I once obferved thefe infects in great plenty on the 

 onifcus armadillo, or common officinal Millepede. 

 Upon the whole, I am ftrongly inclined to believe the 

 vegetating mite to be nothing more than the larva or 

 young of the acarus coleoptratorum, or common 

 beetle-acarus, which infefts thofe infects at moft 

 feafons of the year, and which is well known to every 

 obferver of infects. I mould obferve that the acarus 

 vegetans does not occur under the genus acarus in 

 the Syftema Naturae of Linn^us, but is mentioned in 

 the appendix animalium at the end of the third volume 

 of that work. 



De Geer in the Acta Stockholmienfia for the year 

 1768 has defcribed and figured this infect ; but his 

 figures cannot be commended either for their ele- 

 gance or accuracy. He has alfo figured and defcribed 

 it in his Hiftory of Infects. 



Ff 



