﻿4a 
  

  

  DESCRIPTION 
  OF 
  A 
  NEW 
  FROGHOPPER 
  FROM 
  BRITISH 
  GUIANA. 
  

  

  By 
  F. 
  W. 
  Urich. 
  

   Entomologist, 
  Board 
  of 
  Agriculture, 
  Trinidad. 
  

  

  Tomaspis 
  flavilatera, 
  sp. 
  nov. 
  

  

  The 
  adult 
  (fig. 
  1) 
  is 
  of 
  a 
  light 
  brown 
  colour, 
  with 
  lateral 
  tawny 
  markings 
  forming 
  

   a 
  narrow 
  border 
  on 
  the 
  outer 
  margin 
  of 
  each 
  tegmen 
  and 
  extending 
  from 
  the 
  base 
  to 
  

   within 
  one-third 
  of 
  the 
  apex. 
  The 
  anterior 
  part 
  of 
  the 
  tawny 
  margin 
  is 
  slightly 
  

   broader 
  than 
  the 
  rest. 
  The 
  tegmina 
  are 
  translucent 
  with 
  the 
  usual 
  reticulations 
  at 
  

   the 
  apex. 
  Head, 
  pronotum 
  and 
  abdomen 
  darker 
  than 
  tegmina. 
  The 
  abdomen 
  'shows 
  

   through 
  the 
  latter 
  and 
  gives 
  the 
  anterior 
  part 
  of 
  the 
  tegmina 
  a 
  darker 
  colour. 
  Head 
  

   darker 
  than 
  pronotum 
  with 
  a 
  bronzy 
  sheen. 
  Pronotum 
  rugose. 
  The 
  profile 
  of 
  the 
  

   face 
  (fig. 
  1) 
  is 
  constant. 
  Length 
  8 
  - 
  5 
  to 
  8*75 
  mm. 
  j 
  ^ 
  

  

  Fig. 
  1. 
  Dorsal 
  and 
  lateral 
  view 
  of 
  Tomaspis 
  

   flavilatera, 
  sp. 
  nov., 
  <J, 
  X 
  6. 
  The 
  tegmina 
  

   are 
  slightly 
  distorted 
  by 
  shrinkage 
  in 
  drying. 
  

  

  Fig. 
  2, 
  Outer 
  lateral 
  view 
  of 
  left 
  

   harpe 
  (Leitz, 
  oc. 
  I. 
  obj. 
  3).j 
  

  

  The 
  male 
  genitalia 
  offer 
  the 
  best 
  and 
  most 
  constant 
  characters 
  for 
  the 
  separation 
  

   of 
  species 
  of 
  this 
  genus. 
  Fig. 
  2 
  represents 
  one 
  of 
  the 
  harpes, 
  which 
  are 
  very 
  much 
  

   contorted. 
  The 
  object 
  was 
  mounted 
  in 
  balsam 
  without 
  pressure; 
  the 
  parts 
  appear- 
  

   ing 
  dark 
  in 
  the 
  figure 
  are 
  strongly 
  chitinised. 
  

  

  British 
  Guiana 
  : 
  on 
  grass 
  and 
  occasionally 
  on 
  sugar-cane. 
  

  

  Described 
  from 
  numerous 
  specimens 
  collected 
  by 
  Messrs. 
  J. 
  J. 
  Quelch, 
  G. 
  E. 
  Bodkin, 
  ' 
  

   F. 
  A. 
  Stockdale 
  and 
  H. 
  W. 
  B. 
  Moore. 
  

  

  Type 
  in 
  the 
  British 
  Museum. 
  

  

  