﻿418 
  

  

  J. 
  W. 
  S. 
  MACFIE 
  AND 
  A. 
  INGRAM. 
  

  

  middle 
  and 
  on 
  its 
  inner 
  aspect 
  a 
  single 
  hair. 
  Mental 
  plate 
  (fig. 
  7, 
  b) 
  traingular, 
  highly 
  

   chitinised, 
  with 
  a 
  moderately 
  large 
  pointed 
  central 
  tooth 
  and 
  seven 
  or 
  eight 
  small 
  

   pointed 
  teeth 
  on 
  each 
  side 
  of 
  it. 
  

  

  Thorax. 
  Setae 
  on 
  the 
  anterior 
  third 
  (first 
  thoracic 
  segment) 
  small 
  ; 
  the 
  one 
  

   most 
  highly 
  developed 
  is 
  situated 
  dorso-laterally, 
  arising 
  from 
  a 
  small 
  chitinous 
  

   plate 
  and 
  single. 
  On 
  the 
  middle 
  third 
  the 
  dorso-lateral 
  seta 
  is 
  well 
  developed, 
  

   long, 
  strong, 
  single 
  ; 
  the 
  lateral 
  tuft 
  is 
  double, 
  composed 
  of 
  a 
  long 
  single 
  seta 
  

   dorsally 
  and 
  three 
  similar 
  setae 
  ventrally 
  arising 
  from 
  contiguous 
  chitinised 
  tubercles. 
  

   On 
  the 
  posterior 
  third 
  there 
  appears 
  to 
  be 
  no 
  dorso-lateral 
  seta 
  ; 
  the 
  lateral 
  tuft 
  is 
  

   similar 
  to 
  that 
  on 
  the 
  middle 
  third 
  but 
  having 
  only 
  two 
  large 
  setae 
  arising 
  from 
  

   the 
  more 
  ventral 
  tubercle. 
  

  

  Fig. 
  7. 
  Larva 
  of 
  Eretmopodites 
  chrysogasier, 
  Graham, 
  anterior 
  portion 
  of 
  body 
  : 
  

  

  a, 
  antenna 
  ; 
  b, 
  mental 
  plate. 
  

  

  Abdomen. 
  The 
  abdominal 
  setae 
  are 
  small 
  and 
  inconspicuous, 
  with 
  the 
  exception 
  

   of 
  the 
  lateral 
  elements. 
  On 
  each 
  side 
  of 
  segments 
  iii 
  to 
  v 
  are, 
  dorsally 
  a 
  stout, 
  

   relatively 
  short, 
  single 
  seta 
  arising 
  from 
  a 
  well-developed 
  conical 
  chitinised 
  tubercle, 
  

   and 
  ventrally 
  a 
  more 
  delicate 
  single 
  seta 
  arising 
  from 
  a 
  small 
  tubercle 
  ; 
  on 
  

   segments 
  i 
  and 
  ii 
  these 
  two 
  setae 
  are 
  situated 
  close 
  together 
  and 
  dorsally, 
  and 
  arise 
  

   from 
  a 
  common 
  double 
  chitinised 
  tubercle 
  ; 
  from 
  segment 
  vi 
  the 
  ventral 
  seta 
  is 
  absent 
  j 
  

  

  