﻿408 
  P. 
  J. 
  BARRAUD. 
  

  

  Finlaya 
  assamensis 
  (Theo.). 
  

  

  Stegomyia 
  assamensis, 
  Theobald, 
  Rec. 
  Ind. 
  Mus. 
  ii, 
  pt. 
  3, 
  Oct. 
  1908, 
  p. 
  290. 
  

  

  I 
  have 
  examined 
  Theobald's 
  type 
  female 
  of 
  this 
  species, 
  and 
  although 
  it 
  is 
  now 
  

   in 
  poor 
  condition, 
  I 
  find 
  that 
  it 
  possesses 
  several 
  characters 
  which 
  show 
  that 
  it 
  is 
  

   distinct 
  from 
  Finlaya 
  gubernatoris 
  (Giles), 
  under 
  which 
  it 
  was 
  sunk 
  by 
  Edwards. 
  

   I 
  have 
  recently 
  collected 
  about 
  100 
  fresh 
  specimens 
  of 
  this 
  species 
  from 
  various 
  

   places 
  in 
  Assam 
  and 
  Eastern 
  Bengal, 
  and 
  have 
  compared 
  many 
  of 
  the 
  females 
  with 
  

   the 
  type. 
  The 
  chief 
  points 
  of 
  difference 
  were 
  mentioned 
  in 
  Theobald's 
  original 
  

   description, 
  and 
  are 
  as 
  follows 
  : 
  — 
  Tarsi 
  of 
  fore 
  legs 
  entirely 
  dark 
  (in 
  F. 
  gubernatoris 
  

   the 
  first 
  tarsal 
  segment 
  is 
  usually 
  whitish 
  on 
  the 
  ventral 
  surface, 
  and 
  in 
  the 
  female 
  

   there 
  is 
  white 
  scaling 
  over 
  the 
  joint 
  between 
  the 
  first 
  and 
  second 
  segments 
  ; 
  these 
  

   characters 
  are 
  much 
  less 
  marked 
  in 
  the 
  male). 
  Scutellum, 
  in 
  the 
  female, 
  clothed 
  

   with 
  flat 
  blackish-brown 
  scales 
  on 
  the 
  mid 
  lobe 
  and 
  sparse 
  lanceolate 
  scales 
  of 
  the 
  same 
  

   colour 
  on 
  the 
  lateral 
  ; 
  at 
  the 
  base 
  of 
  the 
  mid 
  lobe 
  there 
  may 
  appear 
  to 
  be 
  a 
  few 
  

   lighter 
  scales, 
  possibly 
  due 
  to 
  the 
  angle 
  of 
  light. 
  In 
  the 
  male 
  the 
  scutellar 
  scales 
  

   are 
  whitish 
  (as 
  in 
  several 
  other 
  species 
  in 
  this 
  group, 
  in 
  which 
  the 
  female 
  has 
  dark 
  

   scales 
  in 
  this 
  position, 
  viz., 
  F 
  . 
  khazani, 
  Edw., 
  and 
  others). 
  Abdomen 
  with 
  small 
  but 
  

   evident 
  tufts 
  of 
  outstanding 
  scales 
  on 
  the 
  venter, 
  and 
  rather 
  long 
  scales 
  in 
  the 
  mid 
  

   dorsal 
  line 
  which 
  tend 
  to 
  stand 
  away 
  from 
  the 
  terminal 
  tergites. 
  The 
  following 
  

   further 
  points 
  may 
  be 
  mentioned 
  : 
  — 
  Mesonotum, 
  in 
  the 
  male, 
  entirely 
  covered 
  with 
  

   whitish 
  scales, 
  except 
  for 
  a 
  few 
  very 
  small 
  dark 
  areas 
  between 
  the 
  level 
  of 
  the 
  wing- 
  

   roots 
  and 
  the 
  scutellum 
  ; 
  in 
  the 
  female, 
  with 
  a 
  rather 
  small 
  anterior 
  white 
  patch, 
  

   usually 
  smaller 
  than 
  in 
  F. 
  gubernatoris. 
  Both 
  species 
  show 
  variation 
  in 
  the 
  width 
  of 
  

   the 
  white 
  rings 
  on 
  the 
  mid 
  legs, 
  but 
  in 
  F. 
  assamensis 
  these 
  are 
  generally 
  narrower. 
  

   The 
  Central 
  Malaria 
  Bureau, 
  Kasauli, 
  collection 
  contains 
  specimens 
  from 
  : 
  — 
  

   Dibrugarh, 
  Nongpoh, 
  and 
  Haflong, 
  Assam 
  ; 
  Rangamati 
  and 
  Sukna, 
  Bengal 
  ; 
  all 
  

   July, 
  August 
  and 
  September 
  1922 
  (Barraud). 
  

  

  The 
  types 
  and 
  other 
  specimens 
  of 
  all 
  the 
  new 
  species 
  described 
  in 
  this 
  paper 
  

   are 
  at 
  present 
  in 
  the 
  collection 
  of 
  the 
  Central 
  Malaria 
  Bureau, 
  Central 
  Research 
  

   Institute, 
  Kasauli, 
  Punjab, 
  India, 
  but 
  it 
  is 
  intended 
  to 
  forward 
  these 
  to 
  the 
  British 
  

   Museum 
  (Natural 
  History), 
  London, 
  at 
  the 
  termination 
  of 
  my 
  enquiry. 
  Where 
  

   possible, 
  co-types 
  and 
  paratypes 
  will 
  be 
  retained 
  in 
  the 
  Kasauli 
  collection, 
  and 
  

   others 
  deposited 
  in 
  the 
  Indian 
  Museum 
  collection, 
  Calcutta. 
  

  

  