PAPILIONIDiE. 
329 
gray. This insect is abundant in the states bordering on the Gulf 
of Mexico. It is of feeble flight, keeping near the ground, and 
seldom flying far at a time. Two or three other species of this 
genus closely resembling this one are found in the southern states. 
This species, however, is lighter beneath than the others. 
Tunas proterpia. 
A butterfly belonging to this genus, of a deep orange color and 
with angular outlines to the wings, is Terias proterpia. Along the 
upper margin of the upper wing is a heavy black band shading into 
gray. This color is continued, although very faintly, on the outer 
margin of the lower wing. The veins of the lower wings and the 
outer portion of those of the upper pair are black. This little but¬ 
terfly is found in Texas and Mexico, and I have a number collected 
in Colombia, South America. I have never seen the insect alive 
and can give no information as to its habits. 
Some very prettily marked butterflies belong to the genus Antho- 
cliaris. They are small, frail creatures, weak in flight, their deli¬ 
cately tinted and rounded wings suggesting the petals of a flower. 
Their usual color is creamy white with brown markings. The tip 
of the upper wing is usually occupied with a brown patch, in the 
middle of which in many species is an orange or red spot. Others 
lack this orange spot except in the male insect, and others still do 
not have it in either of the sexes. The lower wings are usually 
margined with brown spots. The under side of the lower wings 
is mottled with green, giving them a mossy appearance. This mot¬ 
tling also occurs near the tip of the upper wings beneath, and the 
orange spot where present is sometimes reproduced below. The 
wings are very thin and the moss-like markings on the under side 
