Hydrachnellae 



291 



h. Hispidosperchon Thor, 1901 



Type. Sperchon hispicius Thor, 1898 



c. Mixosperchon Viets, 1926 



Type. Sperchon papillosus Thor, 1901 



d. Scutosperchon Viets, 1926 



Type. Sperchon thori Koenike, 1900 

 Sperchonopsis Piersig, 1896 (= Pseudosperchon Piersig, 1901) 

 Type. Sperchon verrucosus Protz, 1896 



Figure 217 Sperchonopsis verrucosa 

 (Protz). Venter of male. (After Mar- 

 shall 1943) 



Figure 218 



Palpus of 

 1936) 



Sperchon cornutiis Viets. 

 male. (After Lundblad 



Anisitsiellidae Viets, 1929 



Figures 219, 220 



Diagnosis: The body of these mites is weak-skinned or armored and 

 has a dorsal suture. Lateral eyes are not placed in capsules, but are 

 separated from each other. The inner side of the palpal femur has a 

 process. Coxal plate iv does not have a large gland pore on the an- 

 terior median corner; tarsi iv are reduced distally and lack claws. The 

 genital organ has two movable plates and three or four pairs of genital 

 suckers. 



Anisitsiellinae Koenike, 1910 



Genera. 



1. 



Anisitsiella Daday, 1905 

 Type. Anisitsiella aculeata Daday, 1905 

 2. Hydrobaumia Halik, 1930 



Type. Hydrobaumia malacensis Halik, 1930 



