﻿18 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM. 
  vol.xx. 
  

  

  Three 
  males, 
  14 
  females. 
  Moutelovez, 
  Cbi'liuahua, 
  Mexico, 
  September 
  

   20, 
  E. 
  Palmer. 
  fU.S.N.M. 
  Xo. 
  702, 
  female.] 
  

  

  2. 
  NETROSOMA 
  NIGROPLEURA, 
  new 
  species. 
  

   (Plat.- 
  II, 
  fig. 
  3). 
  

   Pezotettix 
  nigropleura 
  Bruner!, 
  M.S. 
  

  

  Body 
  luteo-testaceous, 
  heavily 
  marked 
  with 
  black. 
  Head 
  uniform 
  

   luteo-testaceous, 
  soinetiiues 
  feebly 
  iiifuscated, 
  with 
  a 
  broad 
  black 
  band 
  

   behind 
  the 
  eyes, 
  and 
  the 
  lateral 
  faces 
  of 
  the 
  frontal 
  costa 
  above 
  the 
  

   antennae 
  marked 
  with 
  black 
  5 
  antennae 
  blackish 
  fuscous. 
  Pronotum 
  

   and 
  body 
  behind 
  it 
  with 
  a 
  broad 
  equal 
  mesial 
  band 
  of 
  luteo-testaceous, 
  

   separating- 
  two 
  very 
  broad 
  black 
  bands 
  precisely 
  as 
  in 
  K. 
  fusiformls, 
  

   only 
  the 
  lower 
  third 
  of 
  the 
  lateral 
  lobes, 
  the 
  mesothoracic 
  episterna 
  and 
  

   the 
  lower 
  half 
  of 
  the 
  metathoracic 
  episterna 
  luteous. 
  Meso- 
  and 
  meta- 
  

   nota 
  with 
  scarcely 
  perceptible 
  very 
  sparse 
  punctuation; 
  posterior 
  mar- 
  

   gin 
  of 
  the 
  pronotum 
  feebly 
  emarginate, 
  including 
  the 
  whole 
  dorsal 
  

   breadth 
  ; 
  interspace 
  between 
  mesosternal 
  lobes 
  of 
  male 
  a 
  little 
  broader 
  

   than 
  the 
  lobes 
  themselves. 
  Tegmina 
  wholly 
  wanting 
  in 
  the 
  male 
  

   (female 
  unknown). 
  Hind 
  femora 
  luteo-testaceous 
  with 
  very 
  feeble 
  

   cloudy 
  signs 
  of 
  bifasciate 
  markings 
  similar 
  to 
  those 
  of 
  JV. 
  fusiformis; 
  

   hind 
  tibiae 
  dull 
  luteous 
  at 
  base 
  passing 
  on 
  apical 
  half 
  into 
  coral 
  red, 
  

   the 
  spines 
  pallid 
  with 
  black 
  tii^s. 
  Supraanal 
  plate 
  of 
  male 
  triangular 
  

   with 
  straight 
  sides, 
  the 
  extremity 
  abruptly 
  truncate 
  and 
  with 
  a 
  small 
  

   mesial 
  triangular 
  appendix, 
  the 
  basal 
  half 
  with 
  a 
  raised 
  rounded 
  longi- 
  

   tudinal 
  ridge, 
  having 
  a 
  tolerably 
  deej) 
  mesial 
  furrow 
  on 
  its 
  summit; 
  

   furcula 
  wholly 
  wanting; 
  cerci 
  moderately 
  broad, 
  lamellate, 
  tapering 
  

   gently 
  and 
  straight 
  on 
  basal 
  third 
  or 
  more, 
  beyond 
  arcuate 
  subfalcate 
  

   and 
  gently 
  incurved, 
  terminating 
  in 
  an 
  acute 
  but 
  rounded 
  angle 
  below. 
  

  

  Length 
  of 
  body, 
  male, 
  13 
  mm.; 
  antennae, 
  8.5 
  mm.; 
  hind 
  femora, 
  

   8.25 
  mm. 
  

  

  Two 
  males. 
  Lerdo, 
  Durango, 
  Mexico 
  (L. 
  Bruner). 
  

  

  Besides 
  the 
  differences 
  from 
  N. 
  fusiformis 
  mentioned 
  in 
  the 
  table, 
  the 
  

   present 
  species 
  has 
  relatively 
  longer 
  antennae. 
  

  

  3. 
  PARADICHROPLUS. 
  

   {Ttapd, 
  beside; 
  Dicliroplus, 
  a 
  genus 
  of 
  Melanopli.) 
  

  

  Pezotettix 
  (Div. 
  II) 
  Stal, 
  Bib. 
  K. 
  Sv. 
  Vet. 
  Akad.-Handl., 
  V. 
  No. 
  9 
  (1878), 
  pp. 
  4,8. 
  

   Paradichroplns 
  Bruxner, 
  Rov. 
  Syst. 
  Orth. 
  (1893), 
  p. 
  145. 
  

  

  Body 
  rather 
  elongate, 
  compressed, 
  sparsely 
  pilose. 
  Head 
  not 
  promi- 
  

   nent, 
  nor 
  broader 
  than 
  the 
  thorax, 
  the 
  vertex 
  gently 
  convex, 
  scarcely 
  

   or 
  not 
  elevated 
  above 
  the 
  level 
  of 
  the 
  j)ronotum, 
  the 
  fastiginm 
  rounded, 
  

   descending 
  moderately, 
  the 
  face 
  retreating 
  considerably, 
  especially 
  

   below; 
  interspace 
  between 
  the 
  eyes 
  not 
  very 
  narrow 
  even 
  in 
  the 
  male, 
  

   as 
  broad 
  as 
  the 
  broadest 
  part 
  of 
  the 
  frontal 
  costa, 
  which 
  is 
  at 
  the 
  ocellus, 
  

   the 
  costa 
  narrowing 
  considerably 
  above, 
  slightly 
  sulcate 
  below 
  and 
  

   failing 
  to 
  reach 
  the 
  clypeus; 
  antennae 
  short 
  and 
  stout, 
  scarcely 
  if 
  at 
  

  

  