﻿MALAYAN 
  AND 
  OTHER 
  SPECIES 
  OF 
  CULICOIDES. 
  165 
  

  

  one 
  and 
  one-third 
  times 
  as 
  long 
  as 
  broad. 
  Thoracic 
  hairs 
  and 
  bristles 
  mostly 
  rather 
  

   dark 
  brown. 
  Scutellum 
  with 
  two 
  bristles 
  near 
  together 
  in 
  the 
  middle, 
  two 
  more 
  on 
  

   each 
  side, 
  and 
  rather 
  numerous 
  hairs 
  which 
  are 
  very 
  little 
  smaller 
  than 
  the 
  bristles. 
  

   Spermathecae 
  two 
  in 
  number, 
  moderately 
  large 
  and 
  nearly 
  globular. 
  Legs 
  normal 
  ; 
  

   first 
  hind 
  tarsal 
  segment 
  scarcely 
  twice 
  as 
  long 
  as 
  the 
  second, 
  and 
  scarcely 
  half 
  as 
  

   long 
  as 
  the 
  tibia 
  ; 
  fourth 
  tarsal 
  segments 
  cylindrical, 
  as 
  long 
  as 
  the 
  fifth. 
  Wings 
  

   hyaline 
  and 
  entirely 
  unmarked, 
  surface 
  rather 
  densely 
  and 
  uniformly 
  covered 
  with 
  

   greyish 
  hairs. 
  Radial 
  cells 
  both 
  narrow, 
  the 
  lumen 
  about 
  as 
  broad 
  as 
  one 
  of 
  the 
  veins 
  ; 
  

   second 
  cell 
  a 
  little 
  longer 
  than 
  the 
  first. 
  Cross-vein 
  rather 
  more 
  oblique 
  than 
  usual. 
  

  

  British 
  Somaliland 
  : 
  Burao, 
  xi.1914-i.1915 
  (Dr. 
  R. 
  E. 
  Drake- 
  Brockman), 
  

   " 
  collected 
  inside 
  tent, 
  biting 
  at 
  midday" 
  ; 
  six 
  $ 
  $ 
  (cotypes), 
  presented 
  to 
  the 
  British 
  

   Museum 
  by 
  the 
  London 
  School 
  of 
  Tropical 
  Medicine. 
  

  

  I 
  know 
  of 
  no 
  other 
  described 
  Culicoides 
  with 
  uniform 
  ochreous 
  thorax 
  and 
  entirely 
  

   unspotted 
  wings, 
  but 
  the 
  species 
  is 
  an 
  absolutely 
  typical 
  member 
  of 
  the 
  genus, 
  with 
  

   no 
  structural 
  peculiarities. 
  

  

  Culicoides 
  loughnani, 
  sp. 
  n. 
  (Plate 
  iii, 
  fig. 
  9). 
  

  

  Black 
  ; 
  mesonotum 
  yellowish-brown, 
  faintly 
  lined 
  (according 
  to 
  collector 
  ; 
  the 
  

   specimens 
  were 
  preserved 
  in 
  spirit 
  and 
  the 
  true 
  coloration 
  lost). 
  Wings 
  with 
  dark 
  

   ground-colour, 
  with 
  pale 
  spots 
  and 
  streaks. 
  

  

  Antennae 
  with 
  segments 
  2-9 
  nearly 
  globular, 
  8 
  and 
  9 
  about 
  one-third 
  longer 
  

   than 
  broad 
  ; 
  verticils 
  about 
  twice 
  as 
  long 
  as 
  each 
  segment 
  ; 
  sensory 
  hairs 
  three 
  in 
  

   number 
  on 
  each 
  segment, 
  about 
  two-thirds 
  as 
  long 
  as 
  the 
  verticils 
  and 
  nearly 
  twice 
  

   as 
  thick. 
  Segments 
  10-14 
  together 
  about 
  one-sixth 
  longer 
  than 
  2-9, 
  10-13 
  of 
  equal 
  

   length, 
  14 
  one-third 
  longer, 
  without 
  stylet, 
  all 
  with 
  long 
  pubescence 
  in 
  addition 
  to 
  

   the 
  basal 
  verticils, 
  but 
  without 
  sensory 
  hairs. 
  Palpi 
  with 
  the 
  second 
  joint 
  considerably 
  

   swollen, 
  expanded 
  on 
  the 
  inner 
  side 
  on 
  the 
  apical 
  half, 
  last 
  two 
  joints 
  nearly 
  cylindrical, 
  

   each 
  about 
  twice 
  as 
  long 
  as 
  broad 
  ; 
  together 
  only 
  half 
  as 
  long 
  as 
  the 
  second 
  joint. 
  

   Mesonotum 
  with 
  short 
  dark 
  pubescence. 
  Legs 
  dark 
  brown 
  ; 
  a 
  narrow 
  whitish 
  ring 
  

   near 
  the 
  tip 
  of 
  each 
  femur, 
  and 
  another 
  near 
  the 
  base 
  of 
  each 
  tibia 
  ; 
  tarsi 
  pale. 
  First 
  

   segment 
  of 
  hind 
  tarsi 
  rather 
  more 
  than 
  twice 
  as 
  long 
  as 
  the 
  second. 
  Wings 
  with 
  dark 
  

   ground-colour 
  and 
  paler 
  markings 
  (see 
  figure) 
  ; 
  three 
  black 
  marks 
  towards 
  costa, 
  

   the 
  middle 
  one 
  darkest 
  and 
  broadest, 
  covering 
  the 
  whole 
  of 
  the 
  second 
  and 
  part 
  of 
  

   the 
  first 
  radial 
  cell 
  ; 
  pale 
  streaks 
  bordering 
  the 
  median 
  and 
  cubital 
  veins. 
  Whole 
  

   surface 
  with 
  numerous 
  macrotrichia, 
  except 
  for 
  the 
  costal 
  and 
  basal 
  cells. 
  Radial 
  

   cells 
  very 
  narrow, 
  the 
  first 
  half 
  as 
  long 
  again 
  as 
  the 
  second. 
  Stem 
  of 
  median 
  cell 
  

   longer 
  than 
  the 
  cross-vein. 
  Halteres 
  whitish. 
  Length 
  1 
  -3 
  mm. 
  

  

  Jamaica: 
  Kingston 
  (Major 
  W. 
  F. 
  M. 
  Loitghnan, 
  R.A.M.C.), 
  two 
  $ 
  O. 
  

  

  The 
  collector 
  notes 
  that 
  the 
  species 
  is 
  common 
  in 
  Jamaica, 
  and 
  bites 
  all 
  through 
  

   the 
  afternoon, 
  being 
  most 
  active 
  as 
  sunset 
  approaches. 
  In 
  wing-markings 
  it 
  much 
  

   resembles 
  Williston's 
  C. 
  maculithorax, 
  described 
  from 
  St. 
  Vincent, 
  which 
  differs 
  

   in 
  having 
  the 
  wings 
  hairy 
  only 
  at 
  the 
  tips, 
  and 
  a 
  spotted 
  mesonotum. 
  C. 
  maculithorax 
  

   also 
  occurs 
  on 
  the 
  island, 
  and 
  its 
  wing 
  is 
  figured 
  (Plate 
  iii, 
  fig. 
  8) 
  for 
  comparison 
  with 
  

   that 
  of 
  C. 
  loughnani. 
  The 
  difference 
  between 
  the 
  two 
  is 
  almost 
  exactly 
  parallel 
  to 
  

   that 
  between 
  the 
  Oriental 
  C. 
  pattoni 
  and 
  C. 
  oxystoma. 
  

  

  Culicoides 
  loughnani 
  var. 
  jamaicensis, 
  n. 
  (Plate 
  iii, 
  fig. 
  10). 
  

  

  Differs 
  from 
  C. 
  loughnani 
  as 
  follows 
  : 
  — 
  Wings 
  darker, 
  with 
  a 
  much 
  larger 
  dark 
  

   area 
  on 
  the 
  basal 
  half 
  of 
  the 
  costa 
  ; 
  the 
  spot 
  over 
  the 
  radial 
  cells, 
  however, 
  is 
  not 
  so 
  

   conspicuously 
  black 
  ; 
  veins 
  not 
  pale-margined, 
  except 
  at 
  the 
  tips. 
  

  

  Jamaica: 
  Kingston 
  (Major 
  W. 
  F. 
  M. 
  Loughnan, 
  R.A.M.C), 
  two 
  $ 
  $, 
  sent 
  with 
  

   C. 
  loughnani. 
  

  

  The 
  wing-markings 
  are 
  very 
  similar 
  to 
  those 
  of 
  C. 
  phlebotomus, 
  Will., 
  from 
  

   St. 
  Vincent, 
  which 
  has 
  only 
  the 
  tips 
  of 
  the 
  wings 
  hairy. 
  

  

  