﻿FOUR 
  NEW 
  AFRICAN 
  MOSQUITOS. 
  399 
  

  

  Culex 
  (Culiciomyia) 
  macfiei, 
  sp. 
  n. 
  

  

  Head 
  with 
  the 
  integument 
  dark, 
  clothed 
  for 
  the 
  most 
  part 
  with 
  narrow 
  greyish- 
  

   ochreous 
  scales, 
  and 
  upright 
  dark 
  scales 
  towards 
  the 
  nape 
  ; 
  round 
  the 
  eye-margins, 
  

   but 
  not 
  quite 
  reaching 
  the 
  mid-dorsal 
  line, 
  is 
  a 
  rim 
  of 
  very 
  small, 
  flat 
  white 
  scales. 
  

   Palpi 
  of 
  $ 
  equalling 
  the 
  proboscis 
  in 
  length, 
  the 
  outer 
  half 
  of 
  the 
  long 
  segment 
  with 
  

   a 
  row 
  of 
  eight 
  outstanding 
  transparent 
  scales, 
  which 
  are 
  broad 
  near 
  their 
  base 
  and 
  

   end 
  in 
  a 
  long 
  point 
  ; 
  terminal 
  segment 
  twice 
  as 
  long 
  as 
  the 
  penultimate. 
  Palpi 
  of 
  ? 
  

   rather 
  slender, 
  exceeding 
  the 
  clypeus 
  by 
  about 
  one 
  and 
  a 
  half 
  times 
  the 
  length 
  of 
  

   this 
  part. 
  Proboscis 
  and 
  palpi 
  uniformly 
  dark 
  in 
  both 
  sexes. 
  Antennae 
  dark, 
  the 
  

   bases 
  of 
  the 
  flagellar 
  segments 
  of 
  the 
  <J 
  white 
  ; 
  verticil 
  hairs 
  of 
  intermediate 
  flagellar 
  

   segments 
  of 
  $ 
  over 
  three 
  times 
  as 
  long 
  as 
  the 
  segments, 
  pubescence 
  shorter 
  than 
  the 
  

   segments. 
  Thorax 
  : 
  integument 
  of 
  mesonotum 
  dull 
  dark 
  grey 
  ; 
  pleurae 
  rather 
  light 
  

   ochreous, 
  with 
  a 
  green 
  tinge, 
  slightly 
  dusted 
  over 
  with 
  grey. 
  Mesonotal 
  scales 
  rather 
  

   dull 
  brownish-grey, 
  somewhat 
  coarser 
  than 
  those 
  of 
  C. 
  nebulosus 
  ; 
  prothoracic 
  lobes, 
  

   pro-epimera 
  and 
  scutellum 
  scaled 
  like 
  the 
  mesonotum. 
  A 
  few 
  pale 
  flat 
  scales 
  on 
  the 
  

   sternopleura 
  ; 
  one 
  well-marked 
  lower 
  mesepimeral 
  bristle. 
  Abdomen 
  blackish-scaled 
  

   dorsally, 
  tergites 
  2-7 
  each 
  with 
  a 
  small 
  but 
  fairly 
  well-marked 
  basal 
  lateral 
  white 
  

   spot. 
  Hypopygium 
  small 
  and 
  pale, 
  weakly 
  chitinised. 
  Side-pieces 
  rounded, 
  not 
  much 
  

   longer 
  than 
  broad 
  ; 
  the 
  lobe 
  not 
  well 
  developed 
  and 
  not 
  distinctly 
  divided, 
  bearing 
  

   two 
  fairly 
  stout 
  rods 
  with 
  slightly 
  hooked 
  tips, 
  about 
  six 
  to 
  eight 
  more 
  slender 
  setae 
  

   and 
  some 
  undifferentiated 
  hairs 
  ; 
  a 
  little 
  apart 
  from 
  this 
  group 
  is 
  a 
  flattened 
  blade 
  

   representing 
  the 
  leaf, 
  which 
  is 
  rather 
  long 
  and 
  narrow 
  with 
  a 
  rounded 
  tip, 
  and 
  close 
  

   to 
  this 
  is 
  a 
  very 
  stout, 
  bluntly 
  pointed 
  spine. 
  Clasper 
  bent 
  in 
  the 
  middle 
  almost 
  at 
  

   right 
  angles, 
  with 
  a 
  single 
  recurved 
  hook 
  about 
  the 
  middle 
  of 
  the 
  apical 
  half, 
  and 
  a 
  

   single 
  fine 
  hair 
  near 
  the 
  tip. 
  Tenth 
  sternites 
  short 
  and 
  broad, 
  without 
  basal 
  projection, 
  

   spines 
  numerous, 
  all 
  pointed, 
  slender, 
  irregularly 
  arranged. 
  Lobes 
  of 
  mesosome 
  rather 
  

   gradually 
  tapering, 
  each 
  with 
  a 
  strong 
  tooth 
  at 
  the 
  base 
  on 
  the 
  inner 
  side. 
  Legs 
  

   dark, 
  the 
  femora 
  pale 
  beneath, 
  but 
  without 
  pale 
  knee-spots, 
  hind 
  femora 
  white 
  all 
  

   round 
  on 
  the 
  basal 
  half, 
  and 
  white 
  externally 
  almost 
  to 
  the 
  tip 
  ; 
  tips 
  of 
  tibiae 
  dark. 
  

   Wings 
  with 
  the 
  scales 
  all 
  dark, 
  the 
  outstanding 
  ones 
  on 
  the 
  forks 
  almost 
  linear. 
  

   Upper 
  fork-cell 
  a 
  little 
  over 
  twice 
  as 
  long 
  as 
  its 
  stem, 
  its 
  base 
  nearer 
  the 
  base 
  of 
  the 
  

   wing 
  than 
  that 
  of 
  the 
  lower. 
  Cross- 
  veins 
  separated 
  by 
  fully 
  the 
  length 
  of 
  the 
  posterior. 
  

   Halieres 
  with 
  pale 
  stem 
  and 
  dark 
  knob. 
  Wing-length, 
  <$ 
  2 
  mm. 
  ; 
  $ 
  3 
  mm. 
  

  

  Gold 
  Coast 
  : 
  Ofako, 
  reared 
  from 
  larvae 
  in 
  tree-hole, 
  24. 
  v. 
  1922 
  (Drs. 
  Ingram 
  

   and 
  Macfie) 
  ; 
  type 
  <$, 
  one 
  other 
  <J 
  and 
  3 
  $9. 
  presented 
  to 
  the 
  British 
  Museum 
  by 
  the 
  

   Imperial 
  Bureau 
  of 
  Entomology. 
  

  

  This 
  species, 
  though 
  obviously 
  closely 
  allied 
  to 
  the 
  other 
  African 
  members 
  of 
  the 
  

   group, 
  differs 
  from 
  them 
  in 
  the 
  basally 
  situated 
  pale 
  markings 
  of 
  the 
  abdominal 
  

   tergites, 
  and 
  in 
  many 
  other 
  details. 
  The 
  larvae 
  preserved 
  by 
  the 
  collectors 
  are 
  very 
  

   distinct 
  from 
  those 
  of 
  C. 
  nebulosus. 
  

  

  