﻿136 
  F. 
  W. 
  EDWARDS. 
  

  

  with 
  only 
  two 
  incompletely 
  separated 
  divisions, 
  the 
  first 
  sickle-shaped, 
  the 
  point 
  

   directed 
  ventrally 
  and 
  touching 
  the 
  second, 
  which 
  is 
  broad 
  and 
  flattened 
  horizontally. 
  

   Harpes 
  with 
  the 
  usual 
  crown 
  of 
  spines, 
  but 
  without 
  any 
  trace 
  of 
  a 
  basal 
  thumb-like 
  

   projection 
  ; 
  their 
  sides 
  straight 
  and 
  parallel. 
  Legs 
  brown 
  ; 
  femora 
  whitish 
  beneath 
  

   almost 
  to 
  the 
  tips 
  ; 
  a 
  distinct 
  pale 
  spot 
  at 
  apex 
  of 
  hind 
  tibiae, 
  which 
  are 
  also 
  obscurely 
  

   pale 
  along 
  the 
  inner 
  side 
  ; 
  the 
  faintest 
  suggestion 
  of 
  pale 
  rings 
  at 
  the 
  tarsal 
  articu- 
  

   lations, 
  most 
  distinct 
  at 
  the 
  junction 
  of 
  the 
  first 
  and 
  second 
  hind 
  tarsal 
  joints. 
  

   Wings 
  with 
  linear-lanceolate 
  brown 
  scales 
  ; 
  bases 
  of 
  fork 
  cells 
  practically 
  level. 
  

   ?. 
  Resembles 
  the 
  male, 
  but 
  the 
  pale 
  band 
  of 
  the 
  proboscis 
  is 
  much 
  more 
  evident 
  

   on 
  the 
  underside 
  than 
  above, 
  and 
  is 
  much 
  broader 
  and 
  very 
  ill-defined 
  basally. 
  

   Middle 
  tibiae 
  in 
  one 
  specimen 
  with 
  a 
  very 
  indistinct 
  pale 
  longitudinal 
  stripe 
  in 
  front. 
  

  

  Length 
  (without 
  proboscis), 
  5 
  mm. 
  

  

  Gold 
  Coast 
  : 
  4<J 
  (including 
  type) 
  2$, 
  Kumasi, 
  1919 
  (Br. 
  W. 
  G. 
  Watt). 
  

  

  East 
  Africa: 
  4<J 
  2?,Dar-es-Salaam, 
  30.L1918 
  (A.W.J.Pomeroy). 
  

  

  The 
  most 
  obvious 
  characters 
  of 
  this 
  species 
  are 
  the 
  banded 
  proboscis 
  and 
  palpi 
  

   of 
  the 
  male, 
  together 
  with 
  the 
  practically 
  unbanded 
  legs. 
  The 
  specimens 
  agree 
  in 
  

   most 
  respects 
  with 
  Theobald's 
  description 
  of 
  C. 
  ataeniata 
  ; 
  I 
  have 
  however 
  examined 
  

   the 
  type 
  in 
  the 
  Liverpool 
  School 
  of 
  Tropical 
  Medicine, 
  and 
  consider 
  it 
  to 
  be 
  only 
  

   C. 
  univittatus, 
  with 
  which 
  indeed 
  the 
  present 
  species 
  might 
  easily 
  be 
  confused. 
  

  

  The 
  genitalia 
  are 
  most 
  distinct, 
  and 
  clearly 
  show 
  that 
  C. 
  watti 
  is 
  more 
  nearly 
  

   related 
  to 
  C. 
  duttoni 
  than 
  to 
  any 
  othe'r 
  African 
  species 
  ; 
  C. 
  duttoni 
  differs 
  chiefly 
  

   in 
  having 
  the 
  harpagones 
  undivided, 
  elongate, 
  and 
  bent 
  at 
  right 
  angles 
  in 
  the 
  middle. 
  

   In 
  adult 
  coloration 
  C. 
  duttoni 
  differs 
  obviously 
  in 
  the 
  ringed 
  tarsi 
  and 
  striped 
  tibiae. 
  

  

  Theobaldia 
  arctica, 
  sp. 
  nov. 
  

  

  <J. 
  Differs 
  from 
  T. 
  annulata, 
  Schrank, 
  as 
  follows 
  : 
  — 
  Palpi 
  rather 
  more 
  slender 
  

   and 
  darker, 
  both 
  hairs 
  and 
  scales 
  on 
  the 
  last 
  two 
  joints 
  being 
  almost 
  all 
  black. 
  

   Femora 
  without 
  any 
  trace 
  of 
  pre-apical 
  pale 
  rings 
  ; 
  hind 
  tibiae 
  without 
  pre-apical 
  

   pale 
  patch 
  on 
  the 
  outer 
  side, 
  but 
  with 
  a 
  narrow 
  longitudinal 
  pale 
  streak 
  along 
  the 
  

   inner 
  side 
  ; 
  first 
  tarsal 
  joint 
  of 
  all 
  the 
  legs 
  almost 
  entirely 
  black, 
  only 
  a 
  very 
  few 
  

   white 
  scales 
  at 
  the 
  base. 
  

  

  Genitalia 
  : 
  seventh 
  sternite 
  pointed, 
  with 
  an 
  irregular 
  row 
  of 
  ten 
  stout 
  close-set 
  

   spines 
  at 
  the 
  tip. 
  Basal 
  lobes 
  of 
  side-pieces 
  small, 
  with 
  two 
  stout 
  bent 
  setae 
  and 
  a 
  

   number 
  of 
  hairs. 
  Side-pieces 
  also 
  with 
  a 
  distinct 
  pre-apical 
  prominence 
  on 
  the 
  

   inner 
  side 
  which 
  is 
  densely 
  hairy. 
  Harpes 
  rather 
  slender, 
  more 
  swollen 
  at 
  the 
  tip, 
  

   where 
  they 
  have 
  four 
  or 
  five 
  small 
  serrations. 
  Harpagones* 
  rather 
  slender, 
  a 
  little 
  

   shorter 
  than 
  the 
  harpes, 
  their 
  tips 
  sharply 
  pointed 
  and 
  hooked 
  dorsally. 
  Unci 
  

   small, 
  pointed, 
  half 
  as 
  long 
  as 
  the 
  harpagones. 
  

  

  N. 
  Russia 
  : 
  1$, 
  Archangel, 
  25.ix.1918 
  (Cap. 
  A. 
  G. 
  Garment). 
  

  

  In 
  coloration 
  and 
  genital 
  structure 
  this 
  insect 
  agrees 
  almost 
  entirely 
  with 
  

   T. 
  alashaensis, 
  Ludlow, 
  and 
  may 
  in 
  fact 
  be 
  the 
  same. 
  Judging 
  from 
  Dyar 
  and 
  Knab's 
  

  

  * 
  These 
  are 
  the 
  structures 
  called 
  "unci" 
  by 
  Howard, 
  Dyar 
  & 
  Knab, 
  but 
  as 
  they 
  

   are 
  undoubtedly 
  homologous 
  with 
  the 
  " 
  harpagones 
  " 
  of 
  Gulex 
  I 
  use 
  this 
  term 
  for 
  them. 
  

   The 
  same 
  names 
  are 
  used 
  in 
  quite 
  different 
  senses 
  in 
  different 
  genera 
  of 
  Culicidae, 
  and 
  

   the 
  terminology 
  of 
  the 
  parts 
  of 
  the 
  male 
  genitalia 
  of 
  these 
  and 
  other 
  Diptera 
  is 
  badly 
  

   in 
  need 
  of 
  revision 
  and 
  unification. 
  

  

  