12-1 
Gencs TERIAS. 
"We owe the establishment of this genus to Mr. 
Swainson. It includes a considerable number of 
species, the greater proportion of which hare been 
but lately discovered. They are small insects, of 
delicate structure, and usually of a light yellow 
colour, with the apex of the upper wings deep black. 
The caterpillars, as far as we are acquainted with 
them, are attached to leguminous plants, and live 
between the tropics both of the old and new world 
The most important generic characters are the fol- 
lowing : antenna of moderate length, the articulations 
pretty distinct, terminating in an ovoid or conical 
club, which is slightly curved downwards, and com- 
pressed laterally : palpi very short, the terminal joint 
half the length of the preceding one, naked, and a 
little salient ; abdomen slender and compressed, 
nearly as long as the inferior wings ; wings of deli- 
cate texture, the costal line a good deal arched 
towards the base. Caterpillars slender, linear, and 
pubescent ; chrysalis a little arched, and somewhat 
compressed, terminating in a point anteriorly. 
