7 6 Of tie Gnat. 
they appear in form of fig. 129. and then they caft ofF 
their whole (kin, eyes, horns, and tails; and iflue forth 
as infers of a quite different element: the moft beautiful 
and elegant plumage adorns their heads; their limbs are 
of the finefl texture; their wings are curioufly fringed 
and ornamented ; their whole bodies are invefted with 
fcales and hair; and they are actuated by a furprizing 
agility; in fhort, they become gnats, and fpring into the 
air; and what is moft amazing, a creature, that but a 
minute fmce was an inhabitant of the water, would now 
be drowned if it were plunged therein. 
It is very probable, that many forts of the animalcules 
in fluids undergo fome fuch like change. 
Of the tufted, brufh-horned, or male gnat. 
I T S furprizing and particular beauties are only to be 
difcovered by the microfcope; and is exadtly of the 
ihape of one of thofe which Mr. Hook obferved to be 
generated out of one of the little watery infe&s juft 
defcribed. 
Nature has adorned it in a moft furprizing manner: 
its head A is exceeding fmall in proportion to its body, 
which confifts of two clufters of pearled eyes, fig. 130. 
curioufly ranged like thofe of other flies ; between which, 
upon two blackifh bails, are placed two long jointed 
horns D, tapering towards the top; from whence iffued 
out-in a circular manner, multitudes of fmall ftiff hairs 
from its feyeral joints, exa&ly refembling the fproutings 
of the herb horfe-tail. There are alfo two other jointed 
and biiflled horns or feelers D, and a probofcis F, 
underneath which is the fucker or fting, which in fome 
gnats is very long. This fmall head, with its appur- 
f tenances. 
