C 4*7 ] 
brought them up fucccflively in Solitude, as far as the 
Fourth Generation ; and all of them have brought 
forth. 
II. Perhaps one is already from hence inclined to 
think, that there is in general no Copulation among 
the Pucerons. But there will yet be fome room 
for Surprize, when I fay, that I have alfo obferved a 
Species of them where Copulation does obtain, as it 
does among fo many other Species of Infeds or 
Animals. The Male, like that of the Gall-infeds, 
has Wings, and is a good deal lefs than the Female. 
It is, perhaps, one of the mod eager Creatures in 
that refped that is in Nature : I have feen it copulate 
a great many times in one Day, both with the fame 
Female, and with others. 
The ordinary Diftindion of the Sex is not the 
only Singularity I have met with in this Species of 
‘Pucerons : It has fhewn me another no lefs remark- 
able. The Females, inftead of bringing conftantlv 
forth live Pucerons , fometimes produce only Foe- 
tufeSy which they lay one alongfide of the other, as 
Butterflies do their Eggs. 
Befides what relates to Generation, the Pucerons 
have offered me many other curious Particulars. I 
have feen, for Inftance, fome, which to caft off their 
Coats, have given themfelves Motions analogous to 
thofe of the Chryflalis of the thorny Caterpillar of 
the Nettle: But"' to enter into all the Particulars I 
have met with in thefc fmall Infects, would require 
a Volume. 
P p p 1 
Of 
