62 PLAW EY GXXXI 
In the months of June and July, or earlier in forward feafons, 
this Infe& is found in great plenty in the lanes and {kirts of: woods ; 
and are very troublefome to perfons or animals who pafs through fuch 
places in the middle of the day: they conceal themfelves in the ~ 
crevices of the bark of trees, or among the foliage till about an hour 
before noon, when they come forth. in great plenty, and fettle on 
the hands and face, or other thinly covered parts, and dart their fharp 
pointed trunks or probofcis into the flefh : we have obferved the fting 
of this Infe&t to be moft fevere about mid-day, particularly when 
the fun fhines bright, and emits much heat ; a difagreeable fenfation 
continues in the ftung part for fome time, and is generally fucceeded 
by a large tumor, and a flight difcharge of pungent fluid before it 
difappears entirely. 
‘To explain more minutely the ftru€ture of the trunk, we have 
given a figure of its magnified appearance at Fig. III: the outer 
coat, or fheath, terminates at its extremity, in two lateral, moveable 
lips, and contains a longitudinal, horny, convex blade ; the acute. 
point of which is concealed between thefe lips: this interior tube, 
when examined with a Microfcope, appears to confift of three others, 
exceedingly fharp at the points; and are ufed by the Infe& as lancets 
to lacerate the flefh when it feeds, while it pumps, or fucks up the 
blood and moifture from the wound, through the capillary tubes with 
which feveral parts of the trunk are furnifhed. 
It feeds in the fame manner on Infeéts, but chiefly on thofe in 
the larva ftate. 
The fpecies is not uncommon in Germany, France, Italy, and 
moft warm parts of Europe: alfo received from Georgia, in North 
America. 
Fig. I. Natural Size. Fig. II. Front View of the Head mag- 
nified, with the Eyes and Probofcis; the former are moft beautiful 
microfcopical objects when the Infeé& is alive, but turn brown after 
-it dies. 
PLATE 
