﻿182 
  

  

  PROFESSOR 
  R. 
  NEWSTEAD, 
  F.R.S. 
  

  

  17. 
  viii. 
  13 
  and 
  1 
  $, 
  17. 
  xi. 
  13 
  ; 
  Sekodumasse, 
  2 
  $?, 
  on 
  wall 
  of 
  rest-house, 
  15. 
  xi. 
  13 
  

   (all 
  Dr. 
  Ingram). 
  In 
  addition 
  to 
  the 
  foregoing, 
  there 
  were 
  9 
  $$ 
  from 
  Kintampo 
  and 
  

   5 
  5$ 
  from 
  N'Koranza, 
  which 
  have 
  not 
  been 
  prepared 
  for 
  critical 
  microscopical 
  

   examination 
  ; 
  so 
  far 
  as 
  one 
  can 
  judge 
  from 
  the 
  dry 
  material 
  they 
  all 
  belong 
  apparently 
  

   to 
  this 
  species. 
  

  

  Southern 
  Nigeria 
  : 
  Alumu, 
  18 
  — 
  24, 
  iv, 
  14 
  (Dr. 
  W. 
  A. 
  Lamborn). 
  Several 
  

   additional 
  examples 
  labelled, 
  " 
  Southern 
  Nigeria," 
  were 
  also 
  collected 
  by 
  

   Dr. 
  Lamborn. 
  

  

  Phlebotomus 
  mascittii, 
  Grassi 
  (figs. 
  3, 
  4, 
  5, 
  6). 
  

  

  Phlebotomus 
  mascittii, 
  Grassi, 
  Att. 
  Keale 
  Accad. 
  Lincei 
  (v) 
  xvii, 
  p. 
  68, 
  1908. 
  

   I 
  am 
  extremely 
  grateful 
  to 
  Dr. 
  Ashworth 
  for 
  procuring 
  for 
  me 
  a 
  male 
  example 
  of 
  

   P. 
  mascittii 
  from 
  Professor 
  Grassi. 
  This 
  has 
  enabled 
  me 
  to 
  make 
  a 
  detailed 
  exami- 
  

   nation 
  of 
  all 
  those 
  characteristics 
  which 
  are 
  of 
  taxonomic 
  importance, 
  and 
  to 
  give 
  

   figures 
  of 
  the 
  genital 
  armature 
  and 
  other 
  structures 
  which 
  are 
  so 
  much 
  needed 
  for 
  

   comparison 
  and 
  reference. 
  I 
  now 
  find 
  that 
  this 
  and 
  P. 
  pemiciosus, 
  Newst., 
  are 
  so 
  

   closely 
  allied 
  as 
  to 
  be 
  separable 
  only 
  with 
  difficulty. 
  The 
  differential 
  characters 
  in 
  

   these 
  two 
  insects 
  are 
  set 
  forth 
  in 
  the 
  following 
  table 
  : 
  — 
  

  

  P. 
  mascittii 
  $ 
  

   3 
  '5 
  mm. 
  

   With 
  5 
  large 
  and 
  1 
  small 
  

  

  spine. 
  

   2J 
  times 
  as 
  long 
  as 
  vein 
  

  

  between 
  the 
  forks. 
  

   1. 
  

  

  Grassi 
  (I.e.) 
  states 
  that 
  there 
  are 
  5 
  spines 
  present 
  on 
  the 
  distal 
  articulation 
  of 
  the 
  

   superior 
  claspers 
  (gonapofisi), 
  two 
  of 
  which 
  at 
  the 
  distal 
  extremity 
  are 
  nearly 
  as 
  long 
  

   as 
  the 
  segment 
  of 
  the 
  clasper 
  to 
  which 
  they 
  are 
  attached. 
  In 
  the 
  mounted 
  example 
  

   from 
  Professor 
  Grassi's 
  collection, 
  which 
  I 
  take 
  to 
  be 
  typical 
  of 
  the 
  species 
  and 
  from 
  

   which 
  the 
  accompanying 
  drawing 
  (fig. 
  3) 
  was 
  made, 
  there 
  was 
  clearly 
  an 
  additional 
  

  

  Length 
  

  

  Superior 
  claspers 
  

  

  Upper 
  branch 
  of 
  2nd 
  vein 
  . 
  

  

  No. 
  of 
  examples 
  examined 
  

  

  P. 
  perniciosus 
  $ 
  

   T8—2-6 
  mm. 
  

   With 
  5 
  large 
  spines 
  only. 
  

  

  1J 
  times 
  as 
  long 
  as 
  vein 
  

  

  between 
  the 
  forks. 
  

   16. 
  

  

  ^ 
  

  

  Fig. 
  3. 
  Phlebotomus 
  mascittn, 
  Grassi 
  ; 
  genital 
  armature 
  of 
  <£, 
  X 
  75. 
  

  

  spine 
  (making 
  6 
  in 
  all), 
  which 
  he 
  does 
  not 
  mention 
  in 
  his 
  diagnosis. 
  The 
  spine 
  in 
  

   question 
  arises 
  on 
  the 
  ventral 
  surface 
  a 
  little 
  posterior 
  to 
  the 
  inner 
  lateral 
  pair 
  of 
  

   spines 
  ; 
  but 
  it 
  is 
  much 
  smaller 
  and 
  finer 
  than 
  the 
  rest. 
  In 
  the 
  enlarged 
  drawing 
  

   (fig. 
  6, 
  a) 
  this 
  spine 
  is 
  shown 
  in 
  dotted 
  line, 
  as, 
  owing 
  to 
  an 
  unfortunate 
  accident, 
  

  

  