﻿NO. 
  1124. 
  REVISION 
  OF 
  THE 
  MELAXOPLI—SC 
  UDDER. 
  HI 
  

  

  walls; 
  furcula 
  consisting 
  of 
  a 
  pair 
  of 
  parallel 
  or 
  feebly 
  divergent, 
  flat- 
  

   tened, 
  slender, 
  tapering, 
  blnntly 
  acnminate 
  fingers 
  nearly 
  half 
  as 
  long 
  

   as 
  the 
  supraaual 
  plate 
  ; 
  cerci 
  subeqnal 
  compressed 
  laminae, 
  a 
  little 
  more 
  

   than 
  twice 
  as 
  long 
  as 
  broad, 
  nearly 
  straight 
  but 
  feebly 
  arcuate 
  and 
  

   feebly 
  incurved, 
  not 
  so 
  long 
  as 
  the 
  supraanal 
  plate, 
  well 
  rounded 
  

   apically, 
  sometimes 
  feebly 
  dimpled 
  apically 
  on 
  the 
  exterior 
  surface; 
  

   subgenital 
  plate 
  of 
  equal 
  length 
  and 
  breadth, 
  broadly 
  subconical, 
  the 
  

   apical 
  margin 
  slightly 
  elevated 
  and 
  subtuberculate. 
  

  

  Length 
  of 
  body, 
  male, 
  17 
  mm., 
  female, 
  24 
  mm.; 
  anteniuie, 
  male, 
  

   0.75 
  mm., 
  female, 
  6.25 
  mm.; 
  tegmina, 
  male, 
  4.75 
  mm., 
  female, 
  5 
  mm.; 
  

   hind 
  femora, 
  male, 
  10 
  mm., 
  female, 
  11.75 
  mm. 
  

  

  Fourteen 
  males, 
  21 
  females. 
  Idaho 
  (U.S.X.M. 
  — 
  Riley 
  collection); 
  

   Henry 
  Lake, 
  Idaho, 
  August 
  (same; 
  L. 
  Bruner); 
  Yellowstone, 
  Mon- 
  

   tana 
  (U.S.N.^M. 
  — 
  Eiley 
  collection); 
  Fort 
  McLeod, 
  Alberta, 
  August 
  

   (same; 
  L. 
  Bruner.) 
  It 
  was 
  originally 
  described 
  by 
  Thomas 
  from 
  

   Oregon. 
  

  

  Thomas's 
  text 
  refers 
  to 
  an 
  illustration 
  on 
  a 
  plate, 
  but 
  another 
  species 
  

   was 
  there 
  substituted 
  for 
  it. 
  His 
  types 
  do 
  not 
  appear 
  to 
  exist, 
  but 
  I 
  

   think 
  there 
  can 
  be 
  little 
  doubt 
  that 
  this 
  is 
  his 
  species, 
  his 
  description 
  

   agreeing 
  exceptionally 
  well 
  and 
  certainly 
  applying 
  to 
  no 
  other 
  insect 
  I 
  

   have 
  seen. 
  I 
  am 
  also 
  drawn 
  to 
  this 
  conclusion 
  by 
  notes 
  taken 
  many 
  

   years 
  ago 
  upon 
  examination 
  of 
  his 
  types. 
  

  

  ANALYTICAL 
  KEY 
  TO 
  THE 
  OLD 
  WORLD 
  SPECIES 
  OF 
  PODISMA. 
  

  

  A'. 
  Subgenital 
  plate 
  of 
  male 
  normal, 
  as 
  seen 
  from 
  above 
  at 
  least 
  as 
  long 
  as 
  broad, 
  

   apically 
  narrowing 
  (Podisma, 
  s. 
  s.). 
  

   bK 
  Tegmina 
  absent. 
  

   cK 
  Sides 
  of 
  first 
  abdominal 
  segment 
  with 
  no 
  distinct 
  tympanum. 
  

   dK 
  Disk 
  of 
  pronotum 
  smooth, 
  at 
  least 
  on 
  jtrozona. 
  

  

  eK 
  Hind 
  tibiae 
  red; 
  lobes 
  of 
  male 
  furcula 
  very 
  distant; 
  cerci 
  very 
  short, 
  

   styliform, 
  acuminate; 
  subgenital 
  plate 
  not 
  prolonged 
  beyond 
  its 
  apical 
  

  

  margin 
  9. 
  pedemontana 
  (p. 
  112). 
  

  

  e-. 
  Hiud 
  tibiae 
  lutesceut; 
  lobes 
  of 
  male 
  furcula 
  attingeut; 
  cerci 
  moder- 
  

   ately 
  long, 
  sul)compres8ed, 
  slightly 
  dilated 
  apically 
  ; 
  subgenital 
  plate 
  pro- 
  

   longed 
  as 
  a 
  tubercle 
  beyond 
  its 
  apical 
  margin 
  10. 
  cobellii 
  (p. 
  113). 
  

  

  d^. 
  Disk 
  of 
  pronotum 
  rugulose 
  throughout. 
  

  

  e'. 
  Hind 
  femora 
  pallid 
  beneath 
  ; 
  hind 
  tibiae 
  rufescent.. 
  . 
  11. 
  costae 
  (\). 
  113). 
  

  

  e^. 
  Hind 
  femora 
  red 
  or 
  reddish 
  beneath; 
  hind 
  tibiae 
  sordid 
  blue. 
  

  

  fK 
  Pronotum 
  of 
  female 
  enlarging 
  but 
  little 
  posteriorly; 
  lobes 
  of 
  male 
  

  

  furcula 
  stout 
  though 
  small, 
  rounded; 
  subgenital 
  plate 
  as 
  broad 
  as 
  long, 
  

  

  the 
  apical 
  margin 
  broadly 
  rounded, 
  with 
  a 
  feeble, 
  indistinct, 
  and 
  blunt 
  

  

  tubercle 
  12. 
  parnassica 
  (p. 
  113). 
  

  

  /-. 
  Pronotum 
  of 
  female 
  enlarging 
  posteriorly 
  rapidly 
  and 
  considerably; 
  

   lobes 
  of 
  male 
  furcula 
  slight 
  and 
  minute, 
  elongate; 
  subgenital 
  plate 
  much 
  

   longer 
  than 
  broad, 
  the 
  apical 
  margin 
  angulate, 
  with 
  a 
  small 
  but 
  dis- 
  

   tinct 
  and 
  slightly 
  elevated 
  tubercle 
  13. 
  pyrenaea 
  (p. 
  114). 
  

  

  c'K 
  Sides 
  of 
  first 
  abdominal 
  segment 
  with 
  a 
  distinct 
  tympanum. 
  

  

  f?'. 
  Hind 
  tibiae 
  Havo-olivaceous 
  ; 
  lateral 
  halves 
  of 
  last 
  dorsal 
  segment 
  of 
  male 
  

   widely 
  separated 
  ; 
  cerci 
  tapering 
  almost 
  regularly 
  throughout, 
  equal 
  for 
  a 
  short 
  

   distance 
  beyond 
  the 
  middle; 
  subgenital 
  plate 
  elongate, 
  its 
  apical 
  margin 
  sub- 
  

   angulate 
  as 
  seen 
  from 
  above 
  14. 
  salamandra 
  (p. 
  114). 
  

  

  