﻿No.li:58. 
  AMERICAN 
  TYPELOCTBIXAE— 
  GILLETTE. 
  745 
  

  

  Empoa 
  albojncta 
  Fokbes, 
  Thirteenth 
  Rep. 
  111. 
  St. 
  Eiit., 
  p. 
  181, 
  pi. 
  xiv, 
  1883; 
  Four- 
  

   teeuth 
  Rep. 
  111. 
  St. 
  Eut.jp. 
  117, 
  18S4.— 
  Weki), 
  Insects 
  and 
  Insecticides, 
  p. 
  99, 
  

   fig. 
  15, 
  p. 
  151, 
  1891, 
  1895. 
  

  

  Empoasca 
  albopicta 
  Woodwouth, 
  I'sycbe, 
  \\ 
  p. 
  213, 
  1889. 
  — 
  ^'AX 
  I)uzek, 
  Traus. 
  

   Am. 
  Eut. 
  Soc, 
  XXI, 
  p. 
  310, 
  1894. 
  

  

  According 
  to 
  Doctor 
  Le 
  Barou: 
  

  

  This 
  little 
  insect 
  is 
  about 
  one-eighth 
  of 
  an 
  inch 
  long, 
  yellowish 
  green, 
  forehead 
  

   and 
  crown 
  freckled 
  with 
  white; 
  a 
  series 
  of 
  white 
  spots 
  along 
  the 
  anterior 
  margin 
  of 
  

   the 
  prothorax; 
  two 
  white 
  stripes 
  on 
  the 
  uieso-thorax 
  united 
  in 
  the 
  middle 
  by 
  a 
  trans- 
  

   verse 
  stripe, 
  like 
  the 
  letter 
  H; 
  a 
  triangular 
  white 
  spot 
  on 
  the 
  scutellum, 
  with 
  a 
  

   smaller 
  spot 
  on 
  each 
  side 
  of 
  it; 
  sexual 
  appendages 
  in 
  both 
  sexes 
  ciliated, 
  or 
  bordered 
  

   with 
  line 
  fringe. 
  The 
  eyes 
  are 
  pearl 
  white 
  in 
  the 
  living 
  insect, 
  but 
  become 
  brown 
  

   after 
  death. 
  

  

  Doctor 
  Le 
  Barou 
  ineiitioned 
  tliis 
  insect 
  as 
  occurring 
  ou 
  apple 
  5 
  Doctor 
  

   Forbes 
  records 
  it 
  as 
  injuriously 
  abundant 
  on 
  apple, 
  currant, 
  aud 
  goose- 
  

   berry, 
  and 
  Doctor 
  Weed 
  mentions 
  it 
  as 
  occurring 
  upon 
  all 
  these 
  plants 
  

   and 
  others. 
  

  

  I 
  have 
  received 
  this 
  species 
  as 
  follows: 
  From 
  Professor 
  G. 
  C. 
  Davis, 
  

   taken 
  in 
  July 
  on 
  beans, 
  liotatoes.plum, 
  and 
  wild 
  grapes, 
  near 
  Michigan 
  

   Agricultural 
  College 
  ; 
  from 
  Doctor 
  Forbes 
  ( 
  iS'2A9 
  and 
  10383) 
  ou 
  corn, 
  June 
  ; 
  

   from 
  Mr. 
  E. 
  P. 
  Van 
  Duzee, 
  Buffalo, 
  New 
  Yorlv, 
  on 
  PopnluH 
  monUifera, 
  

   May; 
  from 
  Mr. 
  Th. 
  Pergande 
  and 
  also 
  Mr. 
  Otto 
  Heidcmann, 
  specimens 
  

   marked 
  '' 
  D. 
  Cy' 
  from 
  Mr. 
  C. 
  A. 
  Hart, 
  Champaign, 
  Illinois, 
  specimens 
  

   marked 
  313, 
  332, 
  481, 
  512, 
  515, 
  and 
  oS4:; 
  from 
  Professor 
  H. 
  E. 
  Weed, 
  

   specimens 
  marked 
  ''Ag. 
  Coll. 
  Miss., 
  July, 
  '91," 
  and 
  from 
  the 
  U. 
  S. 
  

   National 
  Museum 
  specimens 
  marked 
  "Mo., 
  May." 
  

  

  This 
  species 
  can 
  nearly 
  always 
  be 
  quickly 
  separated 
  from 
  closely 
  

   related 
  species 
  by 
  the 
  row 
  of 
  six 
  to 
  eight 
  (not 
  three) 
  white 
  spots 
  on 
  the 
  

   front 
  margin 
  of 
  the 
  pronotum. 
  

  

  EMPOASCA 
  FLAVESCENS 
  Fabricius. 
  

  

  Cicada 
  ^fiavescens 
  Faiuucius, 
  Ent. 
  syst., 
  IV, 
  Hafu., 
  1794. 
  — 
  Fallen, 
  Hemiptera 
  

  

  Sueciae, 
  p. 
  53, 
  1829. 
  

   Clilorita 
  Jiavescens 
  Fieber, 
  Kat. 
  ear. 
  Cicad., 
  p. 
  14, 
  1872. 
  — 
  Mayh, 
  Rhyn. 
  Tirol., 
  

  

  II, 
  p. 
  24, 
  1880.— 
  PrTOX, 
  Cat. 
  d. 
  Hemip., 
  p. 
  87, 
  1886.— 
  Melicuar, 
  Cicadinen 
  

  

  von 
  Mittel-europa, 
  p. 
  326, 
  1896. 
  

  

  Not 
  having 
  Fabricius's 
  writings, 
  I 
  give 
  the 
  description 
  of 
  this 
  si)ecies 
  

  

  as 
  quoted 
  by 
  Fallen 
  in 
  ^'Hemiptera 
  Sueciae:" 
  

  

  Mas. 
  & 
  Fern, 
  colore 
  similes. 
  In 
  gramine 
  mense 
  Jul. 
  tt 
  Aug. 
  frequens. 
  In 
  fruticibus 
  

   frequentior. 
  Parva 
  tfc 
  augustata, 
  flavissinui. 
  Oculi 
  fusci. 
  Scutellum 
  ad 
  certuui 
  

  

  that 
  I 
  am 
  nuable 
  to 
  separate 
  from 
  specimens 
  of 
  E. 
  mali 
  from 
  the 
  United 
  States. 
  

   Berg"s 
  description 
  is 
  as 
  follows: 
  

  

  " 
  (? 
  et 
  $ 
  : 
  Laete 
  virescenti-aurantiaca, 
  maculis 
  duabus 
  auticis 
  capitis, 
  tibiis 
  apicem 
  

   versus 
  tarsisque 
  plus 
  minusve 
  viridibus; 
  ant 
  virescenti-liavi, 
  vitta 
  media 
  verticis, 
  

   liueolis 
  lateralibus 
  aut 
  maculis 
  plurimis 
  jjarvis 
  disci 
  frontis, 
  maculis 
  sex 
  velocto 
  

   prope 
  marginem 
  anticum 
  prouoti, 
  vittis 
  duabus 
  vel 
  quattuor 
  partis 
  auticae 
  macu 
  

   lisque 
  tribus 
  triaugularibus 
  segmentornni 
  abdominis 
  rarissiuie 
  obsolete 
  viridi- 
  

   maculato 
  aut 
  fasciato; 
  capite 
  antice 
  subrotundato; 
  ocellis 
  distinctis, 
  viridibus 
  aat 
  

   glaucis; 
  fronte 
  sat 
  magna 
  et 
  couvexa; 
  proaoto 
  margine 
  postico 
  late 
  sinuato; 
  scu- 
  

   tello 
  apice 
  acuto; 
  tegminibus 
  areolis 
  apicalibus 
  tribus 
  vel 
  quattuor 
  instrnctis, 
  clavo 
  

   venis 
  destituo; 
  alis 
  albido-hyalinis. 
  — 
  Long. 
  corp. 
  cum 
  tegm. 
  2^-3; 
  lat. 
  ijrou. 
  l-i- 
  mm. 
  

  

  "I'atria 
  : 
  Corrientes. 
  "' 
  

  

  