﻿NO. 
  1124. 
  BEVISIOX 
  OF 
  THE 
  MELAXOPLI—SCUDDEB. 
  183 
  

  

  or 
  mouutaiuoiis 
  regions 
  . 
  . 
  .; 
  it 
  seems 
  also 
  to 
  prefer 
  a 
  wooded 
  or 
  mixed 
  

   country 
  to 
  tlie 
  open 
  prairies 
  or 
  plains." 
  

  

  This 
  is 
  one 
  of 
  the 
  most 
  variable 
  of 
  the 
  Melauopli, 
  and 
  it 
  is 
  some- 
  

   times 
  difficult 
  to 
  distinguish 
  from 
  its 
  immediate 
  allies. 
  The 
  above 
  

   description 
  is 
  drawn 
  up 
  primarily 
  from 
  Eastern 
  examples 
  which 
  came 
  

   from 
  the 
  rejiion 
  from 
  which 
  the 
  species 
  was 
  originally 
  described. 
  

   Specimens 
  from 
  the 
  dry 
  plains 
  of 
  the 
  West 
  (especially 
  noted 
  in 
  those 
  

   from 
  Utah) 
  are 
  decidedly 
  paler 
  and 
  more 
  cinereous 
  in 
  aspect 
  than 
  those 
  

   from 
  relatively 
  fertile 
  country, 
  and 
  they 
  have 
  often 
  a 
  Havous 
  stripe 
  

   bordering' 
  the 
  eye 
  and 
  continued 
  along- 
  the 
  position 
  of 
  the 
  lateral 
  

   carinae; 
  a 
  similar 
  but 
  not 
  so 
  striking 
  a 
  cinereous 
  hue 
  attaches 
  to 
  those 
  

   that 
  occur 
  in 
  sandy 
  localities 
  in 
  the 
  Eastern 
  States, 
  as 
  along 
  the 
  sea 
  

   margin. 
  The 
  exact 
  contrary 
  is 
  shown 
  in 
  Canada 
  just 
  east 
  of 
  the 
  Eocky 
  

   Mountains, 
  where 
  the 
  specimens 
  are 
  exceedingly 
  dark 
  in 
  color, 
  almost 
  

   blackish 
  fuscous, 
  with 
  heavy 
  fasciatiou 
  of 
  the 
  hind 
  femora 
  ; 
  ^ 
  but 
  here 
  

   again 
  a 
  difference 
  of 
  another 
  sort 
  occurs 
  as 
  one 
  passes 
  eastward, 
  speci- 
  

   mens 
  from 
  Laggan 
  and 
  Banff 
  almost 
  invariably 
  having 
  relatively 
  long 
  

   and 
  slender 
  male 
  cerci, 
  while 
  at 
  Calgary 
  all 
  that 
  have 
  been 
  seen 
  (with 
  

   a 
  very 
  few 
  from 
  the 
  former 
  localities) 
  have 
  male 
  cerci 
  hardly 
  more 
  

   than 
  half 
  as 
  long 
  again 
  as 
  broad. 
  Specimens 
  from 
  Mexico, 
  however, 
  

   agree 
  very 
  closely 
  with 
  those 
  from 
  Kew 
  England. 
  

  

  Specimens 
  with 
  green 
  hind 
  tibiae 
  have 
  been 
  seen 
  by 
  me 
  from 
  the 
  

   White 
  Mountains, 
  Xew 
  Hampshire, 
  but 
  not 
  from 
  the 
  summits 
  (except 
  

   Kearsarge 
  3,251 
  feet), 
  from 
  the 
  vicinity 
  of 
  Boston, 
  at 
  Provincetown, 
  

   and 
  on 
  the 
  island 
  of 
  Nantucket, 
  Massachusetts, 
  from 
  Laggan, 
  Alberta, 
  

   the 
  Yellowstone 
  region, 
  Montana, 
  Wyoming, 
  Nebraska, 
  Missouri, 
  Colo- 
  

   rado, 
  from 
  the 
  Salt 
  Lake 
  valley 
  and 
  American 
  Fork 
  Canyon 
  (9,500 
  feet), 
  

   L^tah, 
  Texas, 
  and 
  Chihuahua, 
  Mexico. 
  Specimens 
  with 
  dark 
  blue 
  

   hind 
  tibiae 
  have 
  been 
  seen 
  from 
  Iowa, 
  Colorado, 
  American 
  Fork 
  Canj'on, 
  

   Utah, 
  and 
  Texas. 
  In 
  nearly 
  or 
  (piite 
  all 
  these 
  cases 
  specimens 
  with 
  

   red 
  hind 
  tibiae 
  predominated 
  in 
  the 
  same 
  district. 
  

  

  According 
  to 
  Riley 
  the 
  first 
  mature 
  insects 
  observed 
  one 
  year 
  about 
  

   St. 
  Louis, 
  Missouri, 
  appeared 
  July 
  12, 
  and 
  deposited 
  eggs 
  by 
  July 
  20. 
  

   The 
  eggs 
  had 
  a 
  quadrilinear 
  arrangement 
  in 
  the 
  pod, 
  hatched 
  in 
  from 
  

   three 
  to 
  four 
  weeks, 
  and 
  the 
  young 
  took 
  eighty 
  days 
  to 
  reach 
  maturity. 
  

   He 
  says 
  he 
  has 
  pi-oved 
  that 
  the 
  insect 
  is 
  there 
  double-brooded, 
  though 
  

   I 
  find 
  no 
  data 
  published 
  by 
  him 
  in 
  support 
  of 
  the 
  statement, 
  and 
  the 
  

   above 
  facts 
  drawn 
  from 
  his 
  writings 
  militate 
  against 
  it. 
  Bruner, 
  how- 
  

   ever, 
  agrees 
  with 
  it, 
  saying 
  that 
  in 
  the 
  District 
  of 
  Columbia 
  a 
  second 
  

   brood 
  appears 
  in 
  the 
  late 
  autumn, 
  composed 
  of 
  smaller 
  and 
  darker 
  

   individuals. 
  I 
  have 
  seen 
  nothing 
  of 
  the 
  kind 
  in 
  New 
  England. 
  

  

  Tlie 
  points 
  in 
  which 
  the 
  unfledged 
  locusts 
  differ 
  from 
  the 
  same 
  stages 
  

   in 
  .If. 
  spretus 
  and 
  Jl. 
  /emur-rubrum 
  are 
  explained 
  and 
  figured 
  in 
  the 
  

   first 
  report 
  of 
  the 
  United 
  States 
  Entomological 
  Commission, 
  in 
  which 
  

   many 
  other 
  interesting 
  i)oints 
  regarding' 
  this 
  species 
  will 
  be 
  found. 
  

  

  ' 
  Specimens 
  from 
  Sudbury, 
  Ontario, 
  are 
  similarly 
  dark. 
  

  

  