﻿Bull. 
  Ent. 
  Research. 
  Vol. 
  V. 
  Part 
  I. 
  

  

  Plate 
  VIII 
  

  

  7' 
  1 
  

  

  TrcLchjeod 
  

   tube, 
  

  

  13 
  

  

  14 
  

  

  18 
  

  

  Diagram 
  to 
  show 
  direction 
  

   of 
  sections 
  13-20 
  

  

  R.E. 
  Savage 
  del 
  

  

  Bale 
  &. 
  DamelssoTi 
  , 
  L, 
  . 
  

  

  TRANSVERSE 
  SECTIONS 
  OF 
  THORACIC 
  SPIRACLE. 
  

  

  