio Aliaska. 



No figure. 

 Aliaska has never been figured that I know of ; nor have I ever 

 seen a specimen. It is usually accounted as a variety of Machaon, 

 but wherein it diflfers I do not know. It is said to live in North- 

 western America, from Puget Sound northward, but as to any 

 particular locality history is silent. 



24. Papilio Zolicaon. 



Plate III ; Figure 24. Male, Tallac Peak, 10,000 feet alti- 

 tude, July 26, 1892 ; Author. 



Zolicaon is what may be called an unlimited butterfly, flying 

 everywhere throughout the country west of the continental divide, 

 both north and south, and high and low, always in order. I have 

 taken it near the Mexican line, and at Wrangel, Alaska, and very 

 likely it goes to the Arctic Circle, on the Yukon. The more 

 northern specimens are smaller and darker than the southern ; 

 the ocelli are more red north and paler south, and the pupil of the 

 ocelli is larger south and smaller and elongated north. 



This figured specimen I took on the top of Tallac Peak, where it 

 was frolicking about the topmost rocks and acting as though it 

 would like to fly a few thousand feet higher if there were only 

 some rocks up there for it to alight upon. But Zolicaon is just 

 that kind of a bird ; it likes to get to the top of a hill and then 

 amuse itself by chasing other butterflies away, and playing the 

 bully generally. It is the way it is built. But although it flies 

 at such great heights, it flies also at tide level, and all over the 

 hills and lower mountains, at home anywhere and everywhere, if 

 only its larval food-plant, the umbellifera, be present. Zolicaon 

 varies greatly in size, from 2 inches to 3J/2 in expanse. 



25. Papilio Coloro, n. v. Not elsewhere illustrated. 

 Plate III ; Figure 25. Colorado Desert of Southeastern 



California, June, 1883 ; Author. 

 I figure herewith a new form of Papilio, closely allied to Zoli- 

 caon, but of deep yellow color, so peculiar as to deserve a separate 

 varietal name; I therefore call it Coloro, from the Colorado 



