﻿70 
  F. 
  W. 
  EDWARDS 
  — 
  NEW 
  SPECIES 
  OF 
  CULICIDAE 
  IN 
  THE 
  BRITISH 
  MUSEUM, 
  

  

  Culex 
  trifoliatus, 
  sp. 
  nov. 
  

  

  Closely 
  resembles 
  C. 
  guiarti, 
  Blanch., 
  var. 
  grahami, 
  Theo., 
  but 
  differs 
  in 
  the 
  hypopy- 
  

   gium 
  : 
  two 
  of 
  the 
  usually 
  filamentous 
  processes 
  of 
  the 
  side-pieces 
  have 
  become 
  broad 
  

   and 
  flattened, 
  so 
  that 
  the 
  side-piece 
  appears 
  to 
  have 
  three 
  leaf-like 
  plates 
  ; 
  the 
  unci 
  

   are 
  pointed 
  and 
  the 
  first 
  division 
  of 
  the 
  harpagones 
  is 
  much 
  more 
  elaborately 
  toothed 
  

   than 
  in 
  C. 
  guiarti. 
  

  

  Uganda 
  : 
  2 
  <$ 
  (including 
  type) 
  1?, 
  Kasala, 
  i. 
  1911 
  (Capt. 
  A. 
  D. 
  Fraser, 
  R.A.M.C). 
  

  

  Culex 
  invidiosus, 
  Theo. 
  

  

  As 
  previously 
  stated, 
  I 
  can 
  detect 
  no 
  difference 
  whatever 
  between 
  the 
  hypopygia 
  

   of 
  this 
  species 
  and 
  of 
  C. 
  decern. 
  The 
  hypopygium 
  of 
  C. 
  ornatothoracis, 
  Theo., 
  is 
  also 
  

   identical, 
  and 
  as 
  this 
  form 
  only 
  differs 
  from 
  C. 
  invidiosus 
  in 
  the 
  aggregation 
  of 
  the 
  

   paler 
  scales 
  of 
  the 
  thorax 
  into 
  two 
  more 
  or 
  less 
  definite 
  spots, 
  there 
  can 
  be 
  little 
  doubt 
  

   that 
  the 
  two 
  are 
  conspecific. 
  The 
  true 
  C. 
  invidiosus 
  is 
  probably 
  a 
  purely 
  West 
  African 
  

   species. 
  The 
  hypopygium 
  (fig. 
  9) 
  is 
  illustrated 
  for 
  comparison 
  with 
  the 
  three 
  following 
  

   species. 
  

  

  Fig. 
  9. 
  — 
  Culex 
  invidiosus, 
  Theo. 
  

  

  Culex 
  laurenti, 
  Newst. 
  

  

  Through 
  the 
  kindness 
  of 
  Prof. 
  R 
  Newstead 
  and 
  Mr. 
  H. 
  F. 
  Carter 
  of 
  the 
  Liverpool 
  

   School 
  of 
  Tropical 
  Medicine, 
  I 
  have 
  been 
  able 
  to 
  examine 
  the 
  hypopygium 
  of 
  the 
  type 
  

   of 
  this 
  species 
  (see 
  fig. 
  10). 
  It 
  proves 
  to 
  be 
  distinct 
  from 
  C. 
  guiarti 
  and 
  the 
  name 
  

   must 
  therefore 
  be 
  resuscitated. 
  The 
  basal 
  projections 
  of 
  the 
  harpes 
  are 
  broader 
  than 
  

   in 
  any 
  of 
  the 
  other 
  species 
  here 
  illustrated, 
  and 
  the 
  first 
  division 
  of 
  the 
  harpagones 
  is 
  

   differently 
  toothed, 
  the 
  second 
  being 
  well 
  developed, 
  thus 
  distinguishing 
  it 
  from 
  

   C. 
  perfuscus, 
  which 
  it 
  otherwise 
  somewhat 
  resembles. 
  The 
  species 
  is 
  only 
  known 
  to 
  

  

  