Tie Hiftory of ANIMALS. 8t 
TETRAPTERA. 
Clefs the Fifth . 
HYMENOPTERA* 
InfeSts which have four wings > and thofe all entirely membranaceous . 
TENTHREDO. 
T H E female of the Tenthredo has a ferrated point, or weapon, at the tail : the 
worm, produced of the egg, has feveral feet. 
The fpecies of this genus have been generally confounded with the Ichneumons. 
Tenthredo antennis clavatis , atra ; fegmentis abdominalibus partim 
ferrugineis . 
The black Tenthredo , with clavated antennee , and with fome of the feg- 
ments of the body ferrugineous . 
This is a large fly : it very nearly equals the hornet in fize : it’s body is black, except 
that the third, fourth, and flfth joints or fegments of it are ferrugineous, it is hairy : 
the wings are very thin and tranfparent; the legs black, but the feet yellow within : 
the antennas are clavated and yellow, except the lowed: joint, which is black : there 
are fome ferrugineous black nerves in the wings, and they have a brownifh tinge to¬ 
ward the outer edge : the worm feeds on the willow, poplar, and birch, and is 
fmooth and green, and has a black lift down the back, edged with yellow it has 
twenty-eight legs, and often rolls itfelf up in a fpiral form. 
Tenthredo atra antennis undecim-nodiis , alls nigro alboque maculatis . 
The black Tenthredo, with eleven joints in the a 7 itennce , and wings J potted 
with black and white. 
This is of the flze of a common houfe-fly : it’s body, thorax, head, and legs are all 
black : the antennae are flender; the wings have feveral veins in them j the upper ones 
have two black fpots, of which that nearefl: the thorax is lunated, the other round, 
and near it, toward the top of the wing, there is a white one. 
We meet with this fpecies frequently in the woods about Harrow on the Hill, and 
in many parts of the North. 
Tenthredo antennis duodecim-nodiis, nigris , abdomine fubtus ferrugineOj 
pedibus flavis . 
The yellow-legged Tenthredo , with the body ferrugineous below , and the 
antennee compofed of twelve joints, \\ 
This is a fmall fpecies, fcarce exceeding a flea in fize : the antennae are flender 
and black; the head and thorax are alfo black and gibbous : the body is of an oval 
figure, and is carinated, ferrugineous beneath, and black towards the anus; the legs are 
ferrugineous, and the wings are larger than the body, and are whitifh, and have nothing 
of the fpots common on many others of this genus. 
This fpecies is produced in the excrefcence of the common Dog-rofe, called the 
Bedeguar, and fpunge or gall of the rofe in the fhops. 
The other fpecies of the Tenthredo are, i. The black Tenthredo, with clavated 
antennas, and an oval body, and ferrugineous wings. 2. The black Tenthredo, with 
ferrugineous legs, and with a cylindric cornicle at the anus. 3. The black Tenthredo, 
with ferrugineous legs, and with the apex of the anus deprefled and acute. 4. The 
Tenthredo, with the antennee formed of feven joints, with a yellow body, with the 
head and the middle of the thorax black, and with an oval fpot on the wings. 5. The 
Y Tenthredo, 
