Pe r f o l ia t e ; in thefe the head is divided horizontally, but
the lamina: are connected by a kind o f thread pafling through
their center.
Pe c t in a t e ; thefe have feveral lateral appendages, and appear
like a feather.
A r is t a t e , fuch as have a lateral hair, which is either naked,
or furnilhed with fmaller hairs.
Befides the foregoing terms, the antennae are called Ihort {brt-
viores) when they are fhorter than the body ; mediocres, or
middling, when they are of the fame length; and longiores,
when they are longer.
Near the mouth there is alfo a fpecies o f fmall filiform articulated
antennae, called the pa l pi, or feelers; they are generally
four in number, fometimes f ix ; they are placed under and
at the fides o f the mouth, which fituation, together with their
fize, fufficiently diftinguifh them from the antennae; they are in
continual motion, the animal thralling them in every matter, as-
a hog would it’s nofe, when in fearch o f food. Some have fup-
pofed them to be a kind of hand to affift in holding the food
when it is near the mouth.
T he forehead occupies the upper part of the head, between
the eyes, the mouth, and the thorax.
T he stemmata, or crown, three' elevated fhining hemi-
fpheric fpots refembling eyes, and placed upon the upper part of
the head, as in moft of the hymenoptera clafs.
T he trunk is fituated between the head and the abdomen;
the legs and wings are inferted into i t ; but in order to diftinguifh
the parts thereof more eafily, it is divided into the thorax, fcu-
tellum, andfternum.
T he t h o r a x is the upper part o f the trunk; it is o f various
fhapes and proportions ; the fides and back o f it are often armed
with points.
T he scutellum, or efcutcheon, is the pofterior part o f the
thorax, and is generally of a triangular form; though it adheres
to the thorax, yet it is eafily diftinguifhed from it, by it’s figure,
it’s ufe, and often by an intervening future; it appears defigned
to affift in expanding the wings when the infefi is going to fly.
T he sternum is fituated on the inferior, part o f the thorax ;
it is pointed behind in fome fpecies, and bifid in others.
T he abdomen contains the. ftomach, the inteftines, the air
veflels, the ovary, &e. it is affixed to the thorax, and in moft
infefts diftinfl from it, forming the pofterior part o f the body,
being generally compofed of rings or fegments, by which the
infefi can lengthen or fhorten it, or even move it in different
direflions. In fome fpecies it feems to be formed but of one
piece. The upper part of the abdomen is called the tergum,
the under part the venter; the anus is the pofterior part of the
abdomen.
T he spiracula are fmall oblong oval holes or pores, that
are placed fingly, one on each fide o f every ring of the abdo-
y men;