72 Mites Injurious to Domestic Animals, 



SuB-OEDEB PEOSTIGMATA. 



Family TROMBIDIIDAE. 



Sub-Family Cheyletinae. 



Many of tte mites in this family tave the palpi greatly enlarged. 

 The male sexual orifice is often situated dorsally. 



Fig. 60. 



Protonymph of Dermanyssus gallinae (p. 87), from below, X 14-6. 

 (Original.) 



Some of the Cheyletinae {Cheyletus, etc.) are free-living, predatory 

 forms, being found amongst detritus and elsewhere preying on 

 Tyroglyphid mites or other small arthropods, or they may occur on 

 birds or mammals, either preying on the Analgesid or Listrophorid 



