ON THE GENUS AMPHIPSYLLA. 403 



described and presumably also in kuznetzovi. The seventh 

 sternite of rossica and sibirica has not been described or figured. 

 The genus occurs from France to China, and is also repre- 

 sented in Canada. 



1. AMPHIPSYLLA SHELKOVNIKOVI, Wagn. (1909). 



Amphipsylla shelkovnikovi, Wagner, Mitt. Kaukas. Mus. iv. 

 3, p. 197, fig. 2, and p. 201 (1909) ; id., Rev. Kusse Ent. xii. 

 p. 578, fig. 4 (1912). 



Only the female is known. 



The seventh abdominal sternite, according to Wagner's figure, 

 is truncate and slightly incurved. The eighth tergite bears the 

 usual 2 + 1 apical bristles, 2 or 3 submarginal ventral ones, and 

 above them 4 to 6 (in Wagner's figure 3) lateral bristles, the 

 oblique vertical bristles appearing to be much reduced. 



Lenkoran, off Cricetus phceus. 



2. Amphipsylla kossica, Wagn. (1912). 



Ctenopsylla sibirica, Wagner, Hor. Soc. Ent. Ross. xxxi. 

 p. 578 (1898) (partim). 



Amphipsylla sibirica, id., Mitt. Kaukas. Mus. iv. 3, pp. 197 

 and 201 (1909) (partim). 



Amphipsylla rossica, id., Rev. Russe Ent. xii. p. 576, fig. 3 

 (1912). 



Only the female is known. 



The seventh sternite is not described. This is possibly the 

 same species as thoracicus, or as the one described below from 

 Bohemia and Turkestan. 



Charkow, Russia, off Putorius vulgaris and a rodent. 



3. Amphipsylla thobacicus, Roths. (1911). 



Palceopsylla sibirica, Rothschild (nee Wagn. 1898), Nov. Zool. 

 xvi. p. 68, no. 10 (1909). 



Ceratophyllus thoracicus, Rothschild, Ann. Sci. Nat. (9) xii. 

 p. 210, fig. 3 (1911). 



Only the female is known. 



In the type specimen the eighth abdominal tergite bears on 

 the outer surface only one apical bristle instead of two on both 



2i2 



