ACARINA PARASITES. 



641 



pits, mouth, and eyes." From an examination of the 

 structure of these ^Darasites, Dr. Burnett is of opinion that 



Fig. 295. 



1, Acarus of Beetle. 2, Acariis of Fly. 3, Acariis of Clothes-Moth. (The 

 circles enclose each about life size.) 



they should be placed in an order by themselves, closely 

 allied to Insecta ; the mandibulate parasites occupying the 

 hifihest, and the haustellate the lowest, position in the 

 order : thus confirming to some extent the observations 

 made by Mr. Denny. 



There is a remarkable species of acarus described by 



T T 



