﻿Ivi 
  

  

  Leguminous 
  shrub 
  near 
  to 
  Cassia 
  podocarpa, 
  Guill. 
  and 
  Perr., 
  

   which 
  is 
  eaten 
  by 
  this 
  species 
  on 
  the 
  West 
  Coast, 
  had 
  dis- 
  

   appeared, 
  and 
  the 
  later 
  broods 
  were 
  forced 
  to 
  endeavour 
  to 
  

   feed 
  to 
  maturity 
  on 
  leaf-stalks 
  and 
  green 
  bark, 
  so 
  that 
  many 
  

   appeared 
  unhealthy 
  and 
  many 
  had 
  perished. 
  

  

  " 
  In 
  each 
  attack 
  the 
  procedure 
  was 
  the 
  same. 
  The 
  fly 
  

   followed 
  for 
  about 
  six 
  inches 
  close 
  behind, 
  almost 
  touching 
  

   its 
  prospective 
  victim, 
  and 
  then 
  leapt 
  on 
  it 
  suddenly, 
  frantic- 
  

   ally 
  endeavouring 
  to 
  make 
  an 
  impression 
  with 
  its 
  proboscis 
  

   on 
  the 
  surface 
  of 
  a 
  posterior 
  segment, 
  generally 
  the 
  10th 
  or 
  

   11th. 
  The 
  first 
  two 
  feeble 
  larvae 
  which 
  were 
  seen 
  to 
  be 
  

   attacked 
  did 
  not 
  respond 
  in 
  any 
  way 
  but 
  continued 
  to 
  crawl 
  

   off. 
  The 
  assault, 
  which 
  was 
  entirely 
  without 
  result, 
  lasted 
  

   for 
  about 
  ten 
  seconds, 
  and 
  was 
  repeated 
  in 
  one 
  case 
  twice 
  

   more 
  at 
  intervals 
  of 
  about 
  half 
  a 
  minute, 
  the 
  fly 
  then 
  giving 
  

   up 
  the 
  attempt. 
  

  

  " 
  In 
  a 
  second 
  case 
  two 
  attacks 
  on 
  a 
  larva 
  took 
  place 
  ; 
  and 
  

   in 
  a 
  third 
  the 
  fly 
  seized 
  a 
  larva 
  approaching 
  maturity, 
  which 
  

   then, 
  as 
  is 
  usually 
  the 
  case, 
  made 
  a 
  sudden 
  convulsive 
  move- 
  

   ment 
  whereby 
  the 
  fly 
  was 
  forthwith 
  dislodged, 
  then 
  pro- 
  

   ceeding 
  on 
  its 
  way. 
  The 
  fly 
  made 
  one 
  further 
  attack 
  with 
  

   similar 
  result 
  and 
  then 
  desisted. 
  

  

  " 
  The 
  ants 
  already 
  studied 
  in 
  relation 
  to 
  Bengalia 
  being 
  

   of 
  the 
  average 
  size 
  it 
  was 
  with 
  some 
  surprise' 
  that 
  on 
  14th 
  

   January 
  I 
  saw 
  the 
  fly 
  [($ 
  of 
  same 
  sp.] 
  near 
  the 
  diminutive 
  

   Camponotine 
  ants, 
  396 
  [6 
  ^ 
  of 
  Prenolepis 
  {Nylanderia) 
  longi- 
  

   cornis, 
  Ltr., 
  far 
  more 
  metallic 
  than 
  usual, 
  but 
  similar 
  in 
  this 
  

   respect 
  to 
  some 
  in 
  Mr. 
  Crawley's 
  collection 
  from 
  Ocean 
  Island], 
  

   bringing 
  back 
  tiny 
  burdens 
  to 
  their 
  burrows. 
  With 
  an 
  

   abundance 
  of 
  fairer 
  prey 
  it 
  hardly 
  seemed 
  possible 
  that 
  the 
  

   fly 
  would 
  waste 
  its 
  energies 
  in 
  paltry 
  theft 
  : 
  but 
  it 
  was 
  just 
  

   as 
  guilty 
  in 
  robbing 
  these 
  little 
  creatures 
  as 
  their 
  larger 
  

   brethren, 
  the 
  procedure 
  adopted 
  being 
  precisely 
  as 
  before, 
  

   an 
  equal 
  degree 
  of 
  wariness 
  being 
  exhibited. 
  

  

  " 
  Transfer 
  to 
  Dar-es-Salaam 
  in 
  January 
  afforded 
  an 
  oppor- 
  

   tunity 
  of 
  studying 
  Bengalia 
  in 
  a 
  new 
  locality. 
  In 
  the 
  im- 
  

   mediate 
  neighbourhood 
  of 
  the 
  town 
  the 
  Camponotine 
  ants, 
  

   399 
  [several 
  ^ 
  of 
  various 
  sizes 
  of 
  Plagiolepis 
  custodiens, 
  Sm.], 
  

   and 
  401 
  [4 
  ^ 
  of 
  same 
  sp.], 
  which 
  were 
  not 
  seen 
  at 
  all 
  near 
  the 
  

  

  