Chapter IV page 137 



The Suborder Ixodides Leach, 1815 



ArgasidaeG. Canestrini, 1890 137 Nuttalliellidae Schulze, 1935 140 



Ixodidae Murray, 1877 141 



Chapter V page 146 



The Suborder Trombidiformes Reuter, 1909 



Tetrapodili Bremi, 1872 147 



EriophyidaeNalepa, 1898 147 



Tarsonemini Canestrini 



and Fanzago, 1877 159 



Podapolipodidae Oudemans, 1931 159 



Scutacaridae Oudemans, 1916 162 



Pyemotidae Oudemans, 1937 164 



Tarsonemidae Kramer, 1877 168 



Prostigmata Kramer, 1877 170 



Eupodidae Koch, 1842 174 



PenthalodidaeThor, 1933 177 



BdellidaeDuges, 1834 178 



Rhagidiidae Oudemans, 1922 181 



Cryptognathidae Oudemans, 1902 183 



Labidostommidae 



Oudemans, 1904 184 



Ereynetidae Oudemans, 1931 186 



Paratydeidae Baker, 1949 188 



Speleognathidae Womersley, 1936 189 



Tydeidae Kramer, 1877 190 



Cunaxidae Thor, 1902 193 



Lordalychidae Grandjean, 1939 195 



Sphaerolichidae Grandjean, 1937 

 Nanorchestidae Grandjean, 1937 

 Pachygnathidae Kramer, 1877 

 Terpnacaridae Grandjean, 1939 

 Alicorhagiidae Grandjean, 1939 

 Raphignathidae Kramer, 1877 

 Pomerantziidae Baker, 1949 

 Pterygosomidae Oudemans, 1910 

 Caeculidae Berlese, 1893 

 Tetranychidae Donnadieu, 1875 

 Phytoptipalpidae Ewing. 1922 

 Teneriffiidae Thor, 1911 

 Pseudocheylidae Oudemans, 1909 

 Anystidae Oudemans, 1902 

 Myobiidae Megnin, 1877 

 Cheyletidae Leach, 1814 

 Demodicidae Nicolet, 1855 

 Erythraeidae Oudemans, 1902 

 Smaridiidae Kramer, 1878 

 Calyptostomidae Oudemans, 1923 

 Trombidiidae Leach, 1815 

 Trombiculidae Ewing, 1944 



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XI 



