Trombidiformes 233 



2. Acaropsis Moquin-Tandon, 1862 



Type. Jyroglyphus mencourti Moquin-Tandon, 1851 



3. Chelacaropsis Baker, 1949 



Type. Chelacaropsis moorei Baker, 1949 



4. Cheletogenes Oudemans, 1905 



Type. Cheyietus ornatus Canestrini and Fanzago, 1876 



5. Cheletoides Oudemans, 1904 



Type. Syringophilus uncinatus Heller, 1880 



6. Cheletomimus Oudemans, 1904 



Ty^Q. Cheletes berlesei Oudemans, 1904 (= Cheletomimus trux 

 Oudemans, 1904) 



7. Cheletomorpha Oudemans, 1904 



Ty^Q. Acarus lepidopterorum Shaw, 1794 (= Cheyietus venustis- 

 simus Koch, 1839) 



8. Cheletophanes Oudemans, 1904 



Type. Cheyietus montandoni Berlese and Trouessart, 1889 



9. Cheletophyes Oudemans, 1914 



Type. Cheletophyes vitzthumi Oudemans, 1914 



10. Cheletopsis Oudemans, 1904 



Type. Cheyietus norneri Poppe, 1888 



11. Cheletosoma Oudemans, 1905 



Type. Cheletosoma tyrannus Oudemans, 1905 



12. Chelonotus Berlese, 1893 



Type. Chelonotus selenirhynchus Berlese, 1893 



13. Cheyletia Haller, 1884 



Type. Cheyletia laureata Haller, 1884 



14. Cheyletiella C?inQsiYim, 1886 (= Ewmge//a Vail and Augustson, 1944) 

 Type. Cheyietus parasitivorax Megnin, 1878 



15. Eucheyletia Baker, 1949 



Type. Eucheyletia bishoppi Baker, 1949 



16. Eutogenes Baker, 1949 



Type. Eutogenes foxi Baker, 1949 



17. Neoeucheyla Radford, 1950 (= Eucheyla Berlese, 1913. nom. 



praeocc. ) 

 Type. Cheyletia {Eucheyla) loricata Berlese, 1913 



18. Neocheyletiella Baker, 1949 



Type. Neocheyletiella rohweri Baker, 1949 



Discussion: These mites develop normally from egg, larval, and 

 nymphal stages to adults. Nymphs may have more dorsal plates than 

 adults, in the genus Cheyietus the male often is dissimilar from the 

 female in the nature of the gnathosoma. In these species the palpi are 

 greatly elongated and have few or no basal teeth on the palpal claw; 



