Peer 
The Stinc or Saw which terminates it, is flatted, and thin, and of 
a chefnut brown; faw’d in the Female, plain in the Male. On 
preffing the body of the Fly between the fingers, it may be forc’d 
out farther, a little from the vent. 
This is the Yenthredo-Alni, of the Syftema Nature of Lin- 
neus. Perhaps alfo, it isthe Tenthredo Ovata of the fame work ; 
for Infe&ts are not fo numerous, as ’tis the cuftom now to think 
them: and colour, tho’ an obvious, is no certain character among 
thefe creatures: in fome it differs with the feafon ; in others, with 
the fex; in all, it glows according to the creature’s health and vi- 
gour : in moft, it is exalted in the time of courtfhip, as the feathers 
on the necks of fome Fowls ; and in fome, it fades, and is loft utterly » 
in dying,.as the colours of many fithes. 
This pretty Fly rifes from a yellow Worm with a black head, and 
twenty little feet ; frequent in fummer on the Alders, and bury’d 
under ground all winter for its change : in May we {ee it perfect. 
’T were well if we knew all the Infects, as this is known; but 
*tis only a fmall part that have been trac’d fo thoroughly ; where they 
have, it makes a great addition to their hiftory: but where the eye has 
not diftinctly feen it, ’tis heft to be filent. They whg relate their errors 
and conjectures, under the feeming face of knowledge, deceive, and 
are deceiv'd. ' 
i. MOTTLED 
