﻿TWO 
  NEW 
  NAUCORID 
  BUGS 
  — 
  LA 
  RIVERS 
  5 
  

  

  Scutellum 
  glistening, 
  yellow 
  medially 
  and 
  on 
  posterior 
  angle, 
  

   yellow 
  along 
  lateral 
  edges, 
  reddish 
  brown 
  elsewhere; 
  shagreened 
  with 
  

   dense, 
  coarse, 
  white-spotted 
  punctures 
  ; 
  ratio 
  of 
  three 
  sides 
  70 
  : 
  50 
  : 
  50. 
  

  

  Hemelytra 
  mottled 
  brown 
  and 
  yellow, 
  glistening 
  ; 
  shagreened 
  as 
  is 
  

   scutellum. 
  Embolium 
  slightly 
  narrow 
  for 
  the 
  genus, 
  length-to-width 
  

   ratio 
  60: 
  18 
  (30 
  percent), 
  with 
  no 
  detectable 
  marginal 
  pilosity 
  in 
  the 
  

   specimens 
  examined. 
  Hemelytra 
  moderately 
  exposing 
  connexival 
  

   margins, 
  which 
  latter 
  have 
  sparse, 
  short 
  pilosity, 
  concentrated 
  some- 
  

   what 
  at 
  the 
  posterolateral 
  angles. 
  Hemelytra 
  just, 
  to 
  not 
  quite, 
  at- 
  

   taining 
  abdominal 
  tip. 
  

  

  Venter 
  yellow 
  to 
  brown, 
  the 
  legs 
  usually 
  not 
  markedly 
  contrasting 
  

   with 
  the 
  body 
  in 
  color. 
  Connexival 
  posterolateral 
  angles 
  acute-ang- 
  

   ulate, 
  short, 
  gradually 
  increasing 
  in 
  size 
  posteriorly, 
  not 
  in 
  the 
  least 
  

   spinose 
  ; 
  margins 
  with 
  some 
  weak 
  dentation, 
  detectable 
  only 
  with 
  con- 
  

   siderable 
  magnification, 
  on 
  all 
  segments 
  except 
  I 
  and 
  II. 
  Female 
  

   segment 
  V 
  (the 
  insect 
  being 
  oriented 
  so 
  that 
  the 
  abdominal 
  tip 
  is 
  at 
  

   the 
  top 
  of 
  the 
  field) 
  possesses 
  two 
  posterolateral 
  connexival 
  processes 
  ; 
  

   the 
  exterior 
  posterolateral 
  angle 
  and 
  an 
  interior, 
  prominent, 
  blacker, 
  

   rather 
  blunt 
  elongation 
  of 
  the 
  caudal 
  margin 
  of 
  segment 
  V 
  lying 
  

   adjacent 
  to 
  the 
  posterolateral 
  angle. 
  I 
  have 
  referred 
  to 
  this 
  in 
  other 
  

   species 
  as 
  the 
  laterocaudal 
  coimexival 
  angle. 
  Tip 
  of 
  female 
  sub- 
  

   genital 
  plate 
  strongly 
  and 
  distinctively 
  quadrisinuate, 
  the 
  lateral 
  ter- 
  

   minal 
  angles 
  long 
  and 
  rather 
  sharp, 
  but 
  not 
  extending 
  as 
  far 
  caudad 
  

   as 
  the 
  median, 
  paired 
  sinuosities 
  which 
  lie 
  close 
  together 
  as 
  a 
  doubly 
  

   rounded, 
  blunt 
  process 
  longer 
  than 
  the 
  lateral 
  spines. 
  Character 
  of 
  

   the 
  male 
  genital 
  process 
  unknown. 
  

  

  Leg 
  I 
  amber 
  ; 
  ratio 
  of 
  length 
  to 
  greatest 
  femoral 
  width 
  48 
  : 
  31 
  

   (65 
  percent) 
  : 
  combined 
  tibia-tarsus, 
  when 
  closed, 
  just 
  attaining 
  adja- 
  

   cent 
  (proximal) 
  end 
  of 
  femur. 
  

  

  Leg 
  II 
  amber; 
  ratio 
  of 
  length 
  to 
  median 
  width 
  of 
  femur 
  46:10 
  

   (22 
  percent), 
  length 
  3.4 
  mm.; 
  tibia 
  with 
  distal 
  end 
  ventrally 
  with 
  

   one-and-one-half 
  transverse 
  rows 
  of 
  reddish 
  spines, 
  the 
  terminal 
  row 
  

   complete, 
  the 
  subterminal 
  row, 
  as 
  indicated 
  above, 
  only 
  half 
  complete 
  : 
  

   ratio 
  of 
  length 
  to 
  width 
  40 
  :4.5 
  (11 
  percent), 
  length 
  3 
  mm. 
  

  

  Leg 
  III 
  amber; 
  ratio 
  of 
  length 
  to 
  median 
  femoral 
  width 
  57: 
  11 
  (19 
  

   percent) 
  , 
  length 
  4.2 
  mm. 
  ; 
  tibia 
  with 
  same 
  type 
  of 
  transverse 
  terminal 
  

   spination 
  as 
  in 
  mesotibia, 
  ratio 
  of 
  length 
  to 
  width 
  70: 
  5 
  (7 
  percent), 
  

   length 
  5.2 
  mm. 
  

  

  Tibia 
  possesses 
  the 
  typical 
  spinate 
  appearance 
  in 
  contrast 
  to 
  the 
  

   smooth 
  femora 
  ; 
  long, 
  golden, 
  silky, 
  swimming 
  hairs 
  are 
  present 
  on 
  the 
  

   metatibia 
  and 
  lacking 
  on 
  the 
  mesotibia. 
  All 
  tarsi, 
  except 
  protarsi, 
  are 
  

   3-segmented, 
  the 
  first 
  segment 
  minute, 
  the 
  last 
  two 
  long 
  and 
  slender, 
  

   terminating 
  in 
  two 
  moderately 
  curved 
  claws. 
  

  

  Type 
  and 
  paratype. 
  — 
  USNM 
  60988. 
  

  

  