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Orseis
Butterfly, male.--The dark markings on the upper side are much heavier than in either of the two preceding species, and the fulvous spots are smaller, the marginal crescents more regular and distinct. The markings on the under side are also much heavier than in P. batesi or P. pratensis.
female.--The female is like the male, but all the dark markings are heavier and the pale markings lighter. Expanse, male, 1.35 inch; female, 1.60 inch.
Early Stages.-These remain to be described.
Phyciodes orseis ranges from Washington Territory in the north to Mexico in the south.