Mesostigmata 63 



praeendopodal plate. The anal opening is subterminal or terminal on 

 a small projection. The peritremes and stigmata are frequently dorsal 

 rather than ventral. 



Genera: 



1. Spinturnix v. Heyden, 1826 (= Pteroptus Dufour, 1832 and Diplo- 

 staspis Kolenati, 1857) 



Type. Spinturnix myoti Kolenati, 1856 (see Opinion 128 of the Inter- 

 national Commission on Zoological Nomenclature) 



2. Ancystropus Kolenati 1856 (= Leiostaspis Kolenati, 1857) 

 Type. Ancystropus zeleborii Kolenati, 1856 



3. Meristaspis Kolenati, 1857 



Type. Meristaspis lateralis Kolenati, 1857 



4. Periglischrus Kolenati, 1857 



Type. Periglischrus caligus Kolenati, 1857 



5. Tympanospinctus Berlese, 1918 



Type. Tympanospinctus paradoxus BqyXqsq, 1918 



Discussion: Spinturnicids have been found almost exclusively on bats. 

 The one exception, Tympanospinctus paradoxus, v^as found on Cras- 

 sarchus jasciatus. It is impossible to tell from Berlese's description 

 whether or not T. paradoxus is in reality a spintumicid, but since he 

 assigned it to this family it probably is. Species of the family have 

 been found on bats all over the world. The genus Spinturnix gives 

 birth to living young. The family is not known to be of any medical 

 or economic importance. 



References: 



Hirst, S. 1927. Note on Acari, mainly belonging to the genus Spinturnix 

 von Heyden. Proc. Zool. Soc. London. Ft. 11:323-338. 



Vitzthum, H. G. 1931. Neue parasitische Fledermaus-milben aus Vene- 

 zuela Ziet. f. Parasitenk. 4:1-47. 



Ascaidae Oudemans, 1905 



Figure 49 



Diagnosis: Ascaids are distinguished bv -the presence of a bifurca te 

 seta at the base of t he palpal tarsus and a dorsal plate that is divided 

 i nto an anterior and po stprior sert ion of a p2I oximately_ec iuaLdimen- 

 sions. The tarsi of all legs have pretarsi, caruncles, and claws. The 

 female genital plate is truncated or rounded anteriorly and is sepa- 



