28 



SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I23 



Figs. 59-63. — Peromyscopsylla catat'ina: 59, Genal area, c?; 60, seventh ster- 

 num, spermatheca, and bursa copulatrix, ?; 61, eighth sternum, c?; 62, immovable 

 process and digitoid of male clasper; 63, distal arm of ninth sternum, S. For 

 explanation of symbols see pages 67-68. 



