Sarcoptiformes 381 



chelicerae (Bdellorhynchus), or in legs i and ii and the chelicerae 

 (Falculifer), or in the palpi (Cheiloceras), or in legs iii and iv (Pro- 

 tolichus) . 



The families Falculiferidae, Pterolichidae, and Syringobiidae are 

 included under the Dermoglyphidae since at the present time charac- 

 ters of familial rank cannot be found and, with the characters used by 

 Vitzthum, the families are difficult to key out and are not constant in 

 structure. 



Figure 308 Falculifer rostratus (Buch- 

 holz). Hypopial nymph. (After Hirst 

 1922) 



Genera: 



Figure 309 Falculifer rostratus (Buch- 

 holz). Venter of male. 



1. Dermoglyphus Megnin, 1877 



Type. Dermaleichus elongatus Megnin, 1877 



2. ^Aias/cMc^/o/? Trouessart and Neumann, 1888 

 Type. Dermaleichus landoisii Buchholz, 1869 



3. Anoplonotus Trouessart, 1915 



Type. Pterolichus semaphorus Trouessart, 1886 



4. Avenzoaria Oudemans, 1905 



Type. Dermaleichus totani Canestrini, 1878 



5. Bdellorhynchus TrouesssLTt, 1885 



Type. Bdellorhynchus polymorphus Trouessart, 1885 



