TheoHES TOR ¥, of IN S5'e Ts, 
{mall, foft, delicate hull of a flower does out of a 
plant. Again, as in the other two changes, un- 
der which we fhall fee the Vermicles or Worms 
transformed into real Nymphs, the infects are 
deprived of motion, and as it were of neceflity 
lie unmoved for fome time; fo on the contrary, 
the infect, under this change, advances, ftands, 
walks, runs, leaps, and eats, nor is it ever de- 
prived of motion, only that it refts a little at the 
time it is to caft its skin; and then ftupendous 
_ changes happen in fome of them, as is fuffi- 
ciently manifeft in the Ephemera, or Day- 
fly. In others, on the contrary, the change 
is fo inconfiderable, that it is with great diffi- 
culty obferved, only about the protuberant 
wings, as is the cafe in the Earwig. 
Since therefore the infects which come 
under our fecond clafs of changes, are not at 
any time deprived of motion, and yet have 
fome of their parts well ordered, and com- 
pounded like other Nymphs: for thefe co- 
gent reafons we are induced to think, that the 
infect may, at the time it exhibits its limbs 
and parts in the manner aforefaid, not impro- 
perly be called a Nymph-vermicle ; for the 
little creature, whilft it is and remains a real 
Vermicle or Worm, has notwithftanding fome 
of its parts difpofed, and in an admirable man- 
ner beautifully compofed, juft as they are in 
the Nymph ftate. 
Our fecond order or clafs of changes is there- 
fore thus; the Vermicle or Worm having caft off 
the habit of a Nymph, which it bore, without 
93 
food in its egg, increafes infenfibly by the help 
of food fupplied from without, difclofing many 
and more vifible parts, until it afterwards puts 
on as it were the form of another Nymph; 
but this without lofing its motion, and it after- 
wards comes out of that as a winged infed; 
and having now attained as it were the mar- 
riage-ftate, becomes fit for generation. 
This is the {pecies of Nymphs, to which 
we. have given the fecond place among the 
natural orders of changes, fince the mutation in 
queftion is not very intricate, nor is it obf{cure 
or difficult to be underftood; nay, it may with 
thefe rules be comprehended eafily, and it ap- 
proaches very nearly to the firft order or clafs 
of changes, wherein we faw the creature iflue 
immediately out of its egg or coat; nor does it 
indeed differ greatly from that order. 
As this change is fo clear and evident, and 
as it agrees fo much with the budding and 
blooming of a flower, we have therefore 
thought proper to compare this, and the other 
fubfequent changes, to this budding of plants. 
This is the more proper, becaufe, as the in- 
creafe happens on the outfide of the creature, 
fo it is likewife obferved to happen in other 
infects on the infide, and under the skin; 
which has been fufficiently fhewn in the pre- 
ceding pages, and fhall be explained more at 
large hereafter. To conclude, as this change 
is very elegant, and very worthy of confidera- 
tion, it comprehends alfo a great many infects 
under it. 
Al catalogue of the infetts, which are referred to the fecond order or clas of natural 
changes, called the 
oe is this our fecond order or clafs of changes 
we refer firft the Dragon-fly, called the 
Mordella, or Orfodena, by Junius ; by Mouffet, 
Libella ; and by Aldrovandus, Perla. I preferve 
feventeen {pecies of this genus, nine very large, 
five of a middle fize, and three very {mall ones, 
which, becaufe they are tender and delicate, 
are dignified by fome under the particular name 
of Virgins. One of the fimalleft fpecies is 
well defcribed by Goedaert, but as this author 
neither delineates in its figure, nor takes any 
notice in its defcription of thofe {wellings in 
the back, wherein the wings are inclofed, it is 
evident he did not know the nature or difpofi- 
tion of this Nymph. Befides, the third figure 
which he gives us of it, mifreprefents nature 
according to the fancy of an imaginary brain. 
J never could find that it has hitherto been de- 
fcribed by any other author. Among the figures 
publifhed by Hoefnagel, who has given us the 
delineations of ten {pecies of the Dragon-fly, 
there is found none of the Nymphs before 
mentioned; it is certain, however, that they 
were in general not unknown to authors. We 
find that Rondeletius knew the Nymph of the 
* The famous infe&, the Formica Leo, 
Nymph V ermicle*. 
Dragon-fly, though he very improperly called 
it the Cicada or water Grafshopper. In like 
manner we believe that the Mordella is the 
water Locuft of Mouffet. This is moft certain, 
that the Forficula Aquatica of Johnfon, or 
otherwife the Pulex Marinus of Mouffet, is the 
true Nympha of the Mordella, The Scorpius 
Aquaticus alfo of Redi is nothing elfe but the 
Nymph of the Perla or Dragon-fly, but belong- 
ing toa fpecies which we reckon among the 
~ larger Virgins. 
I keep in my colle@ion, fix kinds of the 
Nymph Vermicle, from which Dragon-flies 
have their origin; there are one very large, 
three of a middle fize, and two fmall. I have 
likewife a Dragon-fly, which was to have un- 
dergone a change immediately, and in which 
one may obferve, in what a wonderful manner 
the wings are wrinkled and folded in the tuber- 
cles on the back, wherein they are enclofed. 
I preferve befides the ovaty of the Dragon-fy, 
which is perfectly like that of fith, divided into 
two parts, one whereof is placed in the right, 
the other in the left fide of the abdomen. 
: ic is a Vermicle of one of the Flies of this kind. This creature naturally walks back- 
ward. ‘There is another {pecies which moves forward ; thefe are found on land. ‘The more frequent kinds are thofe of the 
water, and they are common in our ditches. 
Bb The 
