Animal Ecology of King^ 8 College Ghap el ^ Cambridge, 243 



ACARINA. 



Tyroglyphidae. 



GlycypJiagus sp. 



A species belonging to this genus is exceedingly abundant 

 in the nests, and also, to a lesser extent, in the general refuse. 

 These feed on particles o£ organic debris. 



Aleurohius farincBj De Gear. 



Occurs in the same situation, and is similar in habits and 

 food to Olycyphagus. 



Liiponys&us sp. 



Found in moderate numbers amongst refuse. Tiiis is a 

 predaceous species, feeding on the smaller refuse-feeders. 



Dermanyssus spp. 



Two species were found parasitic on pigeons, and were 

 most abundant during the summer. 



Several specimens of an undetermined Gamasid mite were 

 taken on the barbastelle bat, chiefly on the head. These are 

 blood-sucking parasites. 



ArgasidsB. 



Argas reflexusj Fischer. Pigeon Tick. 



Several specimens were found hiding in crevices of the 

 masonry, in every case close to a pigeon's nest. It is a 

 blood-sucking parasite of the pigeon. This is the second 

 recorded locality in Great Britain, the species hitherto having 

 been found only in Canterbury Cathedral. (See * Nature/ 

 vol. ex. p. 313.) 



In SECT A. 



Lepidoptera. 



Vanessa io. Peacock Butterfly. 



Vanessa urdca^. Small Tortoiseshell Butterfly. 



Hibernating specimens of both species not uncommon. 



Tineidaa. 



Larvae of one or more species commonly found feeding in 

 the refuse. 



16* 



