NO. 1361. REVISION OF AMERICAN SIPHONAPTERA— BAKER. 455 



1874. RiTSEMA, Regensb. Corresp., XXVIII, \>. 7S. {Ceratoplii/llns I'lonyatus.) 

 1880. RiTSEMA, Zeitschr. f. ges. Naturwiss., LIII, p. 182. {CeratophylluH elon- 



gatus. ) 

 1898. Wagner, Horpe Soc. Ent. Ross., XXXI, p. 82, pi. ix, fig. 5. {Ceratop- 



sylla subobscu7'a. ) 

 1898. Rothschild, Novitates Zool., V, p. 542, pi. xvi, figs. 6, 8, 10. 



Host: Pterygistes noctula. 

 Habitat: Europe. 



CERATOPSYLLUS HEXACTENUS Kolenati. 



1856. Kolenati, Paras, d. Chiropt., p. 51. 



1857. Kolenati, Wiener Ent. Monats., I, p. 66. 



1860. Kolenati, Monog. d. europ. Chiropt., pp. 122, 131, 138, and 142. 



1863. Kolenati, Home Soc. Ent. Ross., II, p. 41, fig. 11. Hosts, " Pkrotus miritus, 



Vespnugo discolor, Rhinoloplms hipposideros, Synotus barbaslellus, ]^es2ier- 



tilio murums, VespertiUo capacinii." 



1873. RiTSEMA, Tijds. v. Entomol., p. Ixxxv. 



1874. RiTSEMA, Regensb. Corresp., XXVIII, p. 79. 

 1880. RiTSEMA, Zeitschr. f. ges. Naturwiss., LIII, p. 184. 



1880. Taschenberg, Die Flohe, p. 89. ( Typhlopsylla hexactena. ) 

 1895. Baker, Canad. Ent., XXVII, p. 189. {Typhlopsylla hexadenus.) 

 1898. Wagner, Horse Soc. Ent. Ross., XXXI, p. 31, pi. ix, fig. 19. 



Hostn: Plecotus auritus^ Yes])et^tUio murinus^ Rhinolojjhus Jdpposide- 

 r<9.s, Barhastella harbastellus^ Myotis myofis, and 3fyotis capacinii. 

 Hahitat: Europe. 



CERATOPSYLLUS INCERTUS Rothschild. 

 1900. Rothschild, The Entom. Record and Journ. of Variation, XII. No. 2. 



Hosts: Nyctinoinus jugular is and N. hrachypterus. 

 Habitat: Madagascar and Sierra Leone. 



CERATOPSYLLUS INTERMEDIUS Rothschild. 



1898. Rothschild, Novitates Zoologicpe, V, p. 543, pi. xvii, fig. 15. Host, 'Tfs- 

 perugo serotinus." 



Host: VespertiUo serotinus. 

 Habitat: England. 



CERATOPSYLLUS JUBATUS Wagner. 



1898. Wagner, Horte Soc. Ent. Ross., XXXI, p. 30, pi. ix, figs. 20 and 22. 



Host, ' ' Vesperugo pip istrellus. ' ' 

 1898. Rothschild, Novitates Zoologicfe, V, p. 544. 



Host : Pip istrelhts pipistrellus. 

 Habitat: Europe. 



CERATOPSYLLUS OBSCURUS Wagner. 

 1898. Wagner, Hone Soc. Ent. Ross., XXXI, p. 30. Host, " Vesperugo discolor.'' 



Host: VespertiUo niurinus. 

 Habitat: Russia. 



Proc. N. M. vol. xxvii~03 30 



