190 THE CANADIAN ENTOMOLOGIST. 



Typhlopsylla hexacteiius, Kol. 



1856. Kolenati, 1. c, p. 51 (Ceratopsyllus hexactenus). 



Typhlopsylla pentactenus, Kol. 



1856. Kolenati, 1. c, p. 32- (Ceratopsyllus pentactenus). 

 Typhlopsylla dictejius, Kol. 



1856. Kolenati, 1. c, p. 32 (Ceratopsyllus dictenus). 



The above five species of Typhlopsylla are all bat fleas, and have 

 been found on a number of kinds of bats in various parts of Europe. I 

 regret to say that I have not been able to obtain any bat fleas from this 

 side of the water. 

 Typhlopsylla musculi, Duges. 



1832. Duges, Ann. d. Sci. Nat. XXVIII., p. 163 (Pulex musculi). 



1880. Taschenberg, Die Flohe, p. 92 (Typhlopsylla musculi). 



This species has been taken on various mice and rats in Europe. I 

 have seen no fleas from either mice or rats taken in America. 

 Typhlopsylla caucasica, Tschb. 



1840. Motschulsky, Bull. Soc. imp. Moscow, p. 169 (Pulex typhlus). 



1880. Taschenberg, Die Flohe, p. 94 (Typhlopsylla caucasica). 



"Found by Motschulsky on Spalax typhlus in the Caucasian 

 Steppes." 



Typhlopsylla assimilis, Tschb. 



1880. Taschenberg, Die Flohe, p. 95. 



Found in Europe on Sorex vulgaris, Talpa europsea, Mus sylvaticus,_ 

 and Arvicola arvalis. I have specimens from Lincoln, Nebr., taken on 

 mole (Bruner) ; from Ames, Iowa, taken on Scolops argentatus (Osborn) ; 

 and I have found the same species at Lansing, Mich., on the common 

 garden mole. In the male the head above is very slightly concave (as it 

 is in most Pulicidpe), not convex as figured by Taschenberg, nor does the 

 face slope conspicuously downward and backward in either male or 

 female, but meets the cheek margin at little greater than a right angle. 



Typhlopsylla gracilis, Tschb. 



1880. Taschenberg, Die Flohe, p. 96. 



Found in Europe on Talpa europsea and Sorex vulgaris. 



Typhlopsylla fraterna, n. sp. 



I have collected specimens of this very distinct species at Lansing, 

 Mich., on the common garden mole, and have also received a specimen 

 from Prof J. M. Aldrich, collected at Brookings, S. D., the host not given. 



