14 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I23 



Female (fig. 9). — Seventh sternum {7S. and fig. 8) with large tri- 

 angular subacuminate upper lobe followed by deep, rather narrow 

 sinus ; lower lobe wider than width of sinus, posterior border usually 

 quite convex, at times irregular in outline. Eighth tergum {8T.) with 

 four or five small bristles above spiracle ; below spiracle with one long 

 bristle mediolaterally ; a group of long and shorter bristles below and 

 posterior to this, some of these mesal. Anal stylet {AS. and fig. 3) 

 about 2| times as long as wide, with one long apical bristle and two 

 shorter ventromarginal bristles. Spermatheca {SP. and fig. 8) with 

 evenly oval head ; tail narrow, not as long as head. 



Length.^ — Male, 2.0-2.8 mm. ; female, 2.1-2.8 mm. 



Holotype. — Female, U.S.N.M. No. 6924, from Peromyscus sp., 

 Franconia, N. H. 



Records of Specimens Examined 



Canada. Ontario (Peromyscus sp.). 



United States. Massachusetts : Franklin County (Peromyscus Icncopus) ; 

 Norfolk County (P. I. noveboracensis) . Michigan: Wayne County (Canis 

 fainiliaris). New Hampshire: Carroll County (Peromyscus maniculatus 

 gracilis). New York: Albany County (P. leucopns noveboracensis); Green 

 County, "mouse nest" (P. maniculatus, P. m. gracilis) ; Tompkins County, 

 "deer mouse" (Peromyscus sp., P. leucoptis, P. I. leucopns). Ohio: Hocking 

 County (Peromyscus s-p.). Pennsylvania: Berks County (P. kucopus) ; Mon- 

 roe County (P. leivcopus, P. maniculatus gracilis) ; Pike County (P. manicu- 

 latus) ; Wayne County (P. leucopns noveboracensis). South Carolina: George- 

 town County, "white-footed mouse." Tennessee : Great Smoky Mountains Na- 

 tional Park (P. maniculatus nubitcrrae). Vermont: Rutland County, "mouse 

 nest" (P. leucopns noveboracensis). Virginia: Augusta County (P. manicu- 

 latus nubitcrrae); Montgomery County, "mouse." West Virginia: Pendleton 

 County, nest of Neotoma. 



(Intergrades with hcsperomys adelpha) 



United States. North Dakota: Morton County (Microtus pennsylvanicus). 

 South Dakota: Custer County (Clethrionoinys gapperi brevicaudus, Pero- 

 myscus sp., P. maniculatus) ; Meade County (Clethrionomys sp.) ; Pennington 

 County (Peromyscus maniculatus). Wyoming: Crook County (Peromyscus 

 sp.). 



PEROMYSCOPSYLLA HESPEROMYS RAVALLIENSIS (Dunn, 1923), 



new status 



Figures 12, 14, 18-21, 27, 28 



Ctcnopsyllus ravalliensis Dunn, in Dunn and Parker, U. S. Publ. Health Serv., 



Publ. Health Rep. No. 38, pp. 2768-2775, 1923. 

 Ctenopsylla ravalliensis Wagner, Akad. Nauk S.S.S.R. Zool. Inst., Parazitol. 



Sbornik (Mag. Parasitol. Mus. Zool. Acad. Sci.), Leningrad, vol. i, p. 147, 



1930. 



These measurements included only when sufficient series available. 



