86 Fleas of Eastern United States 



tapering apically. Posterior margin of the movable finger armed 

 with three robust bristles and two or three smaller ones, ante- 

 rior margin armed with about five weak bristles. Apex of 

 posterior arm of sternite IX rather abruptly pointed, its poste- 

 rior margin with three long bristles and a number of small 

 ones. For further details of the structure of the male genitalia, 

 see Plate XXIII, fig. 119. 



Record. NEW HAMPSHIRE — Mount Chocorua, Carroll 

 County, October 1, 1926, on Peromyscus maniculatus gracilis 

 (LeConte) , female (F. Harper) . 



Eastern hosts. White-footed Mouse (Peromyscus leucopus 

 noveboracensis (Fischer), etc.), "Kingfisher's nest." 



Eastern localities. New Hampshire, New York, Pennsyl- 

 vania, Tennessee. 



Type material. Female holotype from Franconia, New 

 Hampshire, on "Peromyscus" in the United States National 

 Museum. 



Peromyscopsylla scotti I. Fox 



(Plate XXII, figs. Ill, 112, 113) 



1939 Peromyscopsylla scotti I. Fox, Proc. Ent. Soc. Washington, 41:49. 

 PI. 6, figs. 4, 5. 



Female. Chaetotaxy of the head essentially as in P. 

 hesperomys. Lower of the two genal spines extending only 

 slightly more distad than the upper. Genal process spatulate 

 and prominent (Plate XXII, fig. Ill) . Each abdominal tergite 

 armed with one to three short, stout teeth on a side, the anterior 

 tergites usually with more teeth than the posterior. Four ante- 

 pygidial bristles present on a side. Sternite VII unlike that of 

 P. hesperomys, without a deep sinus, and its margin irregular 

 in outline. Receptaculum seminis of characteristic shape; tail 

 about as long as the head which is about twice as long as wide. 

 For further details concerning the structure of the recepta- 

 culum seminis, see Plate XXII, fig. 113. 



Male. Chaetotaxy of the head and general structure as in the 

 female. Modified segments: Process of the clasper rounded, 

 armed with three or four slender bristles. Movable finger 

 rounded apically with three robust bristles and a number of 

 smaller ones. Posterior arm of sternite IX with numerous setae 

 on the posterior margin. For further details concerning the 

 structure of the male genitalia, see Plate XXII, fig. 112. 



Records. MASSACHUSETTS — Edgartown, November 13, 



