184 ECNOMIDEA PITHECIUM. 
sable to assign it a new generic name, as has been 
done above. Altogether only three of these curious 
moths have fallen under our observation, and they 
have so many points in common, that they may be 
all included, at least provisionally, in the present 
genus. The perfect insects are in no way remark- 
able, but the caterpillars are furnished with long 
lateral appendages, commonly curved backward's, 
and so disposed as to take away all resemblance to 
a lepidopterous larva. So much is this the case, 
that Madame Merian, speaking of the one she has 
figured, says that she found this rare animal on a 
citron, and although it was entirely different from a 
caterpillar, it produced a very pretty moth. Her 
delineation was the first that appeared of one of 
these caterpillars, and it seems to have attracted so 
little attention, that we are not aware that even a 
specific name has been given to it. Stoll figured ano- 
ther, which he found to produce the moth described 
by Cramer under the name of Phal. (Bombyx) 
Hipparchia (pi. 185, fig. D). The third, which has 
been engraved on the accompanying plate, was 
figured by Abbot and Smith in their joint work on 
the Lepidoptera of Georgia. 
All these caterpillars are rather of small size; 
have the head minute and retractile as in Lima- 
codes; the body somewhat flat, and on each side 
are three long projecting appendages covered with 
hair, having a small fleshy protuberance between 
them terminating in a hair ; and there are two other 
projecting pieces, of intermediate size, behind the 
