GAMASIDS. 



177 



CASE material resemblances elsewhere, that we feel constrained to 

 XI. . 



remove them from the Pteroptidse to the Sarcoptid?e, alongside 



of Myobia. When we come to them, we shall give our reasons 

 for doing so more in detail. 



The sub-family divested of them may be divided into two 

 sections, those which are so constructed as to attach them- 

 selves by the inferior margin of the body all round, like a 

 limpet to a rock, and those which are not so organised. 

 The first of these sections constitutes the genus Periglischnis 

 of Kolenati, and is also characterised by the posterior end of 

 the body being more or less baggy. 



Section I. — Adhering ey the edge of the body. 



Periglischrus rhinolophinus {Koch. Arachnid, 38, tab. 21). (Periglisclirus 

 asema, Kolenati, Sitz. Ak. Wiss. Wien. 1858, p. 81). 



Kolenati's species seems to be the same as Koch's. It is 

 yellowish white in colour, and is found on Rhinolophus ferrum- 

 equinum throughout Europe. 



Periglischrus caligus {Kokitati, Sitz. Akad. Wiss. Wien. 1858, p. 79). 



Perigflischnis rhinolophinus. Copied from Kocli's 

 Ubersicht. o*ooo6 of a Parisian mttre in lentjth. 



Periglischrus caligus. Copied from Kolenati, 

 o'ooii of a Parisian metre in lengtli. 



A Brazilian species found on the wing of Glossophaga amplexi- 

 caudata. It is dull yellow. 



