100 [March, 



The Flea, p. Ill (1913); Waterst., Ent. Mo. Mag. (2), XXV, p. 159 (1914) 

 ( Scottish records ) . 



Hab. : Europe. Hosts : Seiurus vulgaris, Miiscai-dinus avellanarius, accident- 

 ally on Martes and Mustela. 



23. GEBATOPHYLLUS PENICILLIGER Grubb (1852). 



Puiex penicilliger Grube, Middend. Sibir. Eeise, II, 1, p. 500, pi. 32, fig. 9 

 (1852) (partim) ; Wagn., Hor. Soc. Ent. Eoss., XXXI (1897), p. 569, pi. 8, fig. 6 

 (1898) ((J ^= Ceratophyllus x>6nicilliger). 



Trichopsylla penicilliger Verrall, List Brit. Dipt., I, ed. 2, p. 7 (1901). 



Ceratophyllus penicilliger Eothschild, Victoria Hist. Engl., Herts., I, p. 170 

 (1902) ; Waterst., Ann. Scot. N. H. Soc, p. 212 (1906) ; Gibbs and Barr., Trans. 

 Herts. N. H. Soc, XIII, p. 250 (1908); Waterst., Ann. Scot. N. H. Soc, 

 p. 227 (1909) (Stromness) ; Koths., Bull. Ent. Eesearch, I, p. 95 (1910) ; Shipley, 

 Journ. Econ. Biol., VI, p. 19 (1911) : Patton and Cragg, Textb. Med. Entom., 

 p. 456 (1913) ; Eussell, The Flea, p. Ill (1913) ; Waterst., Ent. Mo. Mag. (2), 

 XXV, p. 88 and 160 (1914) (Scottish records). 



Hab. : Europe ; Northern Asia. Hosts : Voles and field-mice, more rarely 

 on rats and small carnivoi'a. 



24. CERAT0PHYLLU8 WALKERI Eoths. (1902). 

 Trichopsylla lagomys Verrall (noc Wagner, 1897), List Brit. Dipt., I, ed. 2 



p. 7 (1901). 



Ceratophyllus walkeri Eothschild, Ent. Mo. Mag. (2), XIII, p. 225, pi. 4, 

 figs. 4, 5, 7 (1902) (Kent, Sussex, Herts, Bucks); Waterst., Ann. Scot. N. H. 

 Soc, p. 212 (1906) ; Evans, ibid., p. 241 (1906) (Forth) ; Gibbs and Barr., Trans. 

 Herts. N. H. Soc, XIII, p. 250 (1908) (Tring) ; Waterst., I.e., p. 227 (1909) 

 (Berwickshire); Strickl. and Merrim., Parasit., VI, p. 13 (1913) (Suffolk and 

 Essex); Eiissell, The Flea, p. Ill (1913); Waterst., Ent. Mo. Mag. (2), XXV, 

 p. 160 (1914) (Scottish records). 



Hah. : Great Britain. Hosts : Mustela erminea and nivalis, Evotomys 

 glareolus. 



25. CERATOPHYLLUS MUSTELAE Dale (1878). 

 (?) Pulex martis Walker, Dipt. Brit., Ill, p. 3, no. 5 (1856). 



Pulex mustelae Dale, Hist. Glanvilles Woot,, p. 291, no. 8 (1878) (weasel) ; 

 Eoths., Ent. Mo. Mag. (2), XIV, p. 145 (1903) (=■ Ceratophyllus mustelae Wagner, 

 1898). 



Trichopsijlla mustelae Verrall, List Brit. Dipt., I, ed. 2, p. 7 (1901). 



Ceratopliyllus mustelae Eothschild, Victoria Hist. Engl., Herts., I, p. 170 

 (1902); Godfrey, Ann. Scott. N. H. Soc, p. 119 (1906) (Orkneys); Waterst., 

 ibid., p. 212 (1906); Gibbs and Barr., Trans. Herts. N. H. Soc, XIIL p. 250 

 (19i>8) (Tring); Strickl. and Menim., Parasit., VI, p. 12 (1913) (Suffolk and 

 Essex) ; Eussell, The Flea, p. Ill (1913). 



Hab. : Europe. Hosts : Apodemus sylvaticus, Evotomys glareolus, Mustela 

 erminea, 



