on its body or wing cafes. I have alfo obferved it in 
great plenty on the fcarabaeus ftercorarius Lin : or 
common black beetle, as well as on a fmall brown 
variety of the fcarabaeus fimetarius Lin: which is 
almofl always to be found in cow-dung in the months 
of April and May. 
The manner in which thefe minute infedts adhere is 
very curious ; for each is affixed by a flexible ftalk or 
pedicle to the wing-ffiells and other parts of the infedt 
they infelt; fo that unlefs their nutriment is abforbed by 
the Italk which fupports them, (and which, in this 
cafe, muft be tubular,) they muft have the power of 
bending the ftalk in a femicircular diredtion at parti¬ 
cular times, fo as to enable them to adhere occafionally 
to the infedt for the purpofe of feeding. They are 
fometimes fo numerous as to prevent the beetles on 
which they grow, from doling their wing-fheaths; 
and adhere to their limbs in fuch a manner as greatly 
to impede their motions. 
The upper furface is fmooth and convex; the lower 
furface flat; but the figures annexed will convey a 
clearer idea of the feveral particulars of their appear¬ 
ance than any defcription. The two upper figures 
reprefent the fore and back view of the infedt. The 
large groupe reprefents fix of them adhering to the 
elytron or wing-ffieath of the brown variety abovd- 
mentioned of the fcarabaeus fimetarius. The other 
figure fhews the lingular appearance of the jaws and 
other parts at the head of the infedt, magnified in a 
much greater degree. 
I once 
