﻿NO. 
  1956. 
  TALE 
  PERUVIAN 
  EXPEDITION, 
  ORTHOPTERA—CAVDELL. 
  357 
  

  

  swollen; 
  upper 
  inner 
  ciilcar 
  of 
  hind 
  tibiae 
  a 
  little 
  longer 
  than 
  the 
  

   middle 
  one 
  and 
  gently 
  curved; 
  the 
  mner 
  apical 
  calcar 
  of 
  the 
  posterior 
  

   metatarsus 
  is 
  very 
  large 
  and 
  almost 
  half 
  as 
  long 
  as 
  the 
  metatarsus, 
  

   about 
  twice 
  as 
  long 
  as 
  the 
  outer 
  calcar. 
  Ovipositor 
  rudimentary 
  as 
  

   usual 
  in 
  the 
  genus. 
  

  

  Male. 
  — 
  Similar 
  to 
  the 
  female 
  except 
  that 
  the 
  wings 
  are 
  aborted, 
  

   the 
  elytra, 
  however, 
  long 
  and 
  apically 
  pointed 
  as 
  in 
  the 
  female. 
  The 
  

   lateral 
  field 
  of 
  the 
  elytra 
  is 
  also 
  lighter 
  and 
  the 
  lateral 
  lobes 
  of 
  pro- 
  

   notum 
  bear 
  a 
  fleck 
  of 
  yellowish 
  on 
  the 
  lower 
  front 
  comer. 
  

  

  General 
  color 
  blacldsh 
  above 
  and 
  yellowish 
  beneath. 
  The 
  legs 
  

   and 
  mouth 
  parts 
  and 
  venter 
  of 
  abdomen 
  are 
  yellowish 
  brown, 
  while 
  

   the 
  whole 
  upper 
  surface 
  of 
  head, 
  thorax, 
  and 
  elytra 
  is 
  blackish 
  brown, 
  

   almost 
  black; 
  the 
  wings 
  and 
  lateral 
  field 
  of 
  the 
  elytra 
  are 
  a 
  little 
  

   lighter 
  than 
  the 
  dorsal 
  surface; 
  the 
  lateral 
  lobes 
  of 
  the 
  pronotum 
  are 
  

   uniformly 
  blackish; 
  antennae 
  brown. 
  

  

  Length, 
  from 
  front 
  of 
  head 
  to 
  end 
  of 
  elytra, 
  male 
  and 
  female, 
  20 
  

   mm.; 
  pronotum, 
  male 
  and 
  female, 
  4 
  mm.; 
  elytra, 
  male 
  and 
  female, 
  

   13.5 
  mm.; 
  hind 
  femora, 
  male 
  and 
  female, 
  12.5 
  mm.; 
  whig 
  beyond 
  

   elytra, 
  female, 
  12 
  mm.; 
  width, 
  pronotum, 
  male 
  and 
  female, 
  5.5 
  mm. 
  

  

  Type. 
  — 
  One 
  male, 
  one 
  female, 
  Pampaconas 
  River, 
  August. 
  Type, 
  

   female, 
  paratj^e 
  male. 
  Cat. 
  No. 
  15054, 
  U.S.N.M. 
  

  

  The 
  three 
  species 
  of 
  this 
  genus 
  occurring 
  in 
  South 
  America, 
  one 
  of 
  

   wliich 
  I 
  consider 
  as 
  of 
  varietal 
  rank 
  only, 
  may 
  be 
  separated 
  as 
  follows: 
  

  

  Lateral 
  lobes 
  of 
  pronotum 
  uniformly 
  yellowish 
  or 
  infuscated 
  only 
  centrally. 
  

  

  Vertex 
  of 
  head 
  unicolorous 
  muticus 
  DeGeer. 
  

  

  Vertex 
  of 
  head 
  marked 
  by 
  three 
  or 
  four 
  longitudinal 
  lines. 
  

  

  muticus 
  var. 
  clarazianus 
  Saussure. 
  

   Lateral 
  lobes 
  of 
  pronot-um 
  almost 
  or 
  quite 
  uniformly 
  blackish 
  . 
  . 
  fiiscus, 
  new 
  species. 
  

  

  All 
  these 
  forms 
  are 
  dimorphic 
  in 
  wing 
  length, 
  some 
  having 
  the 
  

   wings 
  caudate 
  and 
  others 
  with 
  them 
  abortive. 
  

  

  GRYLLUS, 
  species. 
  

  

  Eight 
  inamature 
  specimens, 
  two 
  from 
  Urubamba, 
  July 
  15, 
  9,500 
  

   feet 
  altitude; 
  three 
  from 
  San 
  Miguel, 
  July 
  24, 
  6,000 
  feet 
  altitude; 
  

   three 
  from 
  Huadquma, 
  July 
  14, 
  5,000 
  feet 
  altitude. 
  These 
  may 
  

   represent 
  two 
  or 
  more 
  species. 
  

  

  AMUSUS 
  KIRSCHIANUS 
  Saussure. 
  

  

  One 
  female, 
  Pampaconas 
  River, 
  August. 
  

  

  This 
  is 
  considerably 
  smaller 
  than 
  the 
  measurements 
  given 
  for 
  the 
  

   type, 
  but 
  otherwise 
  fits 
  the 
  description 
  very 
  well. 
  

  

  ENEOPTERA 
  SURINAMENSIS 
  DeGeer. 
  

  

  One 
  female, 
  Santa 
  Ana, 
  August 
  4, 
  3,000 
  feet 
  altitude. 
  

  

  