1015.] 57 



anterior edge of anteunal groove being almost one-fiftli ( c? ) to one-third 

 (?) longer than the distance from the eightli genal spine to the vertex. 

 The head is much more pointed ; the spines of the genal comb and the 

 spine at the apex of the genal lobe longer than in cam's, especially the 

 first spine of the comb. Abdominal stigmata smaller, hindtarsns 

 slenderer, and the stylet also more slender. Bristles on metathoracic 

 epimerum and on hindfemur fewer, while the prothoracic comb usually 

 contains one or two spines more than in canis. 



(J . The non-hairy portions of the margin of the flap are shorter, 

 and the manubrium (fig. 11, M) is much less widened at the apex than 

 in canis. 



Very common on the domestic dog and cat, and abundant on 

 many hosts in Zoological G-ardens. 



B^- Subfamily : Spilopsyllinae. 



Frons with tubercle. Club of antenna symmetrical, regularly 

 segmented all round. First midtarsal segment very little shorter 

 than second. 



V. Genus: SPILOPSYLLFS Baker (1905). 



Frons strongly augulated, with tubercle. Labial palpi with two 

 joints. Genal comb oblique, 7iot horizontal, consisting of 4 to 6 spines. 

 Prothoracic comb with foui'teen to fifteen spines. Mandibles very 

 broad and strongly serrated. 



One species in Europe. 



6. Spilopsyllus cuniculi Dale (1878). 

 (Fig. 6). 



A stationary species, differing from all British fleas by the strongly 

 developed mandibles. Labial palpi very weak. Tubercle of frons 

 situated much nearer to the antennal groove than to the mouth-parts. 



(^ . Clasper bears a large flap, hairy at upper and apical 

 margins, with a short obtuse spine at the apex. Two more processes 

 on the inside of the clasper, which are short and form a pair of 

 nippers, nearly as in irritans and erinacei. 



$ . Stylet very short. Head of receptaculum seminis round, 

 rather longer than broad, tail slender and much larger than the head. 



Common on the rabbit (Oryctolagus cuniculus) and the hare 

 {Lepus europaeus), especially on the ears. Also found on the wild 



