OF INSECTS IN GENERAL. 
339 
■wings, covered with cruftaceous elytra, and is fubdivid- 
-ed into thirty different genera, according to the fhape of 
4 he antennae. 
The fecond order is called the hemipterous : becaufe 
the wings are half covered with cruftaceous elytra, and 
are lefs hard and robuft than thofe of the coleopterous 
infers, but more ftrong than thofe of the membren aceous 
ivinged i fedts that cornpofe the fubfeqnent orders. The 
upper wings are femi-coriaceous i They do not meet to- 
gether in a longitudinal future, as in the fir fl order; but 
have part of their interior margin crofted or lapped, the 
one over the other along the upper part of the abefotjnen. 
The mouth and probofeis of the infedts of this order, are 
bent inwards towards the br'eaft. 
The third order comprehends the various tribes of 
moths and butterflies, whofe wings are covered with im- 
bricated feales, and which on that account are called 1c- 
ptdopterous infedts. They have four membranaceous 
wings ; their bodies are rough, and the mouth furnifhed 
with a fpiral tongue, which they can roll up, or unfold 
at pleafure. 
The neuropterous infedts conftitute the fourth order, 
which comprehends all thofe genera which have four 
naked and membranaceous wings, reticulated with veins. 
The tail of thefe animals is unarmed, having no fling, 
but is provided with appendices like pincers, by which 
the fexes are diftinguifhed. 
The infedts of the filth order have the tail armed with 
a fling, excepting the males, which have not that uften- 
five inftrumeut. They ha\e four membranaceous wings, 
and are called the hyinedopterous infects. 
The fixth order contains the depterous infedts, or fuch 
35 have only two wings : They are farther diftinguifhed 
U u a by 
