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Artonis

Butterfly, male.--Closely resembling A. eurynome, Edwards, from which species it may be at once distinguished by the entire absence of silvery scales upon the under side of the wings, and also by the fact that the silver spots on the under side of the hind wings are not compressed and elongated as much as in eurynome, and by the further fact that all the dark marginal markings of the under side are obliterated.
female.--The female does not differ materially from the male, except that the dark markings on the upper side are all much heavier, standing out very distinctly upon the paler ground, and the marginal spots within the lunules are very light in color and relatively large. On the under side the fore wings are laved with red, very much as in the female of A. adiante. Expanse, female, 1.75-2.00 inches; female, 2.00-2.15 inches.
Early Stages.--These still remain to be ascertained.
This interesting butterfly, which seems to indicate a transition between the butterflies of the Adiante-group and those of the Eurynome-group, has been found in Colorado, Nevada, Utah, and Arizona.