﻿art. 
  13 
  CRYPTOSTEMMATTD 
  BUGS 
  McATEE 
  AND 
  MALLOCH 
  11 
  

  

  2. 
  Metapleururn 
  produced 
  in 
  the 
  form 
  of 
  a 
  prominent 
  sharp 
  spike 
  at 
  inner 
  

  

  posterior 
  angle 
  (fig. 
  18) 
  ; 
  first 
  costal 
  cell 
  of 
  forewing 
  larger 
  than 
  second, 
  

   the 
  vein 
  bounding 
  apical 
  margin 
  of 
  latter 
  joining 
  osta 
  almost 
  at 
  a 
  right 
  

  

  angle 
  (fig. 
  49) 
  Schizoptera 
  Fieber. 
  

  

  Metapleururn 
  may 
  be 
  more 
  or 
  less 
  produced 
  but 
  never 
  with 
  a 
  pronounced 
  

   spike 
  at 
  inner 
  posterior 
  angle 
  ; 
  first 
  costal 
  cell 
  in 
  wings 
  of 
  normal 
  shape, 
  

   equal 
  to 
  or 
  smaller 
  than 
  second, 
  the 
  vein 
  bounding 
  apical 
  margin 
  of 
  

   latter 
  joining 
  costa 
  obliquely 
  (figs. 
  52-58) 
  3 
  

  

  3. 
  Forewings 
  but 
  slightly 
  or 
  not 
  at 
  all 
  convex, 
  not 
  entirely 
  heavily 
  coriaceous, 
  

  

  normally 
  formed, 
  or 
  the 
  costal 
  margin 
  very 
  conspicuously 
  explanate 
  

  

  (figs. 
  52-53, 
  55-56) 
  ; 
  claval 
  suture 
  present 
  4 
  

  

  Forewings 
  strongly 
  convex, 
  entirely 
  coriaceous, 
  with 
  sometimes 
  a 
  very 
  

   narrow 
  thinner 
  strip 
  along 
  inner 
  apical 
  margin 
  ; 
  claval 
  suture 
  obsolete 
  

   or 
  almost 
  indistinguishable; 
  habitus 
  beetle-like; 
  tibiae 
  with 
  much 
  stronger 
  

   setulae 
  than 
  in 
  contrasted 
  group 
  7 
  

  

  4. 
  Pronotum 
  without 
  a 
  transverse 
  impressed 
  line 
  near 
  anterior 
  margin 
  ; 
  first 
  

  

  and 
  second 
  costal 
  cells 
  about 
  equal 
  in 
  length, 
  separated 
  by 
  a 
  short 
  straight 
  

   vein 
  at 
  right 
  angles 
  to 
  costal 
  vein 
  (figs. 
  53, 
  55). 
  (See 
  also 
  notes 
  on 
  

  

  Oncerodes 
  Uhler, 
  p. 
  32) 
  5 
  

  

  Pronotum 
  with 
  a 
  very 
  distinct 
  transverse 
  impressed 
  line 
  near 
  anterior 
  mar- 
  

   gin 
  ; 
  first 
  and 
  second 
  costal 
  cells 
  measured 
  along 
  costa 
  very 
  unequal 
  

   in 
  length 
  (figs. 
  52, 
  56) 
  6 
  

  

  5. 
  Pronotum 
  not 
  at 
  all 
  produced 
  backward, 
  scutellum 
  exposed 
  

  

  Corixidea 
  Reuter. 
  

  

  Pronotum 
  angularly 
  produced 
  in 
  center 
  posteriorly 
  so 
  as 
  to 
  conceal 
  the 
  

  

  scutellum 
  (fig. 
  20) 
  Membracioides, 
  new 
  genus. 
  

  

  6. 
  Costal 
  margin 
  of 
  forewing 
  remarkably 
  explanate, 
  viewed 
  from 
  below 
  the 
  

  

  explanate 
  portion 
  is 
  over 
  half 
  as 
  wide 
  as 
  venter 
  of 
  abdomen, 
  habitus 
  as 
  

   in 
  figure 
  21 
  ; 
  first 
  costal 
  cell 
  of 
  wing 
  much 
  shorter 
  than 
  second, 
  separated 
  

   from 
  it 
  by 
  a 
  straight 
  vein 
  which 
  joins 
  costa 
  at 
  a 
  right 
  angle 
  (fig. 
  52) 
  ; 
  

  

  head 
  depressed 
  in 
  front 
  as 
  usual 
  in 
  the 
  family 
  Tropistotrochus 
  Reuter. 
  

  

  Costal 
  margin 
  of 
  fore 
  wing 
  more 
  or 
  less 
  reflexed 
  but 
  not 
  explanate; 
  first 
  

   and 
  second 
  costal 
  cells 
  of 
  wing 
  about 
  equal 
  in 
  area 
  but 
  the 
  separating 
  

   vein 
  is 
  oblique 
  so 
  that 
  the 
  first 
  cell 
  is 
  longer 
  along 
  hind 
  margin 
  of 
  costal 
  

   vein 
  than 
  is 
  the 
  second 
  (fig. 
  56) 
  ; 
  head 
  more 
  or 
  less 
  conically 
  produced 
  

   (figs. 
  22-25) 
  Nannocoris 
  Reuter. 
  

  

  7. 
  Eye 
  small 
  to 
  medium 
  in 
  size, 
  its 
  width 
  distinctly 
  less 
  than 
  interocular 
  

  

  space, 
  overlapping 
  not 
  more 
  than 
  a 
  third 
  of 
  lateral 
  pronotal 
  margin; 
  

  

  reflexed 
  costa 
  percurrent 
  8 
  

  

  Eye 
  large, 
  as 
  wide 
  as 
  interocular 
  space, 
  overlapping 
  two-thirds 
  of 
  lateral 
  

   pronotal 
  margin 
  ; 
  reflexed 
  portion 
  of 
  costa 
  evanescent 
  before 
  middle 
  

   of 
  forewing 
  9 
  

  

  8. 
  Pronotum 
  without 
  a 
  transverse 
  impressed 
  line 
  near 
  anterior 
  margin 
  ; 
  

  

  venation 
  obvious; 
  eye 
  about 
  one 
  half 
  as 
  wide 
  as 
  interocular 
  space 
  (fig. 
  

  

  26) 
  Hoplonannus, 
  new 
  genus. 
  

  

  Pronotum 
  with 
  a 
  transverse 
  impressed 
  line 
  near 
  anterior 
  margin, 
  forewing 
  

   entirely 
  closely 
  reticulate, 
  venation 
  almost 
  obsolete; 
  eye 
  about 
  one-third 
  

   as 
  wide 
  as 
  interocular 
  space 
  (fig. 
  27) 
  Ptenidiophyes 
  Reuter. 
  

  

  9. 
  Venation 
  traceable 
  ; 
  forewing 
  with 
  a 
  depressed 
  area 
  bordering 
  entire 
  su- 
  

  

  tural 
  margin 
  ; 
  that 
  is 
  fitted 
  for 
  overlapping, 
  (fig. 
  2S) 
  (See 
  also 
  notes 
  under 
  

  

  Omtnatides 
  Uhler, 
  p. 
  33) 
  Glyptocombus 
  Heidemann. 
  

  

  Forewing 
  closely 
  punctured 
  throughout, 
  venation 
  obsolete, 
  without 
  depressed 
  

   area 
  along 
  sutural 
  margin, 
  the 
  latter 
  nearly 
  straight 
  (fig. 
  30) 
  

  

  Hypselosoma 
  Reuter. 
  

  

  