206 



PROCEEDINGS OF THE NATIONAL MUSEUM 



VOL. 106'. 



Durham County: 

 Pennsylvania 



Somerset County: 

 Bradfoi-d County: 



10 



10 

 10 

 10 



10 



2 . . 10 . . 8 . . 2 



2 . . 10 .. 10 .. 2 



2 .. 10 .. 11 .. 



2 . . 10 . . 10 . . 2 . . 10 . 



11 



10 

 10 

 12 



. 7 .. 4 



. 6 .. 6 



. 8 .. 6 



. 6 .. 6 



Ventral setae: Poststernals anterior to anus generally with 

 fine setules ; posterior to anus similar to dorsals. Data from eight 

 specimens : Number of first sternals, 2 ; of second sternals, 2 ; of 

 poststernals, 34 to 41. Length of first sternals, 38 to 50 ; of second 

 sternals, 36 to 44 ; of setae near the middle of the first posternal 

 row, 32 to 36; of posterior setae, 36 to 38. 



Material: Cotype, USNM 1256. All other specimens in the 

 Duke University collections. Specimens from hosts and unat- 

 tached : 



Fetomyscus g. gos^ypinus 

 Georgia 



Okefenokee Swamp : Dec. 2, 1934, 

 1 (cotype). 

 Clethrionomys gapperi palvdicol.a 

 Pennsylvania 



Venango County: May 1, 1947, 1. 

 Napeozapns insignis 

 Pennsylvania 



Venango County: May 4, 1947, 2. 

 Peroniysctis lencopiis novehGracensis 



Beaver County: May 20, 1947, 1. 

 Clethrionomys sp. 

 Pennsylvania 



Somerset County: Sept. 3, 1947, 1. 

 Bradford County: Nov. 10, 1949, 

 2; Nov. 11, 1949, 1; Nov. 13, 

 1949, 1. 



Seasonal distribution : E. setosa has been collected in fall, 

 winter, and spring. 



Geographic distribution: E. setosa has been collected in 

 localities from the Okefenokee Swamp in Georgia, through North 

 Carolina, to northern Pennsylvania (fig. 8,a). 



Diagnosis : E. setosa can be distinguished from other members 

 of the "blarinae" group by the following combination of char- 

 acters : No leaf like setae on the posterior of the body, scutum and 

 distal leg segments without apparent punctae, head of sensilla 

 ovoid. 



Ecology: E. setosa usually was taken in small numbers from 

 P. leucopus in association with E. peromysci. The one collection 



Peromyscus leucopus 

 North Carolina 



Orange County: Dec. 7, 1947, 2; 

 Dec. 28, 1947, 2; Jan. 1, 1948, 

 1; Jan. 9, 1949, 1; Jan. 23, 

 1949, 3; Jan. 30, 1949, 1; May 

 1, 1949, 1. 

 Durham County: Feb. 8, 1948, 1; 

 Dec. 5, 1948, 1. 

 SyJvUagus floridamis mallurus 

 North Carolina 



Orange County: Dec. 27, 1949, 4. 

 Under old stump 

 North Carolina 



Orange County: Jan. 22, 1950, 1. 



