(5) Papilio daunus Boisduval, [Plate CXVIII], ♂ (The Two-tailed Swallow-tail).
This fine insect is even larger than P. turnus, which it somewhat resembles, but from which it can at once be distinguished by the two tails on the hind wings, followed by a lobe at the anal angle. Expanse 4.00-5.25 inches.
Found in the region of the Rocky Mountains from Idaho south to Mexico, but not found west of the Sierra Nevada and Coast Ranges in California.
PL. CXIX
(6) Papilio pilumnus Boisduval, [Plate CXIX], ♂ (The Three-tailed Swallow-tail).
Easily recognized from our figure. The lobe at the anal angle is so much produced as to give the hind wing the appearance of having three tails. Expanse 3.80-4.30 inches.
A Mexican species which occasionally is found in Arizona. It is one of the most beautiful species of the group to which it belongs and is rare in collections.
PL. CXX