Family Hystrichopsyllidae Tiraboschi 89 



1856 Ctenophthalmus musculi Kolenati, Die Parasiten der Chiropteren, 

 p. 33. 



1895 Typhlopsylla musculi Baker, Can. Ent., 27: 190. 



1896 Typhlopsylla mexicana Baker, Can. Ent., 28:85. 



1904 Ctenopsyllus mexicanus Baker, Proc. United States Nat. Mus., 27: 430. 



1905 Ctenopsyllus musculi Baker, Proc. United States Nat. Mus., 29:136. 

 1910 Leptopsylla musculi C. Fox, United States Mar. Hosp. Ser., Bull. 



30: 140, PI. IV, figs. 1-5. 

 1914 Ctenopsyllus musculi C. Fox, United States Public Health Ser. Hyg. 



Lab., Bull. 97, PL XV, fig. 26; PI. XX, fig. 54. 

 1925 Leptopsylla musculi C. Fox, United States Public Health Ser., Rep. 



40: 1922. 

 1925 Leptopsylla musculi C. Fox, Insects and Disease of Man, p. 140, fig. 67. 



1928 Leptopsylla musculi Stewart, Cornell Univ. Agric. Exp. Sta., Mem. 

 101, p. 869. 



1929 Leptopsylla segnis Hasseltine, United States Public Health Ser., Rep. 

 44: 583. 



1931 Leptopsyllus musculi C. Fox, United States Public Health Ser., Rep. 

 46: 574. 



1933 Ctenopsyllus segnis Stewart, Jour. New York Ent. Soc, 41:259. 



1934 Ctenopsyllus segnis Shaftesbury, Jour. Elisha Mitchell Sci. Soc, 

 49:256. 



1935 Leptopsylla musculi Vogel and Cadwallader, United States Public 

 Health Ser., Rep. 50:1953. 



Male. Anterior margin of the head with a series of nine 

 bristles, of which two are robust spiniforms. Five other long 

 bristles present, arranged as in Plate XXIV, fig. 125. Preanten- 

 nal region of the head further armed with numerous small 

 setae. Most dorsal of the four genal spines the broadest; the 

 third genal spine the longest. Labial palpus extending more 

 than halfway down the length of the fore coxa. Postantennal 

 region of the head with four rows of bristles, of which the first 

 consists of three or four bristles, the second and third of four 

 or five, and the fourth of six. Pronotum armed with a single 

 row of bristles and a ctenidium of about eleven spines on a side. 

 Meso- and metanotum each armed with three or four irregular 

 rows of bristles. Each abdominal tergite armed with two rows 

 of bristles, one consisting of short bristles and the other of long 

 ones. Modified segments: Dorsal region of the clasper lobular, 

 no distinct process set off. Movable finger rounded at the poste- 

 rior margin and armed with six bristles, of which three are 

 longer than the others. Manubrium rather long and curved 

 distally. Penis broad and bladelike; spring long. Paramere of 

 the penis large and conspicuous. Distal end of the posterior arm 

 of sternite IX expanded, the posterior margin with a number of 



