﻿NEW 
  AND 
  LITTLE-KNOWN 
  EAST 
  AFRICAN 
  CULCIDAE. 
  275 
  

  

  Genus 
  Ochlerotatus, 
  Arrib., 
  Edw. 
  

  

  0. 
  hirsutus, 
  Theo. 
  

  

  Theobald 
  (Union 
  of 
  S. 
  Afr., 
  Second 
  Kept. 
  Vet. 
  Research, 
  p. 
  328) 
  has 
  criticised 
  my 
  

   statement 
  that 
  his 
  Culex 
  hirsutwn 
  and 
  C. 
  transvaalensis 
  are 
  one 
  and 
  the 
  same 
  

   species. 
  I 
  have 
  re-examined 
  the 
  specimens, 
  and 
  find 
  no 
  reason 
  to 
  modify 
  my 
  

   previous 
  opinion, 
  except 
  in 
  one 
  particular. 
  The 
  male 
  and 
  female 
  types 
  of 
  C. 
  hirsutum 
  

   belong 
  to 
  different 
  species, 
  and 
  it 
  was 
  perhaps 
  owing 
  to 
  his 
  confusion 
  of 
  the 
  two 
  that 
  

   Theobald 
  was 
  unable 
  to 
  agree 
  with 
  my 
  findings. 
  The 
  female 
  type 
  must 
  be 
  taken 
  

   as 
  the 
  type 
  of 
  the 
  species, 
  the 
  male 
  (the 
  specimen 
  figured 
  in 
  Bull. 
  Ent. 
  Res. 
  ii, 
  p. 
  249) 
  

   being 
  really 
  0. 
  nigeriensis 
  (Theo.). 
  These 
  species, 
  as 
  previously 
  pointed 
  out, 
  can 
  

   be 
  readily 
  distinguished 
  by 
  the 
  colour 
  of 
  the 
  wing-scales, 
  but 
  for 
  their 
  better 
  defin- 
  

   ition, 
  I 
  now 
  give 
  figures 
  of 
  the 
  male 
  genital 
  claspers 
  of 
  each 
  (fig. 
  1, 
  d 
  and 
  e). 
  

  

  Unrecorded 
  localities 
  for 
  0. 
  hirsutus 
  are: 
  British 
  East 
  Africa: 
  Moyale, 
  1. 
  v. 
  

   1913 
  (Dr. 
  G. 
  R. 
  H. 
  Chell) 
  ; 
  Portguese 
  West 
  Africa 
  : 
  Bihe 
  (Dr. 
  C. 
  Wellman). 
  

  

  0. 
  cheili, 
  sp. 
  nov. 
  

  

  $. 
  Head 
  clothed 
  with 
  yellowish-ochreous 
  narrow 
  curved 
  and 
  upright 
  forked 
  scales, 
  

   only 
  a 
  few 
  flat 
  ones 
  at 
  the 
  sides. 
  Basal 
  joint 
  of 
  antennae 
  with 
  small 
  flat 
  ochreous 
  

   scales. 
  Palpi 
  and 
  proboscis 
  entirely 
  black-scaled. 
  Thorax 
  with 
  the 
  integument 
  

   dark 
  brown, 
  clothed 
  with 
  light 
  ochreous 
  brown 
  scales 
  at 
  the 
  sides, 
  darker 
  brown 
  

   ones 
  in 
  the 
  middle. 
  Scutellum 
  with 
  narrow 
  pale 
  ochreous 
  scales. 
  Abdomen 
  marked 
  

   somewhat 
  as 
  in 
  0. 
  dorsalis 
  : 
  it 
  is 
  dark 
  brown, 
  with 
  ochreous 
  basal 
  bands 
  on 
  each 
  

   segment 
  and 
  with 
  a 
  continuous 
  median 
  longitudinal 
  stripe 
  of 
  the 
  same 
  colour 
  ; 
  

   towards 
  the 
  apical 
  margins 
  of 
  the 
  fifth, 
  sixth 
  and 
  seventh 
  segments 
  this 
  stripe 
  broadens 
  

   out 
  considerably. 
  Scales 
  of 
  venter 
  ochreous. 
  Legs 
  : 
  femora 
  and 
  tibiae 
  strongly 
  

   mottled 
  with 
  dark 
  brown 
  and 
  pale 
  ochreous 
  scales, 
  the 
  femora 
  entirely 
  pale 
  on 
  their 
  

   inner 
  or 
  posterior 
  surfaces, 
  except 
  towards 
  the 
  tip. 
  Tarsi 
  of 
  all 
  the 
  legs 
  dark 
  brown, 
  

   the 
  first 
  joint 
  with 
  a 
  fairly 
  broad 
  but 
  ill-defined 
  pale 
  ring 
  at 
  the 
  base, 
  second 
  and 
  

   third 
  joints 
  with 
  very 
  narrow 
  basal 
  pale 
  rings, 
  fourth 
  joint 
  with 
  a 
  mere 
  trace 
  of 
  such 
  

   a 
  ring 
  ; 
  fifth 
  entirely 
  dark. 
  Claws 
  toothed 
  (hind 
  pairs 
  missing). 
  Wings 
  with 
  

   dark 
  brown 
  scales, 
  and 
  a 
  few 
  scattered 
  pale 
  ones 
  on 
  the 
  median 
  series 
  ; 
  scales 
  of 
  

   lateral 
  series 
  linear. 
  Upper 
  fork-cell 
  with 
  its 
  base 
  nearer 
  the 
  apex 
  of 
  the 
  wing 
  than 
  

   the 
  lower. 
  

  

  Length 
  about 
  5 
  mm. 
  

  

  British 
  East 
  Africa 
  : 
  Dido, 
  30. 
  xi. 
  1911 
  (Dr. 
  G. 
  R. 
  H. 
  Chell), 
  3$. 
  

  

  These 
  specimens 
  answer 
  in 
  many 
  respects 
  to 
  Neveu-Lemaire's 
  description 
  of 
  

   Taeniorhynchus 
  africanus, 
  but 
  there 
  are 
  several 
  discrepancies, 
  and 
  on 
  the 
  whole 
  it 
  

   seems 
  most 
  probable 
  that 
  Neveu-Lemaire's 
  species 
  was 
  only 
  0. 
  dorsalis, 
  some 
  

   disagreement 
  notwithstanding. 
  The 
  present 
  species 
  is 
  named 
  in 
  honour 
  of 
  the 
  

   collector, 
  the 
  only 
  person 
  who 
  has 
  up 
  to 
  the 
  present 
  collected 
  mosquitos 
  in 
  this 
  

   interesting 
  district 
  of 
  British 
  East 
  Africa. 
  

  

  0. 
  bevisi, 
  sp. 
  nov. 
  

  

  $. 
  Head 
  clothed 
  mainly 
  with 
  pale 
  ochreous 
  scales, 
  but 
  the 
  usual 
  spot 
  of 
  dark 
  

   brown 
  ones 
  is 
  present 
  on 
  each 
  side. 
  Scales 
  narrow 
  and 
  curved 
  in 
  the 
  middle 
  and 
  

   round 
  the 
  eyes, 
  broad 
  and 
  flat 
  at 
  the 
  sides, 
  the 
  latter 
  reaching 
  not 
  far 
  short 
  of 
  the 
  

   (C120) 
  a2 
  

  

  