74 



ARACHNOIDEA, 



CASE Lepronyssus rubiginosus {KoLn. loc. cit.). 

 XI. 



Reddish white, chiefly found on Myotus murinus but also on 

 all other bats that hibernate with it. Moravia and Silesia. 



Lepronyssus lobatus {Kolenati^ loc. cit. 182). 



I 



Lepronyssus rubiginosus. Copied from Kolenati. 

 o'oooS of a'Parisian metre in length. 



Lepronyssus lobatus. Copied from KolenatL 

 o'ooi5 of a Parisian metre in length. 



Cherry red, and with an overlapping after-expansion, inclining 

 to that of Periglischrus in the Pteroptidae. On Myotus murinus 

 in the Moravian Caverns. 



PiMELONYSsus BiscuTELLUS {KohnatL loc. cit, 188). 



This is one of the jointed-shield mites, the 

 shield on the back is, as it were, cut trans- 

 versely across the middle, and on the under 

 side there is a corresponding fold which ob- 

 viously serves as a hinge allowing the body to 

 bend back and forward in a way that could not 

 have been done had there been a stiff shield 

 without joint. On Rhinolophus ferrum-equi- 

 num in the Golubaczer Cavern. 



We shall conclude our notices of the 

 Dermanyssi with a doubtful species. 



Pimelonyssus biscuteLus. 



Copied from Kolenati. 



O'OOOS of a Parisian metre 



in length. 



No. 23. Dermanyssus (?) AGiLis {Robin), (Melichares agilis, Hering, Nov. Act. 

 xviii.). — 23. Enlarged figure of ditto. 



Hering, who figures this species, says that it v^as found on old 

 dates and figs along with Glyciphagus pruncram. The figures 



