NYMPHALIDiE. 
299 
green and dark brown. They are inhabitants of tropical America 
and the West Indies, and but two species range as far north as 
southern Texas. The more strikingly marked of these is Colcenis 
julia , of which figures are here given. It is brownish orange, and 
sometimes, when fresh and perfect, almost red. The wings are mar¬ 
gined with black, and a bar of black extends diagonally across the 
outer and upper portion of the upper wing. Beneath it is tan or 
rust color with a few darker shades. One or two faint red spots are 
located near the base of both wings. 
ColEenis delila. 
Our other native species, Colcenis delila , closely resembles the 
preceding species, but is without the' black markings across the 
wings, and is paler in coloring. These two insects are very abundant 
in Mexico, and one rarely receives a box of butterflies from that 
country which does not contain several specimens. 
The genus Danais comprises a large number of good-sized butter¬ 
flies inhabiting almost all portions of the world. Many of the 
grandest species are natives of southern Asia and the Malay Archi¬ 
pelago. The ground color of these insects is often brownish orange 
or reddish brown, while in some of the handsomer species it is green 
or blue. This color is usually diversified with bars and lines of 
black, these frequently following the veins and margins of the wings. 
These butterflies are supposed by naturalists to be protected from 
their enemies by a rank odor and a bitter taste, so that they have 
been in a large measure exempt from the attacks of birds and other 
