﻿AST. 
  13 
  CRYPTOSTEMMATID 
  BUGS 
  — 
  McATEE 
  AM) 
  MAL.LOCH 
  25 
  

  

  sericeous. 
  Pronotum 
  shallow 
  lv 
  emarginate 
  in 
  front 
  of 
  scutellum, 
  

   the 
  latter 
  slightly 
  notched 
  apically. 
  Metapleurum 
  much 
  as 
  in 
  pre- 
  

   ceding 
  two 
  species 
  from 
  which 
  this 
  form, 
  however, 
  differs 
  strik- 
  

   ingly 
  in 
  the 
  armature 
  of 
  the 
  fifth 
  sternite 
  (fig. 
  82'). 
  Length, 
  1.25 
  

   mm. 
  

  

  Holotype. 
  — 
  Gatun, 
  Canal 
  Zone, 
  April 
  7, 
  1911, 
  E. 
  A. 
  Schwarz. 
  

   Cat. 
  No.' 
  27602. 
  U. 
  S. 
  N. 
  M. 
  

  

  Genus 
  CORIXIDEA 
  Reuter 
  

  

  Corixidea 
  Reuter, 
  O. 
  M., 
  Monograph, 
  1891, 
  pp. 
  17-18, 
  fig. 
  14 
  [monobasic, 
  

   genotype, 
  ScMzoptera 
  lunigera 
  Reuter, 
  Brazil]. 
  

  

  This 
  genus 
  (originally 
  established 
  by 
  Reuter 
  as 
  a 
  subgenus) 
  

   differs 
  from 
  ScMzoptera 
  in 
  the 
  venation 
  of 
  fore 
  wing 
  as 
  described 
  in 
  

   the 
  key, 
  and 
  illustrated 
  in 
  figure 
  53, 
  and 
  the 
  costa 
  is 
  merely 
  rounded 
  

   elevated, 
  not 
  explanate. 
  The 
  inner 
  posterior 
  angle 
  of 
  metapleurum 
  

   is 
  produced 
  as 
  a 
  rounded 
  lobe, 
  not 
  as 
  a 
  sharp 
  spike, 
  and 
  the 
  suture 
  

   between 
  propleurum 
  and 
  pronotum 
  runs 
  nearly 
  straight 
  back 
  behind 
  

   eye 
  (fig. 
  19). 
  Scutellum 
  with 
  the 
  disk 
  somewhat 
  depressed 
  and 
  the 
  

   margins 
  slightly 
  elevated, 
  the 
  apex 
  narrowed. 
  There 
  is 
  no 
  impressed 
  

   transverse 
  line 
  near 
  anterior 
  margin 
  of 
  pronotum 
  in 
  any 
  of 
  the 
  

   species 
  we 
  have 
  seen. 
  The 
  ocelli 
  are 
  minute. 
  

  

  KEY 
  TO 
  THE 
  SPECIES 
  

  

  1. 
  Veins 
  of 
  the 
  clavus 
  greatly 
  thickened, 
  appearing 
  as 
  rounded 
  ridges 
  between 
  

  

  which 
  there 
  is 
  a 
  deep 
  depression 
  about 
  equal 
  in 
  width 
  to 
  either 
  ridge; 
  

  

  these 
  thickened 
  veins 
  with 
  conspicuously 
  long 
  hairs 
  crassa, 
  new 
  species. 
  

  

  Veins 
  of 
  the 
  clavus 
  neither 
  thickened 
  nor 
  long 
  haired 
  2. 
  

  

  2. 
  Distance 
  between 
  eyes 
  across 
  back 
  of 
  head 
  about 
  twice 
  the 
  width 
  of 
  one 
  of 
  

  

  them 
  ; 
  no 
  conspicuous 
  pale 
  marking 
  on 
  fore 
  wings 
  major, 
  new 
  species. 
  

  

  Distance 
  between 
  eyes 
  across 
  back 
  of 
  head 
  more 
  than 
  twice 
  the 
  width 
  of 
  one 
  

   of 
  them 
  ; 
  a 
  conspicuous 
  thickly 
  crescent-shaped 
  pale 
  marking 
  on 
  fore 
  

   wings, 
  the 
  horns 
  of 
  the 
  crescent 
  near 
  humeral 
  angles 
  lunigera 
  Reuter. 
  

  

  CORIXIDEA 
  CRASSA, 
  new 
  species 
  

  

  Male. 
  — 
  Pronotum 
  fuscous, 
  head 
  and 
  posterior 
  half 
  of 
  fore 
  wings 
  

   yellowish 
  brown; 
  fore 
  wing 
  with 
  a 
  whitish 
  mark 
  covering 
  disk 
  of 
  

   clavus 
  and 
  the 
  area 
  between 
  radial 
  vein 
  and 
  clavus 
  from 
  base 
  to 
  

   apex 
  of 
  latter; 
  antennae 
  and 
  legs 
  yellowish. 
  Frons 
  at 
  vertex 
  fully 
  

   three 
  times 
  as 
  wide 
  as 
  one 
  eye, 
  with 
  small 
  symetrically 
  arranged 
  

   pale 
  areas; 
  basal 
  two 
  antennal 
  segments 
  subequal 
  in 
  length. 
  Pro- 
  

   notum 
  nearly 
  twice 
  as 
  wide 
  as 
  long 
  in 
  center, 
  hind 
  margin 
  regularly 
  

   convex. 
  Veins 
  of 
  clavus 
  much 
  elevated 
  and 
  thickened, 
  rounded 
  

   above, 
  the 
  space 
  between 
  them 
  hardly 
  widened 
  apically 
  and 
  not 
  

   greater 
  than 
  width 
  of 
  either 
  vein. 
  Hypopygium 
  longer 
  than 
  pre- 
  

   ceding 
  sternite. 
  Length, 
  1.25 
  mm. 
  

  

  