Genus Polystigma Salvin & Godman
There is thus far but one species known to belong to this genus, which is marked off from all others by the fact that the males have normally developed fore legs as well as the females, and thus are the “exception” in the family, “which proves the rule.”
(1) Polystigma nais (Edwards), Plate LXXVIII, Fig. 1, ♂, Type (The Many-spot).
The lower side of the wings is pale red mottled with buff on the hind wings; the marks of the upper side reappear below and stand out boldly upon the paler ground. Expanse 1.00-1.25 inch.
P. nais occurs from Colorado to Mexico, east of the Rocky Mountains.