(7^9) 
fpace, wherein they lay, they could not bring it quite 
round them, and only made it on one fide, by which 
means I was in hopes I fliould have the better view of 
them. But, contrary to my expectation, their Change 
happened in (o ihort a time, that I could not make my 
Remarks thereon, and as the iVIoths, Silk-worms, &c. 
Jye very regularly in a fort of a Skin or Membrane, with 
their Legs and Wings, after their change, fo lay alfo the 
Horns and Feet of thele little Creatures, each in a par^ 
ticular Skin, but feparate from the Body» and after the 
fame manner lay the hinder part of their Body, which 
was (haped much like a HooL 
Thefe Tonnekerrs, which at firft were white, after a 
fevv days turned blackifh, and at laft produced that 
kind of Fly v/ith the afore-mention'd Inftrument, like a 
Hook in the hinder part of it, which in length amount- 
ed to near two thirds of the whole Body. 
Fig. I. reprefents the aforefaid Fly juft as it appeared 
to the naked Eye, C D (hews the long, flender and 
hooked part, which we judg d to be Agd. 
When I brought this little Inftrument before my Mi- 
crofcope, it feem'd nothing lefs than a fort of Hook, for 
it was covered with a great number of fine Hairs, as 
you may (ee in Fig- 2. and it appeared to me to be hol- 
low. Thereupon I thought with my felf, whither this 
might not rather be the cafe for a Hook, and en- 
deavouring to fplit it, the Hook itfelf appeared 5 where- 
of I have only delineated the Point, jaggd with Teeth 
like a Saw. Fig. 3. E. F. The more I viewed this 
Hook, the more I fancied that there was another in- 
closed in it, nor was I miftaken, for I fplit the firft 
Hook, and took out of it t wo other diftind Hooks, but 
of one and the fame fhape. I have defcrib'd a fmall part 
of one of them by Fig. 4 G H, each Hook was fortified 
with Teeth like Saws, which I obferv'd was proper to 
them, and did not belong to Fig. 3. After 1 bad taken 
th€f 
