﻿184 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol.96 
  

  

  process 
  bearing 
  five 
  teeth. 
  In 
  the 
  15 
  specimens 
  examined 
  the 
  apical 
  

   teeth 
  vary 
  from 
  acute 
  to 
  obtuse, 
  and 
  sometimes 
  the 
  intermediate 
  teeth 
  

   are 
  much 
  reduced 
  in 
  size. 
  The 
  longitudinal 
  veins 
  in 
  the 
  elytra 
  are 
  not 
  

   so 
  green 
  as 
  in 
  Distant's 
  illustration, 
  and 
  the 
  bluish-white 
  pruinose 
  

   spots 
  in 
  the 
  dark 
  apical 
  area 
  on 
  the 
  hind 
  wings 
  are 
  sometimes 
  absent. 
  

   In 
  addition, 
  the 
  red 
  areas 
  in 
  the 
  hind 
  wings 
  are 
  often 
  less 
  maculate 
  

   apically 
  with 
  black. 
  The 
  shape 
  of 
  the 
  internal 
  male 
  genitalia 
  appears 
  

   to 
  be 
  veiy 
  close 
  to 
  that 
  figured 
  by 
  Metcalf 
  for 
  tripartitus 
  ; 
  however, 
  

   the 
  expansion 
  of 
  the 
  inflatable 
  sacs 
  is 
  much 
  less, 
  and 
  the 
  writer 
  be- 
  

   lieves 
  that 
  these 
  two 
  species 
  are 
  distinct. 
  As 
  in 
  diadema 
  the 
  two 
  sexes 
  

   vary 
  considerably 
  in 
  length, 
  the 
  males 
  ranging 
  between 
  43 
  and 
  45 
  mm. 
  

   and 
  the 
  females 
  between 
  47 
  and 
  49 
  mm. 
  

  

  All 
  specimens 
  are 
  from 
  Panama 
  and 
  the 
  Canal 
  Zone. 
  

  

  Type 
  locality 
  : 
  Panama. 
  

  

  PHRICTUS 
  TRIPARTITUS 
  Metcalf 
  

  

  Plate 
  7, 
  Figures 
  5, 
  22 
  ; 
  Plate 
  8, 
  Figxjre 
  7 
  ; 
  Plate 
  9 
  

  

  Phrictiis 
  tripartitus 
  Metcalf, 
  Bull. 
  Mus. 
  Comp. 
  Zool., 
  vol. 
  82, 
  p. 
  365, 
  pis. 
  20, 
  21, 
  

   1938. 
  

  

  Metcalf 
  believes 
  that 
  this 
  species 
  may 
  be 
  the 
  unnamed 
  variety 
  of 
  

   diade/ma 
  described 
  by 
  Walker 
  ^ 
  and 
  figured 
  in 
  the 
  Biologia.^" 
  In 
  

   general 
  color, 
  pattern, 
  and 
  size 
  it 
  approximates 
  specimens 
  of 
  male 
  

   quinquepartitus 
  in 
  the 
  collection. 
  Although 
  the 
  aedeagus 
  of 
  the 
  male 
  

   is 
  of 
  tlie 
  same 
  general 
  form 
  in 
  both 
  species, 
  it 
  is 
  much 
  more 
  inflatable 
  

   in 
  quinquepartitiis 
  ; 
  in 
  the 
  female 
  there 
  are 
  differences 
  in 
  the 
  first 
  

   valvulae. 
  

  

  In 
  the 
  specimen 
  believed 
  to 
  be 
  tripartitus 
  the 
  teeth 
  in 
  the 
  trifurcate 
  

   apex 
  of 
  the 
  cephalic 
  process 
  are 
  very 
  obtuse 
  but 
  between 
  the 
  median 
  

   and 
  right-hand 
  tooth 
  is 
  a 
  definite 
  bump 
  that 
  may 
  be 
  construed 
  as 
  a 
  

   vCvStigial 
  tooth; 
  on 
  the 
  other 
  side 
  of 
  the 
  median 
  tooth 
  the 
  margin 
  is 
  

   crenulate. 
  This 
  specimen, 
  measuring 
  51 
  mm., 
  is 
  longer 
  than 
  any 
  speci- 
  

   men 
  of 
  quinquepaTtitus. 
  The 
  difference 
  in 
  total 
  length 
  is 
  probably 
  

   accounted 
  for 
  by 
  the 
  longer 
  cephalic 
  process 
  possessed 
  by 
  tripartitus. 
  

  

  Female 
  plesiotype 
  from 
  Virginia, 
  Guatemala, 
  November 
  1915 
  (Wm. 
  

   Schaus) 
  . 
  

  

  Type 
  locality 
  : 
  British 
  Honduras. 
  

  

  " 
  List 
  of 
  homopterous 
  insects 
  in 
  tlie 
  collection 
  of 
  the 
  British 
  Museum, 
  p. 
  264, 
  1851. 
  

   '" 
  Biologia 
  Centrali-Americana, 
  Honioptera, 
  vol. 
  1, 
  pi. 
  4, 
  fig. 
  5, 
  1883. 
  

  

  U. 
  S. 
  GOVERNMENT 
  PRINTING 
  OFFICE. 
  1945 
  

  

  