108 Dr. Suaw’s Defcription of the 
bers of them in the months of December and January, even imme- 
diately before and after intenfe froíts, feemingly as vigorous and 
lively as in the fpring and fummer: they. muft therefore either 
plunge themfelves to fuch a depth in the foft mud as to be fecure 
from the froft, or elfe they are not injured by being frozen for a 
time. : | 
MICROSGOPIC..DESGRIPTIO SPN. 
IN an infect of fo confiderable a fize as this, a microfcopical de- 
{cription might feem unneceflary: this has, however, been given by 
Scheeffets and moft of the parts which he has mentioned, are figured . 
in his work with fufficient accuracy. But it is to the laft degree afto- 
 niíhing that he has entirely omitted the defcription of the moft cu- 
rious part in the whole animal; nor does the leaft trace of it appear 
in the magnified figure which he has given of the male infect. This 
= part is the apparatus for feizing its prey, and which is peculiar to 
the male; the female having only a very {hort beak or mouth in the 
place of it. 
This apparatus confifts of two very long flat trunks, proceeding 
from between the long hooked parts or exterior fangs, fo confpi- 
cuous in the male infect. Thefe trunks are generally rolled up fide 
by fide, and carried in the fame manner as the probofcis of a but- 
terfly, fo as not to be externally vifible, except by a flight protube- 
rance; but when extended they reach to a very confiderable diftance, 
fo as to exceed that of the hooks or exterior fangs. 
It fhould be obferved that, from the part whence thefe trunks pro- 
ceed, the real mouth of the creature is placed, which confifts of two 
| large 
