﻿NO. 
  1124. 
  REVISION 
  OF 
  THE 
  MELANOPLI—SCUDDEB. 
  17 
  

  

  ANALYTICAL 
  KEY 
  TO 
  THE 
  SPECIES 
  OV 
  NETROSOMA. 
  

  

  Teginiuii 
  present 
  in 
  both 
  sexes; 
  interspace 
  between 
  tlie 
  mesosternal 
  lobes 
  of 
  male 
  

   no 
  broader 
  than 
  the 
  lobes 
  themselves; 
  hind 
  tibiae 
  red 
  on 
  proximal 
  half 
  only. 
  

  

  1. 
  ftislfurmis 
  (p. 
  17). 
  

   Te.iiiuina 
  absent, 
  at 
  least 
  in 
  the 
  male; 
  interspace 
  between 
  the 
  mesosternal 
  lobes 
  of 
  

   male 
  broader 
  than 
  the 
  lobes 
  themselves; 
  hind 
  tibiae 
  red 
  on 
  distal 
  half 
  only. 
  

  

  2. 
  nifjropleura 
  (p. 
  18). 
  

  

  I. 
  NETROSOMA 
  FUSIFORMIS, 
  new 
  species. 
  

   (Platell, 
  fig. 
  2.) 
  

  

  Body 
  fulvo-luteous 
  witli 
  piceous 
  or 
  chocolate 
  black 
  markings. 
  Head 
  

   with 
  the 
  face 
  and 
  posterior 
  part 
  of 
  the 
  genae 
  fulvo-luteous, 
  the 
  region 
  

   of 
  and 
  about 
  the 
  frontal 
  costa 
  generally 
  infuscated, 
  the 
  front 
  half 
  of 
  

   the 
  genae 
  below 
  the 
  eyes, 
  a 
  broad 
  band 
  behind 
  the 
  eyes, 
  a 
  slender 
  medio- 
  

   dorsal 
  line 
  reaching 
  the 
  posterior 
  part 
  of 
  the 
  fastigium, 
  and 
  the 
  lateral 
  

   walls 
  of 
  the 
  frontal 
  costa 
  above 
  the 
  antennae, 
  black 
  ; 
  antennae 
  fuscous, 
  

   lighter 
  at 
  base. 
  Upper 
  surface 
  of 
  body 
  behind 
  the 
  head 
  with 
  a 
  median 
  

   stripe, 
  generally 
  of 
  uniform 
  though 
  in 
  different 
  individuals 
  of 
  varying 
  

   breadth, 
  generally 
  as 
  broad 
  as 
  the 
  interspace 
  between 
  the 
  eyes, 
  of 
  fulvo- 
  

   luteous, 
  separating 
  a 
  pair 
  of 
  piceous 
  or 
  chocolate 
  black 
  very 
  broad 
  

   stripes, 
  which 
  in 
  passing 
  backward 
  broaden 
  on 
  the 
  pronotum 
  and 
  nar- 
  

   row 
  and 
  finally 
  disappear 
  on 
  the 
  abdomen, 
  the 
  metathoracic 
  episterna 
  

   fulvous. 
  The 
  meso- 
  and 
  metanota 
  and 
  some 
  of 
  the 
  basal 
  abdominal 
  

   segments 
  are 
  sparsely 
  jiuuctate; 
  posterior 
  margin 
  of 
  the 
  jironotum 
  fee- 
  

   bly 
  emarginate, 
  including 
  in 
  the 
  emargination 
  the 
  whole 
  dorsal 
  breadth 
  ; 
  

   interspace 
  between 
  the 
  mesosternal 
  lobes 
  of 
  male 
  of 
  the 
  same 
  breadth 
  

   as 
  the 
  lobes 
  themselves. 
  Tegmina 
  blackish, 
  the 
  veins 
  occasionally 
  

   lighter, 
  a 
  little 
  longer 
  than 
  the 
  prozoiui, 
  enlarging 
  slightly 
  beyond 
  the 
  

   base 
  in 
  the 
  male. 
  Fore 
  and 
  middle 
  femora 
  fuscous; 
  hind 
  femora 
  with 
  

   the 
  outer 
  face 
  luteo 
  fufvous 
  or 
  i)allid 
  luteous, 
  crossed 
  with 
  a 
  variable 
  

   obliquity 
  by 
  a 
  pair 
  of 
  broad 
  subtransverse 
  bands 
  of 
  ferrugineo-fuscous 
  

   or 
  black, 
  often 
  contluent 
  along 
  the 
  lower 
  margin 
  and 
  with 
  a 
  basal 
  spot 
  

   of 
  the 
  same, 
  the 
  bands 
  repeated 
  on 
  the 
  inner 
  side 
  ; 
  upper 
  face 
  and 
  genic- 
  

   ulation 
  ferruginous; 
  hind 
  tibiae 
  glauco-plumbeous 
  on 
  the 
  distal, 
  coral- 
  

   line 
  on 
  the 
  proximal 
  half, 
  the 
  transition 
  gradual, 
  the 
  spines 
  iiallid 
  

   with 
  black 
  tips. 
  Supraanal 
  plate 
  of 
  male 
  long 
  triangular 
  with 
  gently 
  

   convex 
  sides, 
  the 
  tip 
  acutangulate, 
  with 
  a 
  rather 
  deep 
  median 
  sulcus 
  

   interrupted 
  in 
  the 
  middle, 
  bounded 
  at 
  base 
  by 
  high 
  and 
  coarse 
  rounded 
  

   walls, 
  at 
  tip 
  by 
  slight 
  walls; 
  furcula 
  wholly 
  wanting; 
  cerci 
  moderately 
  

   broad, 
  equal 
  from 
  the 
  base 
  or 
  with 
  the 
  slightest 
  possible 
  median 
  con- 
  

   striction, 
  lamellate, 
  as 
  long 
  as 
  the 
  supraanal 
  plate, 
  the 
  apical 
  portion 
  

   suddenly 
  bent 
  slightly 
  inward, 
  turned 
  strongly 
  downward 
  and 
  sharply 
  

   acuminate. 
  

  

  Length 
  of 
  body, 
  male, 
  14 
  ram., 
  female, 
  21.5 
  mm.; 
  antennae, 
  male, 
  7 
  

   mm., 
  female, 
  8 
  mm.; 
  tegmina, 
  male, 
  3 
  mm., 
  female^ 
  3.25 
  mm.; 
  hind 
  

   femora, 
  male, 
  8.5 
  mm., 
  female, 
  12.25 
  mm. 
  

   Troc. 
  N. 
  M. 
  vol. 
  XX 
  2 
  

  

  