﻿388 
  riiOCEEDIXGS 
  of 
  the 
  national 
  museum. 
  vol. 
  XX. 
  

  

  ened 
  with 
  crimson 
  at 
  various 
  points, 
  especially 
  along 
  the 
  carinae, 
  upon 
  

   either 
  side 
  of 
  the 
  labruiii, 
  along- 
  the 
  clypeal 
  suture 
  and 
  the 
  margins 
  of 
  

   the 
  genae, 
  besides 
  a 
  mediodorsal 
  stri})e 
  on 
  the 
  vertex, 
  and 
  sometimes 
  an 
  

   oblique 
  genal 
  streak, 
  and 
  touches 
  behind 
  the 
  eyes; 
  eyes 
  of 
  female 
  sub- 
  

   truncate 
  anteriorly, 
  the 
  lower 
  i^ortion 
  of 
  their 
  front 
  with 
  a 
  distinct 
  jios- 
  

   terior 
  curv^e; 
  antennae 
  rather 
  slender, 
  apically 
  acuminate, 
  dark 
  fusco- 
  

   plnmbeous. 
  Pronotum 
  most 
  sparsely 
  pilose, 
  light 
  olivaceo-fuscous, 
  

   the 
  sulci 
  marked 
  with 
  blackish 
  fuscous, 
  a 
  mediodorsal 
  crimson 
  stripe, 
  

   and 
  crimson 
  margining 
  the 
  lateral 
  lobes 
  of 
  the 
  metazonn, 
  broadly 
  

   behind, 
  narrowly 
  beneath, 
  besides 
  touches 
  in 
  tlje 
  center 
  of 
  an 
  olivaceous 
  

   patch 
  in 
  the 
  upper 
  part 
  of 
  the 
  lateral 
  lobes 
  of 
  the 
  prozona 
  and 
  along 
  

   the 
  front 
  margin 
  of 
  the 
  same; 
  metazona 
  with 
  crowded 
  fine 
  punctuation 
  

   and 
  a 
  slight 
  median 
  carina, 
  the 
  hind 
  margin 
  obtusangulate, 
  the 
  angle 
  

   rounded. 
  Tegmina 
  far 
  surpassing 
  the 
  abdomen, 
  rather 
  slender, 
  hyaline 
  

   on 
  much 
  more 
  than 
  the 
  distal 
  half, 
  the 
  veins 
  pea-green 
  ; 
  wings 
  nearly 
  as 
  

   long 
  as 
  the 
  tegmina, 
  with 
  ample 
  breadth, 
  hyaline, 
  the 
  veins 
  pale 
  glau- 
  

   cous. 
  Fore 
  and 
  middle 
  femora 
  yellow 
  luteous, 
  longitudinally 
  and 
  nar- 
  

   rowly 
  striped 
  with 
  fuscous; 
  hind 
  femora 
  yellow 
  luteous, 
  the 
  outer 
  face 
  

   and 
  especially 
  its 
  lower 
  half, 
  excepting 
  a 
  pregenicular 
  band, 
  plumbeo- 
  

   fuscous, 
  the 
  upper 
  face 
  crossed 
  by 
  four 
  plumbeo- 
  fuscous 
  bands 
  — 
  a 
  basal 
  

   more 
  or 
  less 
  obsolete, 
  an 
  apical 
  covering 
  the 
  geniculation, 
  and 
  two 
  

   between; 
  hind 
  tibiae 
  and 
  tarsi 
  glaucous, 
  the 
  spines 
  pallid 
  glaucous 
  with 
  

   black 
  tips, 
  eight 
  in 
  number 
  in 
  both 
  sexes. 
  Abdomen 
  olivaceo-fuscous 
  

   above, 
  bright 
  yellow 
  beneath, 
  the 
  lower 
  margins 
  of 
  the 
  dorsal 
  plates 
  

   and 
  the 
  dorsal 
  carina 
  marked 
  with 
  carmine; 
  supraanal 
  plate 
  of 
  male 
  

   triangular 
  with 
  bluntly 
  pointed 
  apex, 
  the 
  surfiice 
  with 
  two 
  rather 
  dis- 
  

   tant, 
  i^arallel, 
  longitudinal, 
  somewhat 
  elevated 
  but 
  not 
  very 
  sharp 
  

   ridges, 
  extending 
  over 
  the 
  basal 
  two 
  thirds 
  of 
  the 
  plate, 
  inclosing 
  

   between 
  them 
  a 
  rather 
  broad, 
  snbequal, 
  moderately 
  deep 
  sulcus 
  which 
  

   does 
  not 
  continue 
  to 
  the 
  apex 
  ; 
  furcula 
  consisting 
  of 
  two 
  closely 
  approxi- 
  

   mated, 
  rounded, 
  little 
  projecting 
  lobes 
  lying 
  over 
  the 
  sulcus; 
  cerci 
  

   moderately 
  broad 
  and 
  laminate 
  at 
  base, 
  rapidly 
  tapering 
  on 
  basal 
  half, 
  

   largely 
  by 
  the 
  excision 
  of 
  the 
  upper 
  margin, 
  the 
  apical 
  half 
  or 
  more 
  sub- 
  

   cyiindrical, 
  very 
  slender, 
  equal, 
  terminating 
  bluntly, 
  gently 
  incurved; 
  

   infracercal 
  plates 
  concealed 
  by 
  the 
  recumbent 
  cerci; 
  lateral 
  margins 
  of 
  

   the 
  subgenital 
  plate 
  straight 
  bejond 
  the 
  ampliate 
  bases, 
  the 
  apical 
  

   tubercle 
  not 
  elevated 
  above 
  its 
  level, 
  rather 
  slight, 
  bifid. 
  

  

  Length 
  of 
  body, 
  male, 
  21 
  mm., 
  female, 
  20 
  mm.; 
  antennae, 
  male, 
  8.75 
  

   mm., 
  female, 
  9 
  mm.; 
  tegmina, 
  male, 
  18.25 
  mm., 
  female, 
  24.5 
  mm.; 
  hind 
  

   femora, 
  male, 
  10.5 
  mm., 
  female, 
  13.5 
  mm. 
  

  

  One 
  male, 
  1 
  female. 
  Bradshaw 
  Mountain, 
  Arizona, 
  June 
  21, 
  A. 
  B. 
  

   Cordley 
  (L. 
  Bruner). 
  

  

  The 
  bright 
  coloring 
  of 
  this 
  species 
  recalls 
  that 
  of 
  Dactylotnm. 
  Pro- 
  

   fessor 
  Bruner 
  informs 
  me 
  that 
  this 
  was 
  the 
  species 
  referred 
  to 
  by 
  

   Townsend 
  in 
  Insect 
  Life 
  (VI, 
  p. 
  30) 
  as 
  found 
  at 
  Hance's 
  in 
  the 
  Grand 
  

   Canon 
  of 
  the 
  Colorado, 
  3,000 
  to 
  5,000 
  feet 
  below 
  the 
  rim. 
  As 
  all 
  the 
  

  

  