Vol. XXvii] ENTOMOLOGICAL NEWS. 215 



sion and Forty-mile Creeks, N. E. Alaska, July 20th-24th. 

 The female described by Henry Edwards was taken 800 miles 

 up the Yukon River, Alaska. At the time it was described, 

 he probably did not know the female eversmanni or the figure 

 of the female by Menetries. The species has some varietal 

 names in Europe that are based on one sex or on very slight 

 geographical differences. 



Parnassius nomion Fisch. This species has been recorded 

 from Alaska, but I have not seen the typical form. We possess 

 two specimens of nomion nominulus Standerger that bear 

 merely the label "Alaska." We need additional material with 

 exact data to have a good understanding of the status of this 

 species in North America. 



Time alone will elucidate the value of the many names pro- 

 posed for the variation of the very plastic species of this 

 genus. At the present time I see no use for names based on 

 sexual differences or on individual variation. One may often 

 take a number of specimens of a single species, in a given lo- 

 cality, in a short space of time, and find that each one is dif- 

 ferent in markings from the others. For the benefit of Ameri- 

 can students, I append the references to our species published 

 since the appearance of the supplement to my Synonymic 

 Catalogue of North American Rhopalocera (1904). I have 

 briefly indicated in the above account of the species what 

 some of the names actually represent. Eventually the species 

 will be placed on a firmer foundation. Dealers in butterflies in 

 America have lamented the fact that we do not run to varietal 

 names as is the case in Europe where there is a good market 

 for these slight variations. 



LITERATURE. 



H. Stichel, Genera Insectorum, Parnasiinae, 1907. 

 cversvumni, p. 13, pi. i, f. 3, $ . 

 thor H. Edw. is treated as a subspecies. 

 baldur Edw. p. 14, pi. 2, f. 4, S is treated as a subspecies. 

 liisca, Stichel, p. 14, as a new form. 

 mcnctricsii Edw. p. 14, as a form. 

 lorquini Oberthur, p. 14, as a form. 

 claudianus Stichel, p. 15, as a new subspecies and cites the figure 



of clodius Verity, Rhop. pi. 22, f. 17-19 (1907). 

 gallatinus Stichel, p. 15, as a new subspecies. He refers to Elrod's 

 figures of Montana specimens. 



