﻿MOSQUITO 
  NOTES 
  — 
  III. 
  77 
  

  

  Femora 
  and 
  tibiae 
  of 
  <$ 
  with 
  long 
  dense 
  hair, 
  much 
  longer 
  than 
  the 
  scales. 
  Wings 
  

   with 
  mixed 
  light 
  and 
  dark 
  scales, 
  the 
  former 
  preponderating 
  on 
  the 
  costa 
  and 
  on 
  

   most 
  of 
  the 
  veins. 
  Fork-cells 
  about 
  half 
  as 
  long 
  again 
  as 
  their 
  stems, 
  their 
  bases 
  

   about 
  level. 
  Cross-veins 
  closely 
  approximated 
  (actually 
  in 
  a 
  line 
  in 
  one 
  specimen). 
  

   Wing-length, 
  6 
  • 
  5 
  mm. 
  

  

  Cotypes, 
  1 
  cJ, 
  4 
  § 
  (Fiebrig). 
  

  

  This 
  is 
  obviously 
  the 
  species 
  described 
  and 
  figured 
  by 
  Arribalzaga 
  as 
  Ps. 
  ciliata. 
  

   Since, 
  however, 
  the 
  present 
  species 
  does 
  not 
  appear 
  to 
  occur 
  in 
  North 
  America, 
  

   whence 
  Ps. 
  ciliata 
  was 
  described, 
  it 
  is 
  likely 
  that 
  Arribalzaga's 
  determination 
  was 
  

   incorrect. 
  The 
  thoracic 
  ornamentation 
  is 
  very 
  different 
  in 
  the 
  two 
  species, 
  though 
  

   the 
  hypopygial 
  structure 
  shows 
  that 
  they 
  are 
  very 
  closely 
  allied. 
  No 
  specimens 
  of 
  

   Ps. 
  pallescens 
  have 
  previously 
  been 
  received 
  at 
  the 
  British 
  Museum, 
  nor 
  apparently 
  

   have 
  any 
  specimens 
  been 
  recorded 
  apart 
  from 
  Arribalzaga's. 
  

  

  Psorophora 
  (Janthinosoma) 
  fiebrigi, 
  sp. 
  n. 
  

  

  Head 
  with 
  the 
  integument 
  mostly 
  orange, 
  becoming 
  browner 
  towards 
  the 
  front 
  ; 
  

   clypeus 
  blackish 
  ; 
  scales 
  orange 
  ; 
  bristles 
  blackish. 
  Palpi 
  purple-scaled 
  ; 
  in 
  $ 
  

   about 
  one-quarter 
  as 
  long 
  as 
  the 
  proboscis 
  ; 
  in 
  <$ 
  slender, 
  longer 
  than 
  the 
  proboscis 
  

   by 
  nearly 
  the 
  length 
  of 
  the 
  last 
  two 
  joints. 
  Proboscis 
  slender, 
  about 
  equalling 
  the 
  

   front 
  femora, 
  with 
  appressed 
  purplish 
  scales. 
  Thorax 
  with 
  the 
  integument 
  shining 
  

   black. 
  Mesonotum 
  and 
  pro-epimera 
  with 
  small 
  flat 
  bronzy 
  scales, 
  none 
  lighter 
  at 
  

   sides. 
  Scutellum 
  similarly 
  scaled. 
  Bristles 
  black. 
  Pleurae 
  (except 
  pro-epimera 
  

   and 
  the 
  bare 
  area 
  behind 
  them) 
  densely 
  clothed 
  with 
  silvery-grey 
  scales, 
  without 
  

   the 
  least 
  tinge 
  of 
  ochreous 
  ; 
  bristles 
  pale 
  ; 
  two 
  or 
  three 
  spiraculars 
  ; 
  no 
  lower 
  mes- 
  

   epimeral. 
  Abdomen 
  purple-scaled 
  dorsally, 
  except 
  for 
  the 
  first 
  segment 
  and 
  the 
  

   apical 
  corners 
  of 
  the 
  remaining 
  segment, 
  which 
  are 
  golden. 
  Venter 
  mostly 
  golden, 
  

   with 
  narrow 
  purple 
  bands 
  at 
  the 
  bases 
  of 
  the 
  segments. 
  Male 
  claspers 
  greatly 
  

   expanded 
  in 
  the 
  middle, 
  and 
  with 
  a 
  moderately 
  long, 
  slender, 
  hooked 
  tip 
  ; 
  the 
  

   expanded 
  portion 
  with 
  a 
  patch 
  of 
  short 
  recurved 
  bristles 
  on 
  the 
  outer 
  side. 
  Stem 
  

   of 
  claspettes 
  long 
  and 
  rather 
  stout, 
  suddenly 
  bent 
  almost 
  at 
  right 
  angles 
  a 
  little 
  

   beyond 
  the 
  middle, 
  tip 
  very 
  slightly 
  expanded 
  ; 
  outer 
  two 
  filaments 
  short 
  and 
  

   flattened, 
  the 
  outer 
  one 
  simple, 
  the 
  second 
  distorted. 
  Legs 
  purple-scaled 
  ; 
  hind 
  

   femora 
  golden 
  at 
  the 
  base 
  beneath 
  ; 
  fourth 
  hind 
  tarsal 
  segment 
  white 
  on 
  the 
  basal 
  

   three-fifths 
  to 
  four-fifths, 
  tip 
  dark 
  ; 
  last 
  hind 
  tarsal 
  segment 
  white 
  beneath 
  except 
  

   at 
  the 
  tip, 
  upper 
  surface 
  more 
  or 
  less 
  darkened, 
  more 
  so 
  in 
  $ 
  than 
  in 
  $. 
  Tibiae 
  and 
  

   first 
  two 
  tarsal 
  segments 
  of 
  hind 
  legs 
  with 
  the 
  scales 
  raised, 
  but 
  not 
  very 
  long. 
  Wing 
  

   scales 
  dark. 
  Fork-cells 
  with 
  their 
  bases 
  level, 
  about 
  one-third 
  longer 
  than 
  their 
  

   stems. 
  Wing-length 
  4 
  mm. 
  

  

  Cotypes, 
  5c?, 
  4$ 
  (Fiebrig). 
  

  

  Apparently 
  most 
  nearly 
  allied 
  to 
  Ps. 
  posticata, 
  but 
  smaller 
  and 
  with 
  differently 
  

   marked 
  hind 
  tarsi, 
  rather 
  shorter 
  scales 
  on 
  hind 
  legs, 
  and 
  differently 
  formed 
  claspettes. 
  

  

  Psorophora 
  (Janthinosoma) 
  purpurascens, 
  sp. 
  n. 
  

  

  $. 
  Head 
  dark, 
  with 
  dark 
  upright 
  scales 
  and 
  scattered 
  small 
  silvery-grey 
  scales. 
  

   Palpi 
  and 
  proboscis 
  with 
  appressed 
  purplish 
  scales 
  ; 
  palpi 
  about 
  one-fifth 
  as 
  long 
  

   as 
  the 
  proboscis. 
  Clypeus 
  shining 
  dark 
  brown. 
  Thorax 
  with 
  the 
  integument 
  black, 
  

   somewhat 
  shining. 
  Mesonotum 
  and 
  scutellum 
  with 
  flat 
  silvery-grey 
  scales, 
  darker, 
  

   but 
  not 
  conspicuously 
  so, 
  in 
  the 
  centre 
  of 
  the 
  mesonotum. 
  Pro-epimera 
  practically 
  

   bare. 
  Pleurae 
  with 
  dense 
  flat 
  silvery-grey 
  scales. 
  'Mesonotal 
  and 
  most 
  of 
  pleural 
  

   bristles 
  blackish. 
  Two 
  or 
  three 
  small 
  pale 
  spiracular 
  bristles 
  ; 
  mesepimeral 
  bristles 
  

   also 
  pale 
  ; 
  about 
  five 
  lower 
  mesepimerals 
  present. 
  Abdomen 
  purplish 
  dorsally, 
  

  

  