A Short Explanation of the TABLES. li 
REG. NVI. 
Lhe genital parts of the male. 
a The horny part of the penis, curled in a fur- 
prifing manner. 
b The membranaceous part of the penis. 
c The fore end of the penis, which is here re- 
prefented as it receives the vulva of the fe- 
male, inftead of being received by it. 
d The nervous root of the penis. 
@ The place where the root of the penis is 
dilated. 
ff The tefticles of a yellowith red. 
gg The vafa differentia. 
b bh Spherical appendages of the vefiels. 
zz The feed bags. kk The proftata. 
BeIeG.* XV: 
The external parts of the uterus and vulva. 
aa The two laft rings of the body. 
66 The firft joint of the extremity of the ute- 
rus, covered with hair, and furnithed with 
two little black horny bones. 
cc The fecond joint enclofed in the firft. The 
extremity of this fecond joint is likewife of a 
fubftance between bone and horn. 
d The third and laft joint, formed of the faid 
fubftance, and covered with hair. ‘This joint 
is received by the penis. 
BG ee XX, 
One of the fixty-four oviducts. 
a A perfect ege lying in the oviduct, of a 
white colour. 
6 Three imperfect eggs of a watery colour. 
TAB. XLIV. 
Obfervations on the Vermicles, or little Worms, 
found in the tubercles of the leaves of 
Willows. 
F EG. J. Ii. and Hl. 
- Tubercles of Willow leaves, the eggs, and Worms 
reprefented by fix feveral figures. 
Fol .G. <1 
a The external fide of the leaf. 
66 The internal fide. 
cc The warts or tubercles, of an oval round. 
d Others of an oblong form. 
e Others full of wrinkles. 
J Very {mall warts, which look rotten, as it 
were. 
g Warts, or tubercles, growing on the greater 
or main nerves. 
b Another on the extremity of the leaf 
z Another growing on the nerve itfelf. 
& Others, which rife on each fide to an equal 
height, above the coats of the leaf, 
Z Some on the ftalk of the leaf. 
m Seven rudiments of tubercles exhibited on 
each fide of the leaf. 
FIG. Ii. 
n The egg, that is found in the rudiments of 
the tubercles. 
PODS? oT, 
o A tubercle with a cleft in it, through which 
the egg may be feen placed in the middle. 
PoC. If. 
p Anegg magnified, fo as to fhew the head 
and two eyes of the enclofed Worm, that 
appear through its tranfparent {kin. 
PstaGy yy 
g The Bindweed Caterpillar, full grown. 
r The fmall hole bored by it through the 
tubercle or wart. 
Us ions Oe? HE 
A microfcopical view of the fame Caterpillar. 
- § The eyes. tt The fix fore feet. 
uz Six of the twelve middle feet. 
x The two hinder feet, next the tail. 
FOLG. ok, 
y The manner in which the Caterpillar thrutts 
its anus out of the hole, made by it in the 
tubercle, and thereby difcharges its excre- 
TTCHESsy aks 
z % Two rufty coloured {pots of the Willow- 
leaf; one of them with a hole in ft, within 
which may be feen the nerves of the leaf, 
and the excrements and head of another 
Worm, that lives in it. Fig. VIII. exhibits 
this Worm of natural fize. 
FIG. IV. V. and VI. 
Lhe Fly's web, and the Fly itfelf; likewife thofé 
parts of the Fly, with which it bores itfelf a 
paffage through the tubercle or wart; in jive 
Sigures. 
Poise ty", 
a The oval web of the: Fly. 
b The Fly itfelf. 
dO leo! A, 
The Fly feen through the microfcope, 
c The antenne or horns. 
dd The black {pots on the wings. 
e ce Six legs, their joints and two nails to each 
eg. 
F eG VI. 
The parts with which the female bores the leaf, 
Sf The laft rings of the abdomen, 
g An inftrument like a faw. 
hb "Ywo pointed horny bones. 
FIG, 
