210 NORTH AMERICAN INSECTS. 
jan war. This butterfly is about the same size as the pre- 
ceding one, and has wings of a brownish-black color, with 
several white and yellowish stripes, and on the hind wings 
are yellowish and blue spots. Its body is nearly black, 
with two white lateral stripes upon it. Its caterpillar is of 
a pale-green color, embellished with various-colored lines 
and spots. It is found only in the Southern States, and, 
with its caterpillar, lives upon the Porcelia pigmea, a kind 
of custard-apple bush, which is by some incorrectly called 
papaw. 
The Catcuas (Papilio Calchas) was so called by the cel- 
ebrated Danish entomologist Fabricius, after Calchas, the 
soothsayer and high-priest of the Greek army in the Trojan 
war. This butterfly is frequently found in the Southern 
States, from Virginia to Louisiana. It has dark, olive- 
green wings, crossed in the middle by a yellowish band. 
Its body is dark, with a longitudinal yellow line on each 
side, and the whole insect is about the size of the Asterias. 
The caterpillar is green, has red feet, and a yellow hood 
over its head, and lives on several species of the cinnamon 
tribe (laurinee). 
The Porypamas (Papilio Polydamas) was so named by 
Linnzeus, after the Trojan prince Polydamas, son-in-law of 
the king Priam, and on account of the red spots was class- 
ed among the “Trojan knights.” It has wings of a dark 
green or bronze color, on the upper side, crossed in the 
middle by a yellow stripe, while the under side of the hind 
wings is of a dark-brown color, with red dots on the mar- 
gin. ‘The body is black, and has two reddish spots on the 
neck, which are its insignia of knighthood. Its caterpillar 
has a light-brown body, with red lines and yellow spots, 
and lives principally on birth-wort (Aristolochia serpenta- 
ria). It is found in the South, from Georgia down to South 
America. 
