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  C. 
  B. 
  WILLIAMS. 
  

  

  no 
  effect 
  on 
  the 
  yield. 
  On 
  the 
  other 
  hand 
  we 
  have 
  no 
  evidence 
  that 
  the 
  flowers 
  

   killed 
  by 
  the 
  froghopper 
  are 
  the 
  ones 
  that 
  would 
  have 
  been 
  shed 
  naturally, 
  or 
  that 
  

   they 
  are 
  replaced 
  by 
  healthy 
  ones, 
  and 
  on 
  some 
  of 
  the 
  infested 
  trees 
  at 
  least 
  half 
  of 
  

   the 
  existing 
  flowers 
  were 
  destroyed. 
  

  

  The 
  adult 
  froghopper 
  (fig. 
  1) 
  is 
  about 
  one-sixth 
  of 
  an 
  inch 
  in 
  length 
  and 
  very 
  

   dark 
  brown 
  in 
  colour. 
  It 
  has 
  been 
  identified 
  for 
  me 
  as 
  probably 
  Clastoptera 
  scutellata 
  

   var. 
  funesta, 
  Sta.1, 
  but 
  I 
  am 
  doubtful 
  of 
  this 
  determination. 
  In 
  view 
  of 
  the 
  facts 
  that 
  

   (1) 
  scutellata 
  was 
  originally 
  described 
  from 
  Brazil, 
  (2) 
  my 
  experience 
  shows 
  that 
  the 
  

   Central 
  American 
  species 
  of 
  Cercopidae 
  usually 
  have 
  a 
  very 
  limited 
  range, 
  (3) 
  

   funesta 
  as 
  figured 
  by 
  Fowler 
  (Biol. 
  Cent. 
  Am. 
  Homopt., 
  ii, 
  pi. 
  xii, 
  fig. 
  14) 
  has 
  the 
  

   scutellum 
  yellow, 
  (4) 
  a 
  critical 
  study 
  of 
  the 
  genitalia 
  has 
  never 
  been 
  made 
  in 
  this 
  

   group, 
  (5) 
  more 
  harm 
  is 
  done 
  by 
  a 
  mis-identification 
  than 
  by 
  one 
  additional 
  description, 
  

   particularly 
  by 
  the 
  confusion 
  of 
  the 
  question 
  of 
  the 
  distribution 
  of 
  a 
  species 
  of 
  

   economic 
  importance, 
  I 
  am 
  describing 
  it 
  below 
  as 
  a 
  new 
  species, 
  Clastoptera 
  

   theobromae, 
  and 
  giving, 
  in 
  addition, 
  accurate 
  drawings 
  of 
  the 
  genitalia, 
  from 
  which 
  

   it 
  should 
  be 
  recognised 
  if 
  found 
  elsewhere. 
  

  

  Clastoptera 
  theobromae, 
  sp. 
  n. 
  

  

  Total 
  length 
  about 
  4 
  mm., 
  length 
  of 
  wing 
  about 
  3 
  mm., 
  width 
  between 
  eyes 
  

   1-16 
  mm., 
  width 
  across 
  pronotum 
  2 
  -3 
  mm., 
  length 
  of 
  pronotum 
  and 
  scutellum 
  

   2-4 
  mm. 
  

  

  Head 
  brown, 
  eyes 
  darker 
  ; 
  pronotum 
  and 
  scutellum 
  dark 
  shining 
  brown, 
  

   occasionally 
  lighter 
  in 
  the 
  middle 
  ; 
  wings 
  dark 
  shining 
  brown, 
  more 
  transparent 
  

   towards 
  the 
  tip 
  ; 
  abdomen 
  dark 
  brown, 
  legs 
  lighter. 
  

  

  Fig. 
  2. 
  Male 
  genitalia 
  of 
  Clastoptera 
  theobromae 
  : 
  Gen. 
  St., 
  genital 
  style 
  ; 
  Pyg. 
  St., 
  pygophoral 
  

  

  style 
  ; 
  Oed., 
  aedoeagus. 
  

  

  