﻿198 
  PEOCEEDIXGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM. 
  vol. 
  xx. 
  

  

  County, 
  July 
  2 
  (same); 
  Marm 
  County, 
  California, 
  August 
  (same); 
  

   Sauzalito, 
  Marin 
  County, 
  California, 
  Bebrens; 
  San 
  Francisco, 
  California, 
  

   September, 
  October 
  15, 
  November 
  (U.S.^ST.M. 
  — 
  Riley 
  collection 
  ; 
  S. 
  H. 
  

   Scudder; 
  Museum 
  Comparative 
  Zoology); 
  Alameda, 
  California, 
  Decem- 
  

   ber 
  15 
  (U.S.N.M. 
  — 
  Eiley 
  collection) 
  ; 
  Merced 
  County, 
  California 
  (same) 
  ; 
  

   Atwater, 
  Merced 
  County, 
  California, 
  July 
  29, 
  Coquillett 
  (same); 
  Los 
  

   Angeles, 
  California, 
  June, 
  August, 
  in 
  coitu 
  September 
  20, 
  Coquillett, 
  

   October 
  24 
  (same; 
  S. 
  H. 
  Scudder); 
  Pasadena, 
  Los 
  Angeles 
  County, 
  

   California, 
  October 
  23; 
  Tiglies, 
  San 
  Diego 
  County, 
  California, 
  Palmer; 
  

   Southern 
  California, 
  Coquillett 
  (U.S.N.M. 
  — 
  Hiley 
  collection). 
  

  

  The 
  species 
  has 
  also 
  been 
  reported 
  from 
  various 
  other 
  counties 
  in 
  

   California, 
  mostly 
  in 
  the 
  central 
  portions 
  of 
  the 
  State, 
  such 
  as 
  Fresno, 
  

   Yuba, 
  Xapa 
  (Riley), 
  Sutter, 
  San 
  Joaciuin 
  (Coquillett), 
  and 
  Lake 
  Tahoe, 
  

   Placer 
  County 
  (Scudder), 
  as 
  well 
  as 
  from 
  districts 
  immediately 
  adjoin- 
  

   ing 
  California, 
  as 
  the 
  adjacent 
  parts 
  of 
  Oregon 
  (Bruner), 
  Reno, 
  Washoe 
  

   County, 
  and 
  Glen 
  Brook, 
  Douglas 
  County, 
  Nevada 
  (Scudder), 
  and 
  Ari- 
  

   zona 
  (Bruner). 
  

  

  It 
  has 
  also 
  been 
  stated 
  to 
  occur 
  in 
  Colorado 
  (Scudder), 
  Kansas, 
  Xorth 
  

   Dakota, 
  northwest 
  Wyoming, 
  and 
  Montana 
  (Bruner), 
  Idaho 
  (Bruner, 
  

   Milliken), 
  and 
  in 
  L"'tah 
  in 
  the 
  Salt 
  Lake 
  Valley 
  (Scudder) 
  and 
  Xephi, 
  

   Juab 
  County 
  (Riley); 
  but 
  certainly 
  in 
  some, 
  and 
  probably 
  in 
  all 
  these 
  

   cases, 
  the 
  insect 
  reported 
  was 
  mistakenly 
  supposed 
  to 
  be 
  this 
  species. 
  

  

  Coquillett 
  describes 
  a 
  dipterous 
  parasite, 
  Sarcopliaga 
  opifera, 
  as 
  found 
  

   in 
  this 
  species, 
  and 
  gives 
  in 
  the 
  Twenty-seventh 
  Bulletin 
  of 
  the 
  Ento- 
  

   mological 
  Bureau 
  at 
  Washington 
  a 
  full 
  account 
  of 
  the 
  ravages 
  of 
  this 
  

   locust 
  in 
  California, 
  where 
  they 
  appear 
  to 
  do 
  most 
  damage 
  to 
  vineyards 
  

   and 
  to 
  deciduous 
  fruit 
  trees, 
  the 
  latter 
  of 
  which 
  always 
  suffer 
  the 
  most 
  

   in 
  the 
  vicinity 
  of 
  grain 
  fields, 
  upon 
  which 
  the 
  migrating 
  swarms 
  appear 
  

   always 
  to 
  descend, 
  attracted, 
  perhaps, 
  by 
  their 
  color. 
  Grain, 
  however, 
  

   appears 
  to 
  suffer 
  relatively 
  little 
  at 
  their 
  hands, 
  though 
  alfalfa 
  proves 
  

   attractive. 
  

  

  A 
  description 
  of 
  the 
  colors 
  of 
  the 
  living 
  young, 
  by 
  Mr. 
  Coquillett, 
  

   will 
  be 
  found 
  in 
  the 
  report 
  of 
  the 
  United 
  States 
  Entomologist 
  for 
  1885, 
  

   page 
  293. 
  

  

  The 
  species 
  is 
  an 
  exceedingly 
  variable 
  one, 
  and 
  with 
  limited 
  material 
  

   it 
  would 
  be 
  difficult 
  to 
  believe 
  that 
  there 
  was 
  but 
  a 
  single 
  species, 
  so 
  

   widely 
  different 
  is 
  the 
  appearance 
  of 
  the 
  extremes. 
  This, 
  I 
  suspect, 
  

   will 
  prove 
  partly 
  dei)endent 
  upon 
  station, 
  though 
  the 
  different 
  forms 
  

   into 
  which 
  I 
  would 
  provisionally 
  separate 
  the 
  species 
  appear 
  to 
  be 
  

   found 
  indifferently 
  in 
  almost 
  all 
  parts 
  of 
  the 
  State, 
  though, 
  as 
  far 
  as 
  the 
  

   collections 
  before 
  me 
  show, 
  all 
  appear 
  to 
  be 
  more 
  abundant 
  in 
  the 
  cen- 
  

   tral 
  and 
  northern 
  portions. 
  

  

  There 
  is 
  first 
  the 
  dark 
  and 
  rather 
  small 
  form, 
  which 
  is 
  prevalent 
  

   about 
  San 
  Francisco, 
  and 
  which 
  may 
  be 
  called 
  21. 
  d. 
  ohscurus 
  (Plate 
  

   XIII, 
  figs. 
  3, 
  4). 
  It 
  is 
  also 
  found 
  in 
  Sierra, 
  Placer, 
  Marin, 
  Sacramento, 
  

   Eldorado, 
  and 
  Alameda 
  counties, 
  as 
  well 
  as 
  in 
  Siskiyou 
  County, 
  in 
  the 
  

  

  