﻿4 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol.67 
  

  

  TRIBES 
  OF 
  PLOIARIINAE 
  ACCORDING 
  TO 
  STAI-. 
  

  

  A 
  1 
  . 
  Front 
  femora 
  armed 
  for 
  their 
  whole 
  length 
  beneath 
  with 
  long, 
  slender 
  

  

  spines, 
  all 
  or 
  most 
  of 
  them 
  setiform 
  ; 
  hind 
  femora 
  surpassing 
  apex 
  of 
  

  

  abdomen 
  ; 
  front 
  tibia 
  and 
  tarsus 
  together 
  usually 
  subequal 
  in 
  length 
  to 
  

  

  front 
  femur, 
  rarely 
  distinctly 
  shorter; 
  body 
  usually 
  winged. 
  

  

  B 
  \ 
  Front 
  tarsi 
  short, 
  segmented, 
  flexible 
  or 
  sub-flexible, 
  two-clawed, 
  scarcely 
  

  

  or 
  not 
  at 
  all 
  longer 
  than 
  hind 
  tarsi 
  ; 
  front 
  tibia 
  a 
  little 
  shorter 
  than 
  

  

  femur 
  ; 
  hemelytra 
  of 
  species 
  known 
  to 
  me 
  marked 
  with 
  fuscous 
  ; 
  

  

  scutellum 
  and 
  post-scutellum 
  armed 
  apically 
  with 
  spines. 
  

  

  PLOIARIARIA. 
  

   Ploiaria 
  (=Empicoris). 
  

   Malacopus. 
  

   Stenolemus. 
  

   B 
  2 
  . 
  Front 
  tarsi 
  long, 
  scarcely 
  or 
  not 
  at 
  all 
  shorter 
  than 
  tibia, 
  one 
  segmented 
  

   or 
  composed 
  of 
  three 
  connate 
  segments, 
  subcurved, 
  subcompressed, 
  as 
  

   seen 
  from 
  the 
  side 
  usually 
  distinctly 
  tapering 
  toward 
  apex, 
  provided 
  

   with 
  two 
  unequal 
  contiguous 
  or 
  subcontiguous 
  claws, 
  or 
  with 
  one 
  claw 
  ; 
  

   front 
  tibia 
  much 
  shorter 
  than 
  femur, 
  sometimes 
  only 
  about 
  half 
  as 
  

   long; 
  first 
  joint 
  of 
  antenna 
  long; 
  hemelytra 
  scarcely 
  or 
  only 
  very 
  

  

  pale 
  fuscous 
  marked. 
  

  

  LEISTARCHARIA. 
  

  

  Orthunga. 
  

   Tinna. 
  

   Cerascopus. 
  

   Luteva. 
  

   A 
  8 
  . 
  Front 
  femur 
  unarmed 
  beneath 
  toward 
  the 
  base 
  or 
  in 
  front 
  of 
  middle 
  ; 
  half 
  

   or 
  less 
  than 
  half 
  its 
  length, 
  apically, 
  armed 
  with 
  unequal 
  spines 
  ; 
  front 
  

   tibia 
  and 
  tarsus 
  together 
  shorter 
  than 
  femur 
  ; 
  body 
  much 
  elongated 
  ; 
  

   head 
  with 
  the 
  small 
  eyes 
  scarcely 
  or 
  only 
  slightly 
  wider 
  than 
  apex 
  of 
  

   thorax. 
  

   C 
  \ 
  Postocular 
  part 
  of 
  head 
  perceptibly 
  tapering 
  posteriorly, 
  quite 
  slender 
  

   behind 
  ; 
  hind 
  femur 
  distinctly, 
  sometimes 
  far, 
  surpassing 
  apex 
  of 
  abdo- 
  

   men 
  ; 
  legs 
  very 
  long. 
  

  

  EMESARIA. 
  

  

  Gardena. 
  

  

  Ghilianella. 
  

  

  Emesa. 
  

  

  Ischnobaena. 
  

  

  C 
  *. 
  Postocular 
  part 
  of 
  head 
  scarcely 
  or 
  only 
  slightly 
  narrowed 
  posteriorly, 
  

  

  abruptly 
  rotund 
  coarctate 
  at 
  base; 
  hind 
  femur 
  attaining 
  or 
  slightly 
  

  

  surpassing 
  apex 
  of 
  abdomen 
  ; 
  head 
  armed 
  between 
  the 
  antennae 
  with 
  

  

  an 
  usually 
  very 
  distinct 
  tubercle 
  or 
  more 
  often 
  with 
  a 
  spine 
  ; 
  tylus 
  

  

  usually 
  projecting 
  as 
  a 
  spine. 
  

  

  METAPTERARIA. 
  

  

  Barce. 
  

  

  Metapterus. 
  

  

  Ischiionyctes. 
  

  

  Bargylia. 
  

  

  In 
  criticism 
  of 
  the 
  foregoing 
  arrangement 
  we 
  would 
  point 
  out 
  that: 
  

   1. 
  The 
  spines 
  of 
  the 
  front 
  femur 
  of 
  numerous 
  species 
  included 
  under 
  

   Stal's 
  first 
  major 
  division 
  are 
  not 
  setiform, 
  but 
  on 
  the 
  contrary, 
  

   strongly 
  chitinized. 
  

  

  