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  OBSERVATIONS 
  ON 
  GLOSSINA 
  MORSITANS. 
  

  

  much 
  more 
  voracious 
  during 
  May 
  than 
  in 
  the 
  wet 
  season, 
  as 
  it 
  is 
  believed 
  that 
  the 
  

   greatest 
  number 
  of 
  larvae 
  are 
  deposited 
  in 
  May. 
  It 
  is 
  clear, 
  however, 
  that 
  a 
  seasonal 
  

   change 
  in 
  the 
  available 
  food 
  supply 
  is 
  probably 
  also 
  an 
  important 
  factor. 
  

  

  The 
  most 
  interesting 
  portion 
  of 
  Mr. 
  Eminson's 
  report 
  is 
  that 
  which 
  deals 
  with 
  the 
  

   parasites 
  of 
  Glossina 
  morsitans 
  which 
  he 
  has 
  found. 
  In 
  a 
  batch 
  of 
  258 
  collected 
  

   Glossina 
  pupae, 
  from 
  one 
  puparium 
  there 
  emerged, 
  on 
  the 
  21st 
  June 
  1914, 
  a 
  wingless 
  

   parasitic 
  wasp 
  of 
  the 
  genus 
  Mutilla. 
  It 
  was 
  observed 
  that 
  the 
  wasp 
  on 
  emerging 
  

   had 
  broken 
  open 
  the 
  puparium 
  in 
  precisely 
  the 
  same 
  way 
  as 
  would 
  the 
  fly 
  itself, 
  so 
  

   that 
  a 
  mere 
  external 
  examination 
  of 
  the 
  case 
  would 
  not 
  reveal 
  the 
  fact 
  that 
  the 
  fly 
  

   pupa 
  had 
  been 
  parasitised. 
  On 
  investigating 
  a 
  number 
  of 
  pupa-cases 
  collected 
  

   in 
  the 
  field, 
  four 
  were 
  found 
  to 
  contain 
  remains 
  of 
  parasitic 
  pupae 
  which 
  were 
  probably 
  

   referable 
  to 
  the 
  same 
  species 
  of 
  Mutilla. 
  On 
  21st 
  August, 
  84 
  of 
  the 
  tsetse 
  pupae 
  were 
  

   still 
  unhatched, 
  and 
  7 
  of 
  them 
  were 
  therefore 
  opened. 
  Two 
  of 
  these 
  contained 
  larvae 
  

   of 
  the 
  parasite, 
  and 
  in 
  the 
  other 
  five 
  the 
  fly 
  pupae 
  had 
  died 
  from 
  other 
  causes. 
  From 
  

   the 
  77 
  remaining 
  puparia 
  2 
  males 
  and 
  8 
  females 
  of 
  the 
  Mutilla 
  were 
  bred 
  out 
  between 
  

   the 
  2nd 
  and 
  6th 
  September. 
  

  

  Specimens 
  of 
  both 
  sexes 
  of 
  the 
  Mutilla 
  were 
  forwarded 
  by 
  Mr. 
  Eminson 
  to 
  the 
  

   Imperial 
  Bureau 
  of 
  Entomology 
  for 
  identification, 
  but 
  unfortunately 
  these 
  were 
  

   lost 
  in 
  the 
  post. 
  However, 
  Mr. 
  H. 
  Dollman, 
  a 
  colleague 
  of 
  Mr. 
  Eminson's, 
  forwarded 
  

   about 
  the 
  same 
  time 
  to 
  the 
  British 
  Museum 
  a 
  single 
  female 
  of 
  what 
  is 
  doubtless 
  the 
  

   same 
  insect. 
  This 
  is 
  described 
  below 
  by 
  Mr. 
  R. 
  E. 
  Turner 
  as 
  a 
  new 
  species, 
  under 
  

   the 
  name 
  of 
  Mutilla 
  glossinae. 
  

  

  In 
  addition 
  to 
  the 
  foregoing 
  parasite, 
  Mr. 
  Eminson 
  obtained, 
  on 
  21st 
  August, 
  35 
  

   specimens 
  of 
  a 
  Chalcid 
  from 
  a 
  single 
  tsetse 
  pupa. 
  The 
  species 
  has 
  not 
  been 
  for- 
  

   warded 
  for 
  identification, 
  and 
  it 
  remains 
  to 
  be 
  seen 
  whether 
  it 
  is 
  a 
  true 
  parasite 
  or 
  

   merely 
  a 
  harmful 
  hyperparasite. 
  Of 
  80 
  collected 
  pupa-cases 
  3 
  had 
  apparently 
  been 
  

   attacked 
  by 
  the 
  same 
  Chalcid. 
  

  

  