250 A. E. GIBBS ANI. F. J. BARKAUD 



species marked * are not coutaiued iu Mr. Verrall's British list, 

 or have only been doubtfully included, and it is probable that 

 when these are examined by specialists many will prove to be 

 known as British species under a different name. 



A few records have been extracted from papers in our 

 ' Transactions,' the back volumes of which have been searched 

 for the purpose. In these cases the short title ' Watford Trans.' 

 or ' Herts Trans.' follows the name of the observer. For the 

 records from St. Albans, unless otherwise indicated, Mr. Gibbs 

 (A. E.G.) is responsible; those flies taken in his own garden 

 have the locality given as " Kitchener's Meads." 



The Hon. N. C. Rothschild has drawn our attention to the fact 

 that several species of fleas which undoubtedly occur in the 

 County do not appear to have been captured in it, that of the 

 badger and of the common domestic pigeon, for instance, being 

 so far unobserved. 



There are doubtless many common species of Diptera to be 

 met with in the County which are as yet unrecorded, and we 

 shall be glad to receive any information which will enable us to 

 extend the present list. 



ORTHORRHAPHA. 

 NEMATOCEEA. 



PULICID^. 



The following species of Pulicidse have been observed by the 

 Hon. N. C. Eothschild at Tring :— 



Pulex irritans, L. C. hirundiuis. Curt, (from 

 Ctenocephalus canis, Curt. house-martin). 



C. felis, Bouche. C. fasciatus, Bosc. 



C. erinacei, Bouche. C. mustelse, Dale. 



Spilopsyllus cuniculi, Dale. C. penicilliger, Gruhe. 



Ctenophthalmus sorecis, Dale. C. garei, Bothsch. 



C. pentacanthus, Bothsch. (also C. stvx, Bothsch. 



at Felden by Mr. A. Piffard) . C. Walkeri, Bothsch. 



C. agyi-tes, Heller. Sub-sp. C. gallinulse, Dale. 



nobilis, i^of/iscA,. (from water- C. fringillse, Walker. 



vole). Ischnopsyllus elongatus, Curt. 

 C. bisoctodentatus, Kolen. (from noctule bat). 



C. dasycnemus, Bothsch. I. octactenus, Kolen. (jubatus, 

 Typhloceras poppei, Wagner. Wajgner') (especially from 



Ctenopsyllus musculi, Duges. pipistrelle). 



C. spectabilis, Bothsch. I. simplex, Bothsch. 

 Hystrichopsylla talpse. Curt. ( ? octactenus, Wagner, nee 



Ceratophyllus sciurorum, Kolen.) (from Natterer's bat) . 



Bouche. I. pentactenus, Kolen. 



C. gallinse, Schrank. I. liexactenus, Kolen. 



