ECNOMIDEA PITHECIUM. 183 
that an accurate account has not been given of the 
nature of these appendages, as their occurrence is so 
rare among this tribe of insects. It is probable, 
however, that the projected points are not stings 
properly so called, but merely shai-p needle-like 
pieces, charged with some acrid or poisonous mat- 
ter. 
The arrangement and appearance of the tufts on 
the caterpillar of Limacodes Ccelesiina, formerly al- 
luded to, are so similar to those of D. vulnerans, 
that it is no way improbable that they may possess 
like properties. But with regard to this and other 
species of similar construction, this point can be 
ascertained only by the observation of living speci- 
mens. 
ECNOMIDEA* PITHECIUM. 
PLATE XXI. Fig. 4. 
Bombyx Pithecium, Abbot and SmiWs Lepid. Georg.^ pi. 74. 
This insect belongs to another group nearly related 
to Limacodes, but even of more singular aspect in 
the larva state, insomuch that it becomes indispen- 
* From ixvcfios, inusifatus, and ihia, forma; in allusion to the 
singular sliape of the larva. 
