34 PL Awe LX XX. 
The Caterpillar, from which it is produced, is ef a very extraordi- 
nary forni, and has rather the appearance of a formidable or venomous 
creature, than the larva of a Moth: it feeds on Willows and Poplars, — 
and is generally found in great plenty where thofe trees grow, in the 
month of ‘uly. “The two tails, or crimfon filaments at the extremity — 
of the body, are protruded or concealed within their bafe at the crea- 
ture’s pleafure; when protruded they have a continual writhing or 
vibratory motion. 
eS ee ae es ee 
It paffes to the Pupa ftate in Augu/?. 
— 
PLATE 
