﻿AMEMICAN 
  TYPHLOCTBINAE— 
  GILLETTE. 
  

  

  757 
  

  

  ">efore; 
  anteunie, 
  seta 
  as 
  long 
  as 
  the 
  head 
  and 
  thorax, 
  dusky: 
  thorax 
  with 
  two 
  san- 
  

  

  „niiieous 
  lines; 
  scutel 
  with 
  two 
  lines 
  and 
  tip 
  sangnineons; 
  hemelytni 
  whitish, 
  an 
  

   'hli([ne 
  line 
  from 
  the 
  hase 
  slightly 
  refracted 
  on 
  the 
  thinner 
  margin, 
  and 
  terminating 
  

  

  behind 
  the 
  middle 
  of 
  the 
  margin; 
  an 
  oblique 
  longitudinal 
  line 
  on 
  the 
  disk, 
  a 
  more 
  

   •bbreviated, 
  obsolete, 
  subcostal 
  line, 
  and 
  a 
  costal 
  line 
  from 
  the 
  base 
  to 
  the 
  middle 
  

   )f 
  the 
  edge, 
  sanguineous; 
  feet 
  whitish; 
  tail 
  rosaceous. 
  Length 
  rather 
  more 
  than 
  

  

  jne-teutli 
  of 
  an 
  inch. 
  Found 
  at 
  Engineer 
  Cantonment, 
  and 
  is 
  also 
  common 
  in 
  I'enn. 
  

  

  In 
  the 
  Transactions 
  of 
  tlie 
  New 
  York 
  State 
  Agricultural 
  Society 
  uien- 
  

   tioned 
  above. 
  Doctor 
  Fitch 
  speaks 
  of 
  this 
  insect 
  as 
  follows: 
  

  

  A 
  very 
  small 
  white 
  leaf 
  hopper 
  0.12 
  (inch) 
  long, 
  its 
  head 
  and 
  thorux 
  with 
  two 
  bright 
  

   l>]ood-red 
  or 
  orange 
  stripes 
  and 
  three 
  short 
  oblique 
  ones 
  on 
  the 
  wing 
  covers, 
  the 
  

   outer 
  one 
  placed 
  on 
  the 
  shoulder, 
  the 
  middle 
  one 
  on 
  the 
  disk, 
  and 
  the 
  inner 
  <me 
  end- 
  

   ing 
  on 
  the 
  middle 
  of 
  the 
  inner 
  margin 
  This 
  is 
  common, 
  particularly 
  upon 
  the 
  bushes 
  

   of 
  the 
  wild 
  currant, 
  bnt 
  occurs 
  on 
  various 
  other 
  shrubs 
  and 
  trees 
  throughout 
  the 
  

   year. 
  It 
  is 
  subject 
  to 
  considerable 
  variations, 
  the 
  stripes 
  being 
  sometimes 
  of 
  a 
  pale 
  

   yellow 
  color, 
  and 
  one 
  i»r 
  another 
  of 
  them 
  wanting. 
  Commonly 
  three 
  black 
  or 
  dusky 
  

   (lots 
  may 
  be 
  seen 
  on 
  the 
  wing 
  covers 
  in 
  iin 
  obliipie 
  row 
  forward 
  of 
  the 
  membi'anous 
  

   tips. 
  (See 
  Figs. 
  114. 
  115. 
  ) 
  

  

  Tbis 
  is 
  one 
  of 
  the 
  orape-infesting" 
  species 
  and 
  is 
  commonly 
  taken 
  along 
  

   with 
  eomen 
  and 
  its 
  varieties. 
  

  

  I 
  have 
  received 
  specimens 
  as 
  follows 
  : 
  from 
  Th. 
  Pergande, 
  labeled, 
  

   "U. 
  (^. 
  On 
  Oak;"' 
  from 
  Mr. 
  Otto 
  

   Heidemann, 
  labeled 
  "D. 
  C.;" 
  from 
  

   Professor 
  G. 
  C. 
  Davis, 
  labeled 
  ••Ag, 
  

   Coll. 
  Mich., 
  on 
  A])ple, 
  July 
  lo;" 
  

   from 
  Illinois 
  State 
  Laboratory 
  of 
  

   Natural 
  History, 
  taken 
  at 
  Cham- 
  

   paign. 
  Illinois, 
  in 
  general 
  sweeping; 
  

   from 
  Mr. 
  C. 
  A. 
  Hart, 
  labeled 
  32, 
  

   335, 
  448, 
  419, 
  474, 
  512, 
  and 
  535 
  ; 
  from 
  

   the 
  IT. 
  S. 
  National 
  Museum, 
  labeled, 
  

   "Calif.," 
  "D. 
  C..'' 
  "la," 
  "Me." 
  

   and 
  "Mo.:" 
  and 
  from 
  Mr. 
  F. 
  F. 
  

   Cievecceur 
  labeled, 
  "Taken 
  among 
  leaves 
  in 
  timber 
  near 
  Onaga, 
  

   Kansas." 
  

  

  I 
  have 
  taken 
  this 
  species 
  in 
  general 
  sweeping 
  near 
  Fort 
  Collins, 
  along 
  

   the 
  river 
  and 
  in 
  the 
  foothills, 
  and 
  also 
  at 
  Canyon 
  City, 
  Colorado, 
  on 
  plum 
  

   and 
  at 
  Manitou, 
  Colorado, 
  on 
  oak. 
  

  

  I 
  find 
  the 
  following 
  very 
  well 
  marked 
  varieties 
  in 
  this 
  species 
  which 
  

   have 
  not 
  been 
  characterized. 
  Some 
  of 
  these 
  may 
  prove 
  to 
  be 
  worthy 
  

   of 
  specific 
  rank, 
  but 
  T 
  do 
  not 
  feel 
  safe 
  in 
  so 
  placing 
  any 
  of 
  them 
  at 
  

   present. 
  

  

  Varieti/ 
  (lorsnlis. 
  new 
  variety 
  has 
  the 
  red 
  markings 
  so 
  run 
  together 
  

   as 
  to 
  form 
  a 
  continuous 
  red 
  or 
  dark 
  (sometimes 
  almost 
  black) 
  dorsal 
  

   stripe 
  tlie 
  entire 
  length 
  of 
  the 
  insect. 
  This 
  is 
  a 
  common 
  variety 
  that 
  

   I 
  have 
  seen 
  from 
  maiij' 
  localities. 
  

  

  Variety 
  nopvns, 
  new 
  variety 
  has 
  the 
  tyi)ical 
  red 
  lining, 
  but 
  the 
  scutel- 
  

   lum 
  and 
  hind 
  margin 
  of 
  the 
  pronotum 
  are 
  more 
  or 
  less 
  black. 
  This 
  is 
  

  

  Figs. 
  114 
  and 
  115.— 
  Elvtkon 
  and 
  win(; 
  oftvchlo- 
  

  

  rVBA 
  OBLIQUA. 
  

  

  