Family Hystrichopsyllidae Tiraboschi 83 



Sabula, November 18, 1937, on Peromyscus leucopus nove- 

 boracensis (Fischer), female (T. Scott). MARYLAND — 

 Bladensburg, March 31, 1901, on "Peromyscus leucopus," male 

 (H. S. Barber) ; College Park, February 17, 1932, on same host, 

 male and female (R. Greenfield) ; Plummer Island, February 

 22, 1928, on same host, female (A. Wetmore) ; February 6, 1927, 

 on same host, female (H. S. Barber) ; January 1, 1930, on same 

 host, female (A. K. Fischer) ; December 30, 1915, on Mus 

 musculus musculus (Linnaeus) , female, two males (R. C. 

 Shannon) ; Kensington, February 22, 1924, on "Microtus penn- 

 sylvanicus," female (H. S. Barber). MASSACHUSETTS — 

 Martha's Vineyard, September 7, 1936, on "Evotomys species," 

 male; Chilmark, October 28, 1937, on Microtus pennsylvanicus 

 pennsylvanicus (Ord) , female; Gayhead, September 25, 1937, 

 on Zapus hudsonius (Zimmerman) , male; October 27, 1937, on 

 Peromyscus leucopus jusus Bangs, female; November 16, 1937, 

 on Microtus pennsylvanicus pennsylvanicus (Ord) , male and 

 female; same data, October 13, 1937, female; same data, October 

 27, 1937, female and male; Edgartown, October 29, 1937, on 

 Peromyscus leucopus jusus Bangs, male and female; October 

 15, 1937, on Microtus pennsylvanicus pennsylvanicus (Ord) , 

 two females (one with two receptacula seminis!); October 13, 

 1937, on "Norway-rat," female; Vineyard Haven, September 11, 

 1937, on Microtus pennsylvanicus pennsylvanicus (Ord) , male 

 (C. N. Smith) . TENNESSEE— Greenbriar, April 18, 1931, on 

 Peromyscus leucopus leucopus (Rafinesque) , male (R. L. 

 Boke). VIRGINIA— East Falls Church, November 17, 1929, 

 male and female; December 4, 1927, two females; January 7, 

 1927, male and female, on "Peromyscus leucopus" (E. A. 

 Chapin) ; Petersburg, April 7, 1933, on same host, female (H. S. 

 Peters) . 



Eastern hosts. Red-backed Mouse ("Evotomys species"), 

 White-footed Mouse (Peromyscus leucopus noveboracensis 

 (Fischer) ) , Meadow-mouse (Microtus pennsylvanicus penn- 

 sylvanicus (Ord) ) , "Cotton-mouse," Jumping Mouse (Zapus 

 hudsonius hudsonius (Zimmerman) ) , "Norway-rat." 



Eastern localities. Alabama, Iowa, Maryland, Massachu- 

 setts, Maine, Tennessee, Virginia. 



Type material. Female holotype from Orono, Maine, on 

 "Evotomys species" in the United States National Museum. 

 Male allotype from Eldon, Iowa, an Glaucomys volans volans 

 (Linnaeus) in the Iowa State College Collection. 



This species is among the largest found in our fauna and finds 



