i8o 



ARACHNOIDEA, 



CAS] 



Leiostaspis zeleborii {Kolenati in Sitz. Akad. Wiss. Wien. i860, 

 Ancystropus zeleborii, Kolenati in Parasiten der Chiroptem, p. 25). 



Dull yellow, with brown legs, and blackish 

 markings. Found on the eyeHds and eye 

 comers of Xantharpia segyptiaca (seed eating 

 bats) in Egypt \ not rare. 



Sub-family Argasidae. 

 Genus Argas {Latr.), 



The skin in this genus is leathery and 

 flexible, but not smooth, being coarse and 

 covered with granulations or depressions. 

 The anterior part of the body projects over 

 the mouth, so that none of its parts are visible at least in the 

 perfect insect. The first joint of the palpi is larger than the rest. 

 In some species the joints of the legs 

 are more or less nodose, and in the 

 perfect insect there are no caruncles 

 to the claws of the tarsi, although in 

 the young there would appear to be so, at least they are so figured 

 in Audouin's drawing of the young of Argas pipistrell^. 



Leiostaspis zeleborii. 



Copied from Kolenati s fignre. 



0*0009 of ^ Parisian metre in 



length. 



^^ 



Leg and elaw of Argas reflexus. 



No. 37 Argas pipistrell^e {Atcdouin, Ann. Sc. Nat. 1832).— 27. Enlarged sketch 

 of young of ditto from Audouin's figure. 



ArKas pipistrellae (young, under side). 

 Copied from Audouin's figure. - 



Claw of ditto. 

 Copied from Audouin. 



Found on the body of the little pipistrel bat, with its snout 



