I once obferved thefe infects in great plenty on the 
onifeus 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 infeds at moft 
feafons of the year, and which is well known to every 
obferver of infeds. I fhould obferve that the acarus 
vegetans does not occur under the genus acarus in 
theSyftema 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 Ada Stockholmienfia for the year 
1768 has deferibed and figured this infed ; but his 
figures cannot be commended either for their ele¬ 
gance or accuracy. He has alfo figured and deferibed 
it in his Hiftory of Infeds. 
