APHANIPTERA. 35 



T. assi/iiiiis, Tasch. 



With only three genal spines. 



Infests Sorex vulgaris, Ahcs sylvaticus, Arvicola riparia, and Talpa 

 vulgaris. 



This species is recorded by Saunders/'' but is not mentioned in 

 Verrall's list. 



T. gracilis^ Tasch. 



Body elongated, very slender, and light brown. Head above 

 rectilinear ; three spines not on the cheek, but on the suture dividing 

 the antennary cavity from the front of the head. The spines are 

 straight and directed backwards ; the lowest is the shortest, conical, 

 and blunted ; the second longer and pointed, the longest uppermost, 

 and springing from the front edge of the antennal pit, blunt and 

 tooth-like ; pronotum furnished with nine long bristles, and spines on 

 each side. Abdominal bristles in otie row only ; the second row is 

 represented by one or two bristles only, and are very small. 



This is another British species, mentioned in Verrall's list. 



Curtis also records a flea from the hare (C. leporis), and from the 

 starling (C sturni). Leporis appears to be the same as gonioce- 

 phaliis. 



The FalicidiB tabulate as follows : 



1. Pulex : eyes distinct. 



2. Hystrichopsylla : densely spinose cheeks and clypeus. No 

 eyes, or eyes indistinct. 



3. Typhlopsylla : no eyes, or eyes indistinct. 

 I. Pulex : 



No pro-thoracic comb posteriorly, irritans. 

 Posterior comb present. 



Head without black spines. 



Proth. comb with 26 teeth or more, Aviuin ox gallince. 

 ,, ,, ,, 18 ,, ,, Sciurorum. 



,, ,, ,, 3 ,, on each side, Erinacei. 

 ,, ,, ,, iS „ fasciatus. 



Head with black spines. 



Epistome and cheeks with 6-7 black spines on each 



side, Canis = {t\\'s,. 

 Post, margin of cheeks with 4 black spines, Gonioce- 

 phaliis = Leporis. 



* Ent. Mo. Mag., vol. xxvii., p. 170. 



3—2 



