202 THE CANADIAN KNToMOU KilST. 



Genus Odontopsyllus, Baker. 

 23. — Odontopsyllus, spec, nov., Fox. 

 1909. — Fox, Entom. News, XX, p. 11. Recorded as Charlottensis. 



Rothschild pronounced it a new species. 

 Hosts. — Field mouse, Microtia Californicus ; nest of wood rat, 



Neotoma sp. 

 Region. — San Francisco County. 



24. — Odontopsyllus IVy/uaui, Fox. 

 1909. — Fox. To be published in Ent. News. 

 Host. — California mouse, Microtus Californicus. 

 Region. — San Francisco County. 



25. — Corypsylla oruatus, Fox. 



1909. — Fox, Entom. News, XX, p. 11. 



Host. — California mole, Scapanus Californicus. 



Region. — San Francisco County. 



Genus Spilopsyllus, Baker. 

 26 — Spilopsyllus iturqualis, Baker. 



1909. — P. A. Surgeon Geo. W. McCoy. Hitherto unrecorded. 

 Host. — Bachman brush hare, Lcpus BacJimani. 



Family Ctenopsylud.e, Baker. 

 Genus Ctenopsyllus, Kolenati. 

 27. — Ctenopsyllus musculi (Duges), Wagner. 

 1908.— Mitzmain, Entom. News, XIX, p. 382. 

 Hosts. — House mouse, Mus musculus ; black rat, Mus rattus ; brown 



rat, Mus Norvegicus ; field mouse, Microtus Californicus. 

 Region. — San Francisco Bay region. 



Family Hystrichopsyi.lid^e, Baker. 

 Genus Hystrichopsylla, Taschenberg. 

 28. — Hystrichopsylla dippici, Roth. 

 1909. — Fox, Entom. News, XX, p. 11. Recorded as a new species. Dr. 



Fox sent specimens to Mr. Rothschild, who identified them. 

 Hosts. — California field mouse, Microtus Californicus ; nest of wood rat, 



Neotoma sp. 

 Region. — San Francisco County. 



29. — Dolicopsyllus Bluet, Fox. 



1909. — Fox, Ent. News, XX, p. 195. 



Host. — California weasel, Putorius xanthogenys. 



Region. — San Francisco County. 



