﻿222 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM. 
  vol.xx. 
  

  

  feebly 
  tectate 
  above, 
  passing 
  by 
  a 
  well-rounded 
  angle 
  into 
  the 
  inferiorly 
  

   vertical 
  lateral 
  lobes, 
  ferruginous 
  brown 
  above, 
  fading 
  out 
  on 
  the 
  meta- 
  

   zona 
  into 
  ferruginous, 
  luteo-testaceous 
  below; 
  front 
  margin 
  subtrun- 
  

   cate, 
  hind 
  margin 
  broadly 
  convex; 
  median 
  carina 
  percurrent, 
  slight, 
  

   the 
  transverse 
  sulci 
  of 
  the 
  prozona 
  slight 
  and 
  not 
  cutting 
  the 
  median 
  

   carina; 
  prozona 
  longitudinal, 
  very 
  sparsely 
  and 
  feebly 
  punctate, 
  about 
  

   a 
  third 
  longer 
  than 
  the 
  finely 
  and 
  densely 
  punctate 
  metazona. 
  Pro- 
  

   sternal 
  spine 
  short, 
  appressed 
  cylindrical, 
  blunt, 
  strongly 
  retrorse; 
  

   interspace 
  between 
  mesosternal 
  lobes 
  more 
  than 
  twice 
  as 
  long 
  as 
  broad 
  

   (male) 
  or 
  subquadrate 
  (female), 
  the 
  metasternal 
  lobes 
  subattiugent 
  

   (male) 
  or 
  subapproximate 
  (female). 
  Tegniina 
  broad 
  oval, 
  shorter 
  tlnm 
  

   the 
  prouotum, 
  very 
  broadly 
  rounded 
  apically, 
  overlapping, 
  wood-brown, 
  

   with 
  a 
  basal 
  blackiwSh 
  fuscous 
  cloud 
  in 
  the 
  costal 
  area. 
  Femora 
  luteo- 
  

   ferruginous, 
  the 
  fore 
  pair 
  feebly 
  tumid 
  in 
  the 
  male, 
  the 
  liiud 
  pair 
  dull 
  

   ferruginous 
  on 
  the 
  upper 
  face, 
  feebly 
  and 
  irregularly 
  blotched 
  or 
  freck- 
  

   led 
  with 
  light 
  fuscous 
  on 
  the 
  outer 
  and 
  inner 
  faces, 
  flavous 
  or 
  vinous 
  

   beneath, 
  the 
  genicular 
  arc 
  and 
  most 
  of 
  the 
  geniculation 
  black; 
  hind 
  

   tibiae 
  glaucous-green, 
  the 
  spines 
  black 
  with 
  pallid 
  bases, 
  ten 
  in 
  num- 
  

   ber 
  in 
  the 
  outer 
  series. 
  Thoracic 
  pleura 
  piceous, 
  with 
  the 
  front 
  face 
  of 
  

   the 
  mesothoracic 
  episterna 
  and 
  the 
  ridge 
  of 
  the 
  metathoracic 
  epimera 
  

   luteo-testaceous. 
  Abdomen 
  testaceous, 
  with 
  the 
  sides, 
  especially 
  of 
  

   basal 
  segments, 
  piceous 
  or 
  blackish 
  fuliginous; 
  extremity 
  in 
  the 
  male 
  

   clavate, 
  well 
  upturned, 
  the 
  supraanal 
  plate 
  broad 
  triangular, 
  the 
  apex 
  

   rectangulate 
  but 
  compressed 
  so 
  tbat 
  the 
  sides 
  are 
  sinuate, 
  the 
  lateral 
  

   halves 
  very 
  broadly 
  and 
  very 
  shallowly 
  sulcate, 
  the 
  median 
  sulcus 
  

   broad 
  at 
  base, 
  narrowing 
  as 
  far 
  as 
  the 
  middle 
  and 
  thereafter 
  narrow 
  

   and 
  percurrent, 
  its 
  lateral 
  walls 
  sharp 
  and 
  high 
  only 
  in 
  the 
  basal 
  por- 
  

   tion; 
  furcula 
  consisting 
  of 
  a 
  pair 
  of 
  lobate 
  distant 
  expansions 
  of 
  the 
  

   middle 
  of 
  the 
  last 
  dorsal 
  segment, 
  resting 
  upon 
  the 
  outer 
  side 
  of 
  the 
  

   base 
  of 
  the 
  marginal 
  ridges 
  of 
  the 
  median 
  sulcus 
  of 
  the 
  supraanal 
  

   plate; 
  cerci 
  moderately 
  broad, 
  straight, 
  slightly 
  tapering, 
  flat 
  on 
  the 
  

   external 
  face, 
  which 
  is 
  a 
  little 
  more 
  than 
  twice 
  as 
  long 
  as 
  the 
  median 
  

   breadth, 
  then 
  abruptly 
  recurved 
  inward, 
  leaving 
  a 
  ragged, 
  concave 
  ter- 
  

   minal 
  edge, 
  the 
  reversed 
  flange 
  a 
  little 
  longer 
  than 
  broad, 
  apically 
  

   rounded, 
  deeply 
  excavated, 
  pressing 
  against 
  the 
  compressed 
  portion 
  of 
  

   the 
  supraanal 
  plate; 
  subgenital 
  plate 
  small, 
  considerably 
  longer 
  than 
  

   broad, 
  not 
  prolonged, 
  of 
  equal 
  width 
  throughout, 
  excei)t 
  for 
  a 
  feeble 
  

   apical 
  elevation, 
  forming 
  a 
  small 
  blunt 
  tubercle. 
  

  

  Length 
  of 
  body, 
  male, 
  16.75 
  mm., 
  female, 
  21.5 
  mm.; 
  antennae, 
  female, 
  

   7.25 
  mm.; 
  tegmina, 
  male, 
  4 
  mm., 
  female, 
  4.75 
  mm.; 
  hind 
  femora, 
  male, 
  

   10.25 
  mm., 
  female, 
  12.5 
  mm. 
  

  

  One 
  male, 
  one 
  female. 
  Ciudad 
  del 
  Maiz, 
  San 
  Luis 
  Potosi, 
  Mexico, 
  

   E. 
  Palmer. 
  

  

  The 
  character 
  of 
  the 
  cerci 
  with 
  their 
  reversed 
  apex 
  distinguishes 
  this 
  

   species 
  at 
  a 
  glance 
  from 
  all 
  other 
  Melanopli. 
  

  

  