88 Fleas of Eastern United States 



(Plate XXII, fig. 110). Receptaculum seminis essentially as in 

 P. hesperomys. 



Records. MAINE— Mount Katahdin, August 26, 1928, on 

 "Evotomys gapperi ochradelus," male and female (F. Harper) . 

 MARYLAND— College Park, February 17, 1932, female (R. 

 Greenfield). MASSACHUSETTS— Ashburnham, October 12, 

 1927, female (F. Harper). NEW HAMPSHIRE — Mount 

 Chocorua, Carroll County, October 1, 1926, female (F. 

 Harper) . 



Eastern hosts. Opossum ("Didelphis virginiana") , Hairy- 

 tailed Mole (Parascalops breweri (Bachman) ) , Short-tailed 

 Shrew ("Blarina brevicauda') , Meadow-mouse ("Microtus 

 pennsylvanicus") , Red-backed Mouse ("Evotomys gapperi") . 



Eastern localities. Maine, Maryland, Massachusetts, New 

 Hampshire, New York, Pennsylvania. 



Type material. Female holotype from Rolling Rock Club, 

 Ligonier, Pennsylvania, on "Didelphis virginianus" in the N. C. 

 Rothschild Collection (British Museum) . 



CTENOPSYLLUS KOLENATI 

 Ctenopsyllus Kolenati, 1863, Horae Soc. Ent. Ross., 2:37. 

 Genotype: Pidex segnis Schonherr 



Head angulate in front, the frontal tubercle absent. Frons 

 with two or more spiniforms near the frontal angle. Eye 

 vestigial. Genal ctenidium consisting of four unequal spines. 

 Three or four antepygidial bristles present on a side. Posterior 

 margin of the hind tibia armed with a series of about fourteen 

 medium-sized bristles, among which are three or four long 

 bristles (Plate XXIV, fig. 123). Fifth tarsal segment of each 

 leg armed with four pairs of lateral plantar bristles and a basal 

 submedian pair. 



This genus is represented in the East by a single introduced 

 species parasitic on rats and mice. The species is not uncommon 

 in the southeastern states but has not as yet penetrated to the 

 interior, according to the records available. It is said to stand 

 alone among rodent fleas in refusing to attack man. 



Ctenopsyllus segnis (Schonherr) 



(Plate XXIV) 



1811 Pulex segnis Schonherr, Kongl, Svenska Vetenskakad. Nya. Handl. 



(2nd s.), 32:98, PI. V, figs. A, B. 

 1832 Pulex muscnli Duges, Ann. d. Sci. Nat. (1st s.), 27:163. 



