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 Compton Tortoise (BB Inner margin of fore wings)

BB. Inner margin of fore wings roundly excised beyond the middle (Polygonia).

C. Lower surface of hind wings with two silvery marks, a dot and a lunule forming an interrogation-mark. (P. interrogationis), p. 134.

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