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Pilumnus
Butterfly.--Resembling the preceding species, but smaller, having the bands and black margins of the wings decidedly broader, and the lobe of the anal angle of the hind wing so much lengthened as to give the wing the appearance of being furnished with three tails. Expanse, 3.80-4.30 inches.
Early Stages.--All we know of these is derived from the brief account given by Schaus in "Papilio", vol. iv, p. 100. Mr. Schaus says that the larva "feeds on laurel."
The insect is Mexican, and only occasionally occurs in Arizona.