﻿164 
  F. 
  W. 
  EDWARDS. 
  

  

  Culicoides 
  oxystoma, 
  Kieff. 
  (Plate 
  iii, 
  fig. 
  3). 
  

  

  Two 
  females, 
  which 
  I 
  take 
  to 
  be 
  this 
  species, 
  were 
  reared 
  in 
  company 
  with 
  

   C. 
  guttifer. 
  There 
  are 
  two 
  points 
  in 
  which, 
  if 
  the 
  above 
  determination 
  is 
  correct, 
  

   Kieffer's 
  description 
  is 
  inexact. 
  The 
  clear 
  areas 
  of 
  the 
  wing-membrane, 
  though 
  

   appearing 
  quite 
  bare 
  at 
  a 
  magnification 
  of 
  100, 
  are 
  not 
  actually 
  so, 
  very 
  pale 
  micro- 
  

   trichia 
  being 
  discernible 
  under 
  a 
  magnification 
  of 
  300. 
  Secondly, 
  the 
  extreme 
  tips 
  

   of 
  the 
  femora 
  and 
  bases 
  of 
  the 
  tibiae 
  are 
  blackish, 
  the 
  pale 
  rings 
  being 
  sub-apical 
  and 
  

   sub-basal 
  respectively, 
  not 
  actually 
  apical 
  and 
  basal. 
  Kieffer 
  does 
  not 
  describe 
  the 
  

   thoracic 
  markings 
  in 
  detail 
  ; 
  possibly 
  his 
  specimen 
  (described 
  from 
  Calcutta), 
  like 
  

   the 
  two 
  now 
  before 
  me, 
  was 
  a 
  slide 
  mount. 
  The 
  British 
  Museum 
  possesses 
  a 
  third 
  

   specimen, 
  obviously 
  of 
  the 
  same 
  species, 
  from 
  Bombay 
  (W. 
  S. 
  Hoseason), 
  so 
  that 
  it 
  

   is 
  evidently 
  widely 
  spread 
  in 
  the 
  east, 
  and 
  has 
  probably 
  been 
  described 
  under 
  other 
  

   names. 
  Patton's 
  C. 
  kiefferi 
  (recently 
  renamed 
  C. 
  pattoni 
  by 
  Kieffer) 
  is 
  evidently 
  a 
  

   very 
  similar 
  species, 
  but 
  differs 
  (according 
  to 
  Patton's 
  figure) 
  in 
  the 
  absence 
  of 
  the 
  

   small 
  white 
  spot 
  beneath 
  the 
  second 
  radial 
  cell, 
  and 
  in 
  having 
  two 
  conspicuous 
  dark 
  

   costal 
  spots, 
  the 
  area 
  between 
  the 
  second 
  and 
  third 
  pale 
  spots 
  being 
  darker 
  than 
  it 
  is 
  

   in 
  C. 
  oxystoma. 
  

  

  I 
  would 
  call 
  attention 
  also 
  to 
  the 
  very 
  close 
  resemblance 
  between 
  this 
  species 
  and 
  

   C. 
  maculithorax, 
  Williston, 
  known 
  from 
  the 
  West 
  Indies 
  and 
  Brazil. 
  Without 
  having 
  

   seen 
  males 
  of 
  either, 
  I 
  cannot 
  form 
  an 
  opinion 
  as 
  to 
  how 
  close 
  the 
  relationship 
  is, 
  but 
  

   a 
  comparison 
  of 
  Jamaican 
  examples 
  of 
  C. 
  maculithorax 
  in 
  the 
  British 
  Museum 
  with 
  

   Indian 
  and 
  Malayan 
  C. 
  oxystoma 
  reveals 
  only 
  minute 
  and 
  seemingly 
  unimportant 
  

   differences 
  ; 
  the 
  most 
  obvious 
  of 
  these 
  are 
  that 
  C. 
  maculithorax 
  has 
  rather 
  fewer 
  

   hairs 
  on 
  the 
  wing-membrane, 
  and 
  a 
  rather 
  larger 
  pale 
  spot 
  below 
  the 
  second 
  radial 
  

   cell, 
  while 
  segments 
  9-12 
  of 
  the 
  flagellum 
  are 
  a 
  little 
  more 
  swollen 
  at 
  the 
  base. 
  The 
  

   two 
  forms 
  agree 
  in 
  having 
  two 
  rather 
  large, 
  nearly 
  globular 
  spermathecae 
  with 
  rather 
  

   long 
  chitinised 
  necks. 
  

  

  The 
  life-history 
  of 
  a 
  species 
  determined 
  as 
  C. 
  oxystoma 
  has 
  recently 
  been 
  described 
  

   by 
  Patel 
  (Proc. 
  4th 
  Entom. 
  Meeting, 
  Pusa, 
  p. 
  272). 
  From 
  the 
  figure 
  of 
  the 
  adult 
  

   given 
  by 
  the 
  author 
  it 
  would 
  appear 
  that 
  the 
  species 
  is 
  almost 
  certainly 
  wrongly 
  

   determined 
  ; 
  at 
  any 
  rate, 
  Patel's 
  species 
  is 
  quite 
  distinct 
  in 
  wing-markings 
  from 
  

   Dr. 
  Lamborn's, 
  and 
  does 
  not 
  agree 
  nearly 
  so 
  well 
  with 
  Kieffer's 
  description 
  as 
  does 
  

   the 
  latter. 
  

  

  Culicoides 
  peregrinus, 
  Kieff. 
  

  

  A 
  single 
  female, 
  which 
  appears 
  to 
  be 
  this 
  species, 
  was 
  reared 
  by 
  Dr. 
  Lamborn 
  in 
  

   company 
  with 
  C. 
  oxystoma 
  and 
  C. 
  guttifer 
  ; 
  the 
  wing 
  is 
  shown 
  in 
  Plate 
  iii, 
  fig. 
  1. 
  

  

  Culicoides 
  pungens, 
  de 
  Meij. 
  (Plate 
  iii, 
  fig. 
  11). 
  

  

  I 
  am 
  indebted 
  to 
  Dr. 
  de 
  Meij 
  ere 
  for 
  the 
  loan 
  of 
  the 
  type 
  (mounted 
  in 
  balsam) 
  

   of 
  this 
  species, 
  and 
  reproduce 
  herewith 
  a 
  photograph 
  of 
  its 
  wing. 
  It 
  is 
  much 
  smaller 
  

   than 
  C. 
  anophelis, 
  and 
  although 
  the 
  rather 
  faint 
  wing-markings 
  are 
  not 
  dissimilar 
  

   in 
  the 
  two 
  species, 
  the 
  venation 
  is 
  quite 
  different, 
  the 
  second 
  radial 
  cell 
  in 
  C. 
  pungens 
  

   being 
  so 
  narrow 
  as 
  to 
  be 
  scarcely 
  distinguishable, 
  and 
  very 
  little 
  longer 
  than 
  the 
  first. 
  

   The 
  British 
  Museum 
  possesses 
  an 
  example 
  of 
  C. 
  pungens 
  from 
  Deli, 
  Sumatra, 
  received 
  

   through 
  the 
  Imperial 
  Bureau 
  of 
  Entomology 
  from 
  Dr. 
  A. 
  T. 
  Stanton 
  in 
  1915. 
  

  

  Culicoides 
  arenarius, 
  sp. 
  n. 
  (Plate 
  iii, 
  fig. 
  12). 
  

  

  $. 
  — 
  Colour 
  almost 
  uniformly 
  light 
  ochreous 
  ; 
  flagellum 
  and 
  abdomen 
  somewhat 
  

   darkened 
  ; 
  back 
  of 
  head 
  rather 
  dark 
  brown 
  ; 
  halteres 
  whitish. 
  Eyes 
  narrowly 
  but 
  

   distinctly 
  separated, 
  the 
  strip 
  between 
  them 
  narrowed 
  in 
  the 
  middle 
  to 
  less 
  than 
  the 
  

   width 
  of 
  one 
  facet. 
  Palpi 
  normal, 
  the 
  second 
  (Carter's 
  third) 
  segment 
  moderately 
  

   enlarged. 
  Antennae 
  normal, 
  practically 
  as 
  figured 
  by 
  Carter, 
  Ingram 
  and 
  Macfie 
  

   for 
  C. 
  schulzei 
  (End.) 
  ; 
  last 
  segment 
  without 
  terminal 
  style 
  ; 
  segments 
  4-10 
  about 
  

  

  