FIG. 93. HUMAN ITCH MITES, Sarcoptes scabei. a. MALE; />. FKMAI.K 



FIG. 94. THE HUMAN- 

 FOLLICLE MITE, Demodex 

 follicu.'ontm VAR hoininis FIG. 95. A HARVEST MITE, I. eft us autuninalis 



