BUTTERVLY. 
205 
having characters which would more properly 
entitle them to a place in some of the other di- 
visions. 
The larvm of Butterflies are universally and em- 
phatically known by the name of Caterpillars, 
and are extremely various in their forms and 
colours, some being smooth, others beset with 
either simple or ramified spines, &c. and some, 
especially those belonging to the .division Equites, 
are observed to protrude from their front, when 
disturbed, a pair of short tentacula or feelers, some- 
what analogous to those of a snail. 
A Caterpillar, when grown to its full size, retires 
to some convenient spot, and securing itself pro- 
perly by a small quantity of silken filaments, either 
suspends itself by the tail, hanging with its head 
dovvnwards, or else in an upright position, with 
the body fastened round the middle by a yiroper 
number of filaments. It then casts off the cater- 
pillar skin, and commences chrysalis, in which 
state it continues till the inclosed Butterfly is 
ready for birth, which, liberating itself from the 
skin of the chiysalis, remains till its wings, which 
are at first very short, weak, and covered with 
moisture, are fully extended: this ha-ipens in the 
space of about a quarter of an hour,pvhen the ani- 
mal suddenly quits the state of inactivity to which 
it had been so long confined, and becomes at plea- 
sure an inhabitant of air. 
The papilionaceous insects in general, soon 
after their enlargement from the chrysalis, and 
commonly during their first flight, discharge some 
