ie el a ST OR RY 
of legs, which is depofited in the fame man- 
ner-as the firft and fecond were under the 
skin; all thefe parts, as far as they lie un- 
der the skin, are fomewhat wrinkled or folded, 
and they are by this means above one half 
fhorter than afterwards when the creature is 
changed into a perfect Nymph ; for when the 
Worm cafts it skin, thefe parts are confidera- 
bly and wonderfully inflated and extended by | 
force of the air, the fluids, and particularly of 
the blood: this extenfion of thefe parts is 
performed at the time when the Worm, by 
the’ means of a kind of periftaltic motion, 
breaks open the skin by rolling it down, and 
is incredibly promoted’ by the parting exuvia 
or caft skin ; for fince ali thefe parts by means 
of delicate and minute fibres and filaments 
adhere loofely to the skin; hence the skin 
carries them with it as a kind of moveable 
cords, and the parts themfelves being by this 
means extended, roll in their turns from the 
skin in the fame manner as a cord runs out of 
its pully. ‘This is the true reafon why thefe 
parts are fo regularly digefted and extended in 
the Nymph, and are difpofed in fo beautiful 
and firm an order and fo wonderful a fituation 
as Tam now going to defcribe, according to 
- the figures which I have given. TI thall firft 
then fhew in a fomewhat fmaller figure the 
difpofition of the parts under the skin, a little 
removed from their firft fituation. Tab.XXV. 
fig. 1v. aa, are the horns, 4 the probofcis 
With its parts, ee denotes the firft pair of legs, 
under which is feen a fecond ff and then a 
third gg; bh, 77 are the larger and {maller 
wings of each fide: & denotes the rings of 
the abdomen. I fhall in the ninth figure re- 
prefent the fituation of thefe parts in the 
Nymph in a larger {cale. 
Fig. 1x. @ Reprefents the Nymph’s head, 
which being then diftended with humours, and 
expanded by force of the impelled air, refem- 
bles in foftnefs and tendernefs, milk that is juft 
curdled. In this manner the whole body and 
all the reft of the parts are circumftanced at this 
period. All thefe parts are of a milk-white 
colour, and the whole infect is without any 
the leaft vifible motion; fo that in reality, it 
refembles a dead carcafe. . 
. 66 Exhibit the eyes of the Worm, which 
now appears under the form of a Nymph. Its 
three {maller difperfed eyes cannot be feen in 
this view, being placed more backward and 
higher in the head, in the middle between the 
larger eyes. The firft change obfervable in this 
creature, when it becomes ftronger by the eva- 
poration of the moifture is manifefted about 
thofe {maller eyes, and about the large ones 
here figured 64. Their change confifts in this, 
that the eyes, by degrees and as it were, infen- 
fibly affume a faint purplifh colour: at the fame 
_ time is alfo-difcovered the femi-lunar figure of 
thefe large eyes, which one cannot otherwife dif- 
cern, on account of the intenfe whitenefs which 
obtains here, and the brightnefs of the furface. 
or MICNCS & GF S. 183 
ec Are the antenne or horns which {pring 
from the middle of the head, and are bent 
by force of the skin that is drawn down towards 
the belly ; they are very elegantly placed near 
the probofcis and its adjacent parts. Under the 
extreme ends of the horns are difpoied the 
three firft joints of the firft pair of legs 7 z. 
In the middle of thefe one may fee numerous 
pulmonary tubes through the*covering. 
d Denotes the lip, which is not yet remark-_ 
ably increafed in its fize, or diftended. 
ee Are the teeth or jaws, which are covered 
in fome meafure by the lip. 
JS f Shews the firft pair of thofe parts which 
belong to the trunk or probofcis: they have 
likewife their pulmonary tubes, but above 
them and under the teeth is feen a certain por~ 
tion of the third or laft pair of thefe little 
parts belonging to the trunk, which are the 
fhorteft and fmalleft of all. 
& g Reprefent the articulated pair of little 
parts that defend the probofcis, which are di- 
vided on each fide into three joints. 
h Is the probofcis itfelf, very beautifully fitu- 
ated between and under the {aid parts. But we 
muit obferve, that all thefe little parts are now 
farnifhed with tranfparent pulmonary tubes, 
When the little infe€&t is approaching to its 
laft change, and is in a fhort time after to ob- 
tain the form and name of a Bee, then all thefe 
pulmonary tubes become again for the moft 
part invifible. And the fame thing obtains 
about the veffels of the wings: which are then 
bound or tied up in fuch a manner, that you 
would conclude them not to be pulmonary 
tubes but nervous fibres. — 
72 Exhibits the firft pair of legs in the Bee, 
while it is ftill called a Nymph. The three 
extreme joints of thefe legs may be feen under 
the extremities of the antenne ¢ c. 
kk Are two very beautiful, ftiff, tranflucent: 
little parts, fituated at the loweft joints of the 
firft pair of legs, and which feem to ferve the 
Nymph only as an ornament ; for upon cafting 
the skin, they are thrown off and entirely abo- 
lifhed. 
// Another pair of the Nymph’s legs, which 
likewife are full of tranfparent pulmonary 
tubes. _Thefe legs, being, by means of the 
skin when drawn off, and by the power of 
the impelled air and forced humour, deprefled 
and ftretched beyond the middle of the body, 
are there very regularly placed. 
mm Are the wings of the Bee, {till confti- 
tuted under the form of a Nymph, a part of 
which only we can hitherto fee. Thefe like- 
wife have many pulmonary tubes, which, when 
this Nymph is cafting its laft skin, are alfo, 
together with all the other parts, once more 
to throw off their exuviz: after which, when 
thefe tubes are again diftended by the frefhly 
impelled air, and the pneumatic veflels which 
have been. hitherto contracted, are inflated and 
diftended with the fame air; it follows, that 
the whole wing afterwards expands itfelf and 
becomes 
