How to Know the Butterflies

The Cornell classic that taught America to name what it saw: every eastern butterfly described from life, with its caterpillar, its food-plants, its habits — and how to pronounce its Latin.

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The Sleepy Dusky-Wing

Thanaos brizo (Than'a-os bri'zo) PLATE XLV, FIG. 2 The wings are dark brown without white spots. The fore wings are crossed from the costal margin to the anal vein by two transverse bands, one before the middle, the other beyond the middle. The edges of these bands are dark blackish brown, the center gray. Nearly all of the upper surface of the fore wings is flecked with white hairs; but these are not appreciably more abundant between the transverse bands than elsewhere. Expanse of wings one and one-third to one and one-half inches.

This species is distributed over the larger part of the United States except the far Northwest.

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← The Sooty-Wing (Pholisora catullus)The Dreamy Dusky-Wing (Thanaos icelus Than'a-os) →