The Nature Library

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Silenus

Plate XIX — Silenus is Fig. 5
Plate XIX — Silenus is Fig. 5

Butterfly.--Larger than gracilis, and the wings more deeply excised, as in faunus. On the under side the wings are very dark, with lighter irrorations, especially on the fore wings. Expanse, 2.00-2.30 inches.

The early stages have never been studied. This species appears to be found only in Oregon, Washington, and British Columbia.