Family Pulicidae Stephens 15 



eral structure essentially as in the male. Head of the recepta- 

 culum seminis rounded, much shorter than the tail. For further 

 details concerning the structure of the female genitalia, see 

 Plate IV, fig. 15. 



Records. IOWA — Ames, 1935, on "house-rat," female; May, 

 1934, on "cottontail," male; December 6, 1934, on "red fox," 

 male and female (R. L. Roudabush) ; Hawarden, May, 1938, "in 

 house," male and female. OKLAHOMA — no more specific 

 locality, on "rabbit," male and female. 



Eastern hosts. "House-rat," "Cottontail," "Red Fox," 

 "Rabbit." 



Eastern localities. Iowa, Oklahoma. (This species is known 

 to occur in several western states. Iowa appears to be its 

 eastern limit.) 



Type material. Male and female from near Grand Canyon, 

 Arizona, on "Lepus species," in the United States National 

 Museum. 



Hoplopsyllus lynx (Baker) 

 (Plate IV, figs. 11, 13) 



1904 Pulex lynx Baker, Proc. United States Nat. Mus., 27:383, PI. X, figs. 

 7-11, PI. XI, figs. 1, 2. 



1905 Hoplopsyllus lynx Baker, Proc. United States Nat. Mus., 29: 130. 

 1929 Hoplopsyllus glacialis lynx Jordan, Nov. Zool., 35:175. 



1937 Hoplopsyllus glacialis lynx Jordan, Nov. Zool., 40:283. 



Male. Chaetotaxy of the head and general structure essen- 

 tially as in H. affinis. The species differs particularly in the 

 posterior process of the clasper which is much longer than in 

 H. affinis. The anterior process bears about twelve long stout 

 bristles. For further details, see Plate IV, fig. 13. 



Female. Chaetotaxy and general structure essentially as in 

 the male. Receptaculum seminis differing from that of H. 

 affinis particularly in the shape of the head, which is more or 

 less oval and longer than wide, rather than rounded and about 

 as long as wide. For further details concerning the structure of 

 the female genitalia, see Plate IV, fig. 11. 



Eastern hosts. American Varying Hare {"Lepus ameri- 

 canus") , Canada Lynx ("Lynx canadensis") . 



Eastern localities. Maine and New Hampshire. 



Type material. Male and two females from Moscow, Idaho, 

 on "Lynx canadensis" in the United States National Museum. 



