10 



Trans. Acad. Sci. of St. Louis. 



TABLE I. 



Table of Habits of Mites. 



Family 



Feee 



Semi- 

 paeasitic 



Parasitic 



Only laevak 

 parasitic 



eupodidab 

 Bdellidae 

 Cheyletidae 



Caeculidae 

 Tetbany- 



CHIDAE 



Erythbaei- 



DAE 



Rhyncholo- 



PHIDAE 

 rsOMBIDIIDAE 



Hydrachni- 



DAB 



Halacabidae 



ixodidae 



Argasidae 



Debmanys- 



8IDAE 



Gamasidae 



All genera 

 All genera 

 Cheyletus 



Caeculus 

 only genus 



Caligonus 



Erythraeus 



Anystis 



Some of the 

 genera 



Iphlopis 



Epicrlus 

 Greeniella 

 Macrocheles 

 (mostly) 

 Celaenopsis 

 Megisthanus 

 An:ennopho- 

 ru3 



Cheyletiella 



Bryobia 

 Raphignathus 

 Neophyllobius 

 Tenuipalpus 



Laelaps 



Myobia 

 Harpyrhyn- 



chus 

 Psorergates 

 Picobia 

 Syringo- 



philus 



Tetranychus 

 Stigmaeodes 

 Stigmaeus 



Gekobia 



Atax 



All genera 

 All genera 

 All genera 



Haemogama- 



SU3 



Raillietia 



All genera 



All genera 

 All genera 



except Atax 

 Most of the 



family 



