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 Swallow-Tails (AA Butterflies)

AA. Butterflies in which cubitus is apparently three-branched; and in which the anal area of the fore wings is more reduced than the anal area of the hind wings, the former having a single anal vein and the latter two (Fig. 27). B. Palpi much longer than the thorax. (Libytheida), p. 210.

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