﻿84 
  THE 
  HON. 
  N. 
  C. 
  ROTHSCHILD 
  — 
  ON 
  THREE 
  SPECIES 
  OF 
  XENOPSYLLA 
  

  

  I. 
  Males. 
  

  

  1. 
  Xenopsylla 
  brasiliensis, 
  Baker. 
  The 
  long 
  dorsal 
  bristle 
  situated 
  on 
  the 
  seventh 
  

   abdominal 
  segment 
  in 
  front 
  of 
  the 
  pygidium 
  (the 
  antepygidial 
  bristle) 
  is 
  placed 
  on 
  a 
  

   long 
  pedestal, 
  which 
  projects 
  beyond 
  the 
  apex 
  of 
  the 
  seventh 
  segment. 
  This 
  is 
  not 
  

   the 
  case 
  in 
  the 
  female 
  of 
  brasiliensis, 
  nor 
  is 
  it 
  so 
  in 
  either 
  sex 
  of 
  X. 
  cheopis 
  and 
  

  

  Fig. 
  1. 
  — 
  Modified 
  abdominal 
  segments 
  of 
  the 
  male 
  of 
  Xenopsylla 
  brasiliensis. 
  

   F, 
  outer 
  flap 
  of 
  clasper 
  ; 
  viii 
  st. 
  and 
  ix 
  st. 
  eighth 
  and 
  ninth 
  sternites. 
  

   2. 
  — 
  The 
  same 
  of 
  Xenopsylla 
  cheopis. 
  

   3. 
  — 
  The 
  same 
  of 
  Xenopsylla 
  astia. 
  

   4. 
  — 
  Receptaculum 
  seminis 
  of 
  X. 
  brasiliensis. 
  

   5. 
  — 
  The 
  same 
  of 
  X. 
  cheopis. 
  

   6. 
  — 
  The 
  same 
  of 
  X. 
  astia. 
  

  

  