NO. 4 FLEA GENUS PEROMYSCOPSYLLA — JOHNSON AND TRAUB 35 



Figs. 74-78. — Peromyscopsylla hamijer hamifer and P. h. vigens: 74, Head 

 and prothorax, P. h. hamifer, c?; 75, seventh sternum and spermatheca, P. h. 

 hamifer, $ ; 76, eighth sternum, P. h. vigens, d" ; 77, anal stylet, P. h. hamifer, $ ; 

 78, eighth sternum, P. h. hamifer, <?. For explanation of symbols see pages 67-68. 



