﻿APPENDIX 
  II. 
  — 
  LOCUSTS 
  OF 
  WESTERN 
  UNITED 
  STATES. 
  [27} 
  

  

  2 
  $. 
  Wallula, 
  Wash., 
  September 
  1; 
  Lake 
  Point, 
  Utah, 
  August 
  14. 
  The 
  specimen* 
  

   were 
  preserved 
  in 
  alcohol. 
  

  

  Trimerotropis 
  fontana 
  Thom. 
  

  

  American 
  Fork 
  Canon, 
  7,500 
  feet, 
  August 
  5. 
  This 
  species 
  is 
  closely 
  allied 
  to 
  if 
  not 
  

   identical 
  with 
  T. 
  Juliana 
  Scudd. 
  

  

  Trimerotropis 
  similis 
  nov. 
  sp. 
  

  

  This 
  species, 
  of 
  which 
  only 
  a 
  single 
  male 
  was 
  taken, 
  at 
  Wallula, 
  Wash., 
  appears 
  to 
  

   differ 
  from 
  the 
  preceding 
  species 
  simply 
  in 
  the 
  coloration 
  of 
  the 
  wings, 
  which 
  are 
  pale 
  

   yellow 
  at 
  base, 
  hyaline 
  at 
  apex, 
  where 
  the 
  principal 
  nervures 
  are 
  brown 
  and 
  the 
  

   cross-veins 
  whitish, 
  and 
  are 
  marked 
  by 
  a 
  moderately 
  narrow 
  but 
  distinctly 
  defined 
  

   blackish 
  fuliginous 
  baud, 
  which 
  follows 
  the 
  posterior 
  border 
  to 
  the 
  inner 
  angle, 
  and 
  

   sends 
  a 
  shoot 
  along 
  the 
  discoidal 
  field 
  half 
  way 
  to 
  the 
  base 
  ; 
  beyond 
  it 
  the 
  costal 
  edge 
  

   is 
  blackish 
  nearly 
  to 
  the 
  tip 
  of 
  the 
  wing. 
  

  

  Length 
  of 
  body, 
  18.5 
  mm 
  ; 
  of 
  pronotum, 
  4.4 
  mm 
  ; 
  of 
  tegmina, 
  22™™; 
  of 
  hind 
  femora, 
  

   9 
  mm 
  . 
  « 
  

  

  Trimerotropis 
  caeruleipes 
  nov. 
  sp. 
  

  

  Very 
  dark 
  brownish 
  cinereous, 
  sometimes 
  with 
  a 
  slight 
  hoary 
  bloom. 
  Lower 
  part 
  of 
  

   head 
  varying 
  from 
  white 
  to 
  livid, 
  heavily 
  flecked 
  with 
  black 
  punctures 
  ; 
  frontal 
  costa 
  

   flat 
  or 
  nearly 
  flat 
  above 
  the 
  ocellus, 
  deeply 
  sulcate 
  below 
  ; 
  fastigium 
  flat, 
  with 
  sharp 
  

   and 
  rather 
  elevated 
  lateral 
  carinae, 
  the 
  lateral 
  foveolae 
  elongate, 
  triangular; 
  antennae 
  

   blackish 
  fuscous. 
  Front 
  lobe 
  of 
  pronotum 
  rather 
  small 
  tuberculate, 
  the 
  median 
  

   carina 
  sharp 
  and 
  rather 
  elevated 
  at 
  this 
  point, 
  but 
  on 
  the 
  granulate 
  and 
  rugulose 
  

   hinder 
  lobe 
  sharp 
  and 
  slightly 
  elevated. 
  Tegmina 
  marked 
  with 
  blackish 
  fuscous 
  necks, 
  

   which 
  cluster 
  into 
  more 
  or 
  less 
  distinct 
  bands 
  (the 
  middle 
  one 
  the 
  most 
  distinct) 
  at 
  

   the 
  end 
  of 
  successive 
  quarters, 
  the 
  outer 
  a 
  little 
  nearer 
  the 
  middle 
  one, 
  besides 
  faint 
  

   dusky 
  dots 
  which 
  follow 
  the 
  principal 
  black 
  nervures 
  on 
  the 
  apical 
  third. 
  Wings 
  

   pale 
  greenish 
  at 
  base, 
  hyaline 
  or 
  slightly 
  infumated 
  at 
  apex, 
  where 
  all 
  the 
  veins 
  are 
  

   black, 
  with 
  a 
  narrow, 
  arcuate, 
  obscure, 
  fuliginous, 
  median, 
  transverse 
  belt, 
  scarcely 
  

   extending 
  at 
  all 
  along 
  the 
  outer 
  margin, 
  shooting 
  almost 
  to 
  the 
  base 
  of 
  the 
  wing 
  below 
  

   the 
  costal 
  margin, 
  where 
  also 
  it 
  is 
  deepest 
  in 
  tint 
  ; 
  beyond 
  it 
  the 
  costal 
  margin 
  is 
  also 
  

   deeply 
  fuliginous. 
  Hind 
  femora 
  grayish 
  cinereous, 
  with 
  a 
  pair 
  of 
  obscure 
  dusky 
  or 
  

   blackish 
  transverse 
  belts 
  on 
  the 
  outer 
  face, 
  most 
  distinct 
  above, 
  and 
  a 
  blackish 
  apex; 
  

   hind 
  tibiae 
  with 
  the 
  base 
  heavily 
  mottled 
  with 
  black 
  and 
  yellowish 
  brown, 
  beyond 
  

   deep 
  blue, 
  the 
  spines 
  tipped 
  with 
  black. 
  

  

  Length 
  of 
  body, 
  £ 
  19 
  mm 
  , 
  9 
  25 
  inm 
  ; 
  of 
  antennea, 
  $ 
  11.5 
  mm 
  , 
  9 
  9.5 
  mm 
  ; 
  of 
  pronotum, 
  $ 
  

   4.5 
  mm 
  , 
  $ 
  5 
  mm 
  ; 
  of 
  tegmina, 
  $ 
  21.5 
  mm 
  , 
  9 
  26 
  mm 
  ; 
  of 
  hind 
  tibiae, 
  $ 
  10 
  mm 
  , 
  9 
  12 
  mm 
  . 
  

  

  1 
  $ 
  . 
  2 
  9, 
  Portland, 
  Oreg. 
  ; 
  Sissons, 
  Cal. 
  

  

  This 
  species, 
  which 
  resembles 
  T. 
  fontana 
  Thom. 
  in 
  the 
  character 
  of 
  the 
  band 
  on 
  the 
  

   wiugs, 
  seems 
  to 
  be 
  very 
  distinct 
  from 
  any 
  Trimerotropis 
  heretofore 
  described. 
  

  

  Trimerotropis 
  vinculata 
  Scudd. 
  PI. 
  xvii, 
  fig. 
  11. 
  

  

  Sissons, 
  Cal., 
  Aug. 
  23; 
  Wallula, 
  Wash. 
  

   Trimerotropis 
  suffusa 
  Scudd. 
  

  

  .Berkeley 
  and 
  Shasta 
  District, 
  Cal. 
  

  

  Psinidia 
  wallula 
  nov. 
  sp. 
  PI. 
  xvii, 
  fig. 
  13, 
  14. 
  

  

  Closely 
  allied 
  to 
  P. 
  sulcifrons 
  Scudd., 
  but 
  with 
  even 
  deeper 
  sulcations 
  on 
  the 
  head^ 
  

   and 
  with 
  considerably 
  shorter 
  organs 
  of 
  flight. 
  Fusco-cinerous 
  ; 
  head 
  gray 
  from 
  a 
  

   mottling 
  of 
  minute 
  brown 
  and 
  livid 
  spots, 
  darker 
  on 
  vertex, 
  paler 
  about 
  the 
  mouth; 
  a 
  

   rather 
  narrow 
  blackish 
  fuscous 
  stripe 
  runs 
  from 
  behind 
  the 
  eye 
  over 
  the 
  anterior 
  lobe 
  

   of 
  the 
  pronotum, 
  on 
  which 
  it 
  is 
  followed 
  beneath, 
  on 
  the 
  middle 
  of 
  the 
  deflected 
  lobes, 
  

   by 
  a 
  small 
  quadrate 
  black 
  spot, 
  the 
  darker 
  markings 
  rather 
  heavier 
  in 
  the 
  female 
  than 
  

   in 
  the 
  male. 
  Fastigium 
  of 
  vertex 
  deeply 
  sulcate, 
  closed 
  or 
  almost 
  closed 
  behind, 
  op- 
  

   posite 
  the 
  posterior 
  half 
  of 
  the 
  eye, 
  by 
  faint 
  walls 
  which 
  curve 
  inward 
  and 
  backward 
  ;. 
  

   sides 
  of 
  fastigium 
  sharply 
  carina 
  te, 
  connecting 
  directly 
  with 
  the 
  frontal 
  carinae, 
  and 
  in 
  

   the 
  female 
  incurved 
  next 
  the 
  antennae 
  ; 
  frontal 
  costa 
  very 
  deeply 
  sulcate, 
  in 
  the 
  male 
  

   elevated 
  nearly 
  to 
  the 
  carinae 
  at 
  the 
  extreme 
  summit 
  and 
  punctate 
  ; 
  in 
  both 
  sexes 
  the 
  

   frontal 
  carinae 
  are 
  punctate 
  in 
  black. 
  Antennae 
  of 
  male 
  as 
  long 
  as 
  the 
  hind 
  tibiae, 
  tes- 
  

   taceous, 
  infuscated 
  toward 
  the 
  tip. 
  Median 
  carina 
  of 
  pronotum 
  distinct 
  throughout, 
  but 
  

   scarcely 
  cristate 
  on 
  anterior 
  lobe 
  ; 
  disk 
  of 
  pronotum 
  more 
  or 
  less 
  rugulose, 
  with 
  a 
  ten- 
  

   dency 
  to 
  a 
  transverse 
  disposition 
  of 
  the 
  rugae, 
  especially 
  on 
  the 
  posterior 
  part 
  of 
  the 
  an- 
  

   terior 
  lobe, 
  where 
  it 
  is 
  heaviest. 
  Tegmina 
  fusco-ciuereous, 
  the 
  apical 
  third 
  partially 
  

   diaphanous, 
  the 
  costal 
  half 
  or 
  less 
  with 
  two 
  distinct, 
  broad, 
  quadrate 
  or 
  roundish, 
  black- 
  

   ish 
  bars 
  in 
  the 
  middle, 
  and 
  in 
  the 
  middle 
  of 
  the 
  basal 
  half, 
  besides 
  brownish 
  flecka 
  

   along 
  the 
  middle 
  of 
  the 
  tegmina, 
  and 
  scattered 
  flecks 
  apically 
  — 
  the 
  latter 
  having 
  a 
  

   tendency 
  to 
  follow 
  the 
  veins 
  and 
  especially 
  to 
  mark 
  their 
  tips. 
  Wings 
  pale 
  citron- 
  

   yellow 
  at 
  base, 
  pellucid, 
  with 
  dark 
  and 
  sometimes 
  thickened 
  veins 
  at 
  tip, 
  with 
  a 
  broad 
  

  

  