﻿161 
  

  

  ON 
  SOME 
  MALAYAN 
  AND 
  OTHER 
  SPECIES 
  OF 
  CULICOIDES, 
  

   WITH 
  A 
  NOTE 
  ON 
  THE 
  GENUS 
  LASIOHELEA. 
  

  

  By 
  F. 
  W. 
  Edwards. 
  

  

  (Plate 
  III.) 
  

  

  The 
  main 
  purpose 
  of 
  this 
  note 
  is 
  to 
  give 
  a 
  name 
  to 
  the 
  Malayan 
  Culicoides 
  that 
  

   sucks 
  blood 
  from 
  the 
  abdomen 
  of 
  Anopheline 
  mosquitos, 
  and 
  thus 
  to 
  afford 
  cover 
  

   for 
  the 
  publication 
  of 
  some 
  very 
  interesting 
  observations 
  made 
  recently 
  upon 
  this 
  

   species 
  by 
  Dr. 
  W. 
  A. 
  Lamborn. 
  At 
  the 
  same 
  time, 
  some 
  account 
  is 
  given 
  of 
  the 
  very 
  

   few 
  additional 
  specimens 
  of 
  Oriental 
  Culicoides 
  in 
  the 
  British 
  Museum— 
  most 
  of 
  which 
  

   were 
  also 
  collected 
  by 
  Dr. 
  Lamborn 
  in 
  Malaya 
  ; 
  and 
  the 
  opportunity 
  is 
  further 
  taken 
  

   to 
  describe 
  two 
  other 
  apparently 
  new 
  species 
  of 
  the 
  genus, 
  from 
  Somaliland 
  and 
  

   Jamaica, 
  respectively, 
  which 
  have 
  recently 
  been 
  received 
  at 
  the 
  Museum. 
  

  

  A 
  note 
  is 
  added 
  on 
  the 
  genus 
  Lasiohelea, 
  which 
  seems 
  to 
  be, 
  apart 
  from 
  Culicoides 
  

   and 
  Leptoconops, 
  the 
  only 
  other 
  Ceratopogonine 
  genus 
  of 
  habitual 
  blood-suckers. 
  

   Some 
  instances 
  are 
  given 
  of 
  the 
  remarkably 
  wide 
  distribution 
  of 
  some 
  members 
  

   of 
  these 
  genera, 
  showing 
  the 
  inadequacy 
  of 
  studying 
  these 
  insects 
  merely 
  from 
  

   a 
  regional 
  point 
  of 
  view, 
  as 
  is 
  more 
  or 
  less 
  inevitably 
  done 
  by 
  writers 
  at 
  the 
  

   present 
  time. 
  

  

  The 
  first 
  record 
  of 
  a 
  Ceratopogonine 
  midge 
  attacking 
  a 
  mosquito 
  was 
  that 
  of 
  

   C. 
  J. 
  Fearnside 
  (Ind. 
  Med. 
  Gaz., 
  xxxv, 
  p. 
  128, 
  1900), 
  who 
  observed 
  "Culex 
  III 
  and 
  IV" 
  

   being 
  attacked 
  at 
  Rajahmundry 
  Gaol. 
  His 
  published 
  figure 
  and 
  description 
  show 
  that 
  

   the 
  midge 
  he 
  observed 
  was 
  a 
  species 
  of 
  Culicoides, 
  perhaps 
  identical 
  with 
  that 
  described 
  

   below. 
  He 
  states 
  that 
  he 
  had 
  not 
  seen 
  the 
  parasite 
  on 
  any 
  Anopheles. 
  

  

  Subsequently 
  Captain 
  Norman 
  Lalor 
  and 
  Dr. 
  A. 
  T. 
  Stanton 
  independently 
  observed 
  

   the 
  phenomenon 
  at 
  Kyankpyu, 
  Lower 
  Burma, 
  and 
  Kuala 
  Lumpur, 
  F.M.S., 
  respectively, 
  

   and 
  published 
  notes 
  describing 
  their 
  observations 
  (Paludism, 
  No. 
  5, 
  pp. 
  42 
  and 
  64), 
  

   without 
  naming 
  or 
  describing 
  the 
  midge 
  concerned. 
  About 
  the 
  same 
  time 
  Gravely 
  

   (Rec. 
  Ind. 
  Mus., 
  iv, 
  p. 
  45, 
  1911) 
  recorded 
  a 
  similar 
  discovery 
  at 
  Calcutta. 
  

  

  So 
  far 
  as 
  I 
  have 
  been 
  able 
  to 
  ascertain, 
  the 
  midge 
  which 
  has 
  these 
  remarkable 
  

   habits 
  has 
  remained 
  till 
  now 
  unnamed,* 
  and 
  I 
  therefore 
  describe 
  it 
  below. 
  Since 
  

   all 
  the 
  material 
  which 
  has 
  been 
  received 
  at 
  the 
  Museum 
  belongs 
  to 
  one 
  species 
  it 
  

   seems 
  probable 
  that 
  the 
  records 
  of 
  Fearnside, 
  Leland 
  and 
  Gravely, 
  whose 
  material 
  

   I 
  have 
  not 
  seen, 
  also 
  refer 
  to 
  the 
  same 
  species. 
  

  

  Culicoides 
  anophelis, 
  sp. 
  n. 
  (Plate 
  hi, 
  figs. 
  4-7). 
  

  

  $. 
  — 
  Resembles 
  the 
  African 
  Culicoides 
  fulvithorax 
  (Austen)f 
  so 
  closely 
  that 
  a 
  

   complete 
  description 
  seems 
  unnecessary 
  ; 
  the 
  following 
  are 
  the 
  only 
  distinctions 
  

   I 
  have 
  been 
  able 
  to 
  discover 
  : 
  — 
  Short 
  sensory 
  bristles 
  present 
  on 
  most, 
  if 
  not 
  all, 
  of 
  

   the 
  first 
  eight 
  flagellar 
  segments, 
  though 
  difficult 
  to 
  detect. 
  The 
  trilobed 
  dark 
  area 
  

   on 
  the 
  anterior 
  portion 
  of 
  the 
  mesonotum 
  is 
  darker 
  and 
  more 
  extensive, 
  occupying 
  

   at 
  the 
  maximum 
  almost 
  the 
  anterior 
  third 
  of 
  the 
  mesonotum 
  ; 
  there 
  is 
  also 
  a 
  more 
  or 
  

   less 
  extensive 
  dark 
  brown 
  area 
  immediately 
  in 
  front 
  of 
  the 
  scutellum 
  ; 
  scutellum 
  and 
  

  

  * 
  Fearnside 
  and 
  Lalor 
  both 
  state 
  their 
  intention 
  of 
  describing 
  the 
  species 
  in 
  detail, 
  but 
  do 
  not 
  

   appear 
  to 
  have 
  done 
  so. 
  

  

  t 
  Synonyms 
  : 
  J 
  ohannseniella 
  fulvithorix, 
  Austen, 
  1912 
  ; 
  Culicoides 
  ochrothorax. 
  Carter, 
  1919 
  ; 
  

   C. 
  Julvithorax, 
  Carter, 
  Ingram 
  and 
  Macfie, 
  1920; 
  C. 
  citrinus, 
  Kieffer, 
  1921. 
  

  

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