94 Fleas of Eastern United States 



March 1, 1932, on same host, male, three females; Takoma Park, 

 April 19, 1932, on same host, male, four females; Burnt Mills, 

 March, 1932, on same host, numerous specimens (R. Green- 

 field). MASSACHUSETTS — Edgartown, June 10, 1936, on 

 "Microtus pennsylvanicus," female (F. C. Bishopp) . 



Eastern hosts. Short-tailed Shrew (Blarina brevicauda 

 talpoides (Gapper) , etc.) , Meadow-mouse ("Microtus penn- 

 sylvanicus") , White-footed Mouse ("Peromyscus leucopus") , 

 Water Shrew ("Sorex palustris albibarbis") . 



Eastern localities. Connecticut, District of Columbia, 

 Maine, Maryland, Massachusetts, New York, Pennsylvania, 

 Virginia. 



Type material. Male holotype from Washington, D. C, on 

 "Blarina brevicauda" in the United States National Museum. 



During spring and summer this species occurs abundantly on 

 shrews in the East. In the Middle West, however, it is replaced 

 by the following species: 



Doratopsylla curvata Rothschild* 



(Plate XXVI, figs. 133, 136, 138) 



1915 Doratopsylla curvata Rothschild, Ectoparasites, 1:25, figs. 28, 29. 



1925 Doratopsylla curvata Ewing, Jour. Parasitology, 12:43. 



1929 Doratopsylla curvata Ewing, Manual External Parasites, p. 158, fig. 89. 



1929 Doratopsylla (Corrodopsylla) curvata Wagner, Konowia, 8:317. 



1929 Doratopsylla curvata Jordan, Nov. Zool., 35: 172. 



1933 Doratopsylla curvata Stewart, Jour. New York Ent. Soc, 41:260. 



Male. Preantennal region of the head with two rows of 

 bristles; upper row consisting of five short bristles, lower row 

 consisting of three bristles, of which two are long and one is 

 short. Between the two long bristles are four short setae. 

 Fourth spine of the genal ctenidium separated from the genal 

 border, extending obliquely backward. Genal process long and 

 slender, very conspicuous, extending further posteriorly than 

 the last genal spine. Postantennal region of the head armed 

 with three rows of bristles, each row consisting of five or six 

 bristles. Pronotal ctenidium consisting of about nine spines on 

 a side. Each abdominal tergite armed with two rows of bristles. 

 In addition, each of the first four tergites bears a long spinelike 

 dorsal bristle. Tergite VII produced into an acuminate heavily 

 sclerotized process which extends between the two sets of three 

 antepygidial bristles. Modified segments: Genitalia differing 

 markedly from those of D. blarinae. Upper portion of the 



* Wagner (1929) is of the opinion that this species represents a distinct 

 subgenus to which he has given the name, Corrodopsylla. 



