NO. 4 FLEA GENUS PEROMYSCOPSYLLA JOHNSON AND TRAUB 2/ 



Male. — Eighth tergum with two rows of bristles mediolaterally, 

 arranged 2-3; those of last row long. Eighth sternum (fig. 45) with 

 no membranous process visible ; dorsoapically rounded ; bearing four 

 long submarginal and three or four short posteromarginal bristles ; 

 with deep sinus from lowest apical bristle to ventral margin, which 

 bears one submarginal bristle. Immovable process of clasper (fig. 47, 

 P.) about as broad as long ; posterior margin rounded with character- 

 istic bristle inserted below midpoint and in length exceeding greatest 

 width of digitoid. Movable finger or digitoid of clasper (F.) rather 

 wedge-shaped with blunt apex at insertion in P.; with sinuate ante- 

 rior margin bearing two or three thin bristles ; dorsally, gently rounded 

 to area of greatest width; with three long marginal bristles near 

 dorsocaudal angle and several smaller ones ; posterior margin below 

 these straight to level of insertion in P. Distal arm of ninth sternum 

 (fig. 44) narrow; basal half of dorsal (anterior) margin semimem- 

 branous ; apex subacute, bearing several very small bristles ; ventral 

 (posterior) margin with three or four rather long bristles near mid- 

 point ; many shorter bristles distally and proximally ; a few very small 

 bristles laterally. 



Aedeagus (fig. 108). — Essentially as in hesperomys hut with dagger 

 portion of crochets (CR.) broader; base of crochet narrower, not 

 expanded. Apex of distolateral lobe (DL.L.) with margins fairly 

 straight or concave, not ovate. 



Female. — Posterior margin of seventh sternum (figs. 46, 48) with 

 broad flat "lobe" followed by shallow ventral concavity. Spermatheca 

 (fig. 48, SP.) as in hesperomys. Anal stylet about two times as long 

 as broad; bearing one long apical bristle and one shorter ventral 

 subapical bristle. 



Holotype.—Ma\e, from "Mtis/' Paradise, Ariz., Feb. 10, 1914- 

 The range of P. draco is not known, but probably includes the 

 southwestern United States and northern Mexico. 



Records of Specimens Examined 



United States. New Mexico: Grant County (Neotoma albigula) ; Sante Fe 

 County (Peromyscus sp., P. maniculatus, P. truei, Reithrodontomys megalotis). 

 Mexico. Chihuahua: Guachochic (Peromyscus maniculatus blandits). 



PEROMYSCOPSYLLA SCOTTI L Fox, 1939 



Figures 49-52, 107 



Peromyscopsylla scotti I. Fox, Proc. Ent. Soc. Washington, vol. 41, P- 49. 

 figs. 4, 5, 1939; Fleas of the eastern United States, pp. 84, 86, pi. 22, figs. 



