44 Fleas of Eastern United States 



further details concerning the structure of the female genitalia, 

 see Plate XI, fig. 53. 



Records. ILLINOIS— Lamont, April 22, 1935, on "Citellus 

 tridecemlineatus," male and female (R. Komarek) ; Savoy, 

 April 23, 1933, on "Citellus jranklini," male, two females; 

 Urbana, April 10, 1934, on "Citellus tridecemlineatus," female, 

 two males; Rock Island, June 8, 1932, on same host, male (Ross 

 and Mohr) ; Aledo, May 8, 1932, on same host, female (H. Ross) . 

 IOWA — Ames, July, 1935, on "Franklin's ground squirrel," 

 male and female; July, 1935, on "13-striped ground squirrel," 

 three males, three females (R. L. Roudabush) ; same locality, 

 May 1, 1938, on "gray squirrel," male and female (Mahoney) ; 

 Luxemburg, November 23, 1937, on Glaucomys volans volans 

 (Linnaeus) , female (T. Scott) ; Ruthven, July, 1938, on "13- 

 striped ground squirrel," numerous specimens (E. R. Becker 

 and P. C. Waters) ; Lake Okoboji, August 15, 1916, on same 

 host, male (L. L. Buchanan) . MINNESOTA— Rapidan, 1937, 

 no host given, male, eight females (W. P. Mohr) . WISCONSIN 

 — Kenosha, October 8, 1936, on "Citellus tridecemlineatus," 

 male, two females ( R. Komarek) . 



Eastern hosts. Thirteen-striped Ground Squirrel ("Citellus 

 tridecemlineatus") , Franklin's Ground Squirrel ("Citellus 

 jranklini") , "Gray Squirrel," Flying Squirrel (Glaucomys 

 volans volans (Linnaeus) ) . 



Eastern localities. Illinois, Iowa, Minnesota, Nebraska, 

 Wisconsin, (Idaho, Colorado) . 



Type material. Two females from Lincoln, Nebraska, female 

 from Fort Collins, Colorado, and a male from Ames, Iowa, in 

 the United States National Museum. 



OROPSYLLA WAGNER 

 Oropsylla Wagner and Ioff, 1926, Rev. Microbiol, and Epidemiol., 5: 86. 

 Genotype: Ceraiophyllus silantiewii Wagner 



Frontal tubercle small and acuminate. Labial palpus long, 

 extending beyond the apex of the coxa by more than a segment. 

 Pronotal ctenidium consisting of about nine spines on a side. 

 Other general structural details as in Ceratophyllus Curtis. 

 Movable finger of the males with long bristles but without 

 spiniforms. 



This genus is represented in the East by a single species 

 which has the woodchuck as its normal host. 



