﻿AMEBIC 
  JX 
  TYJ'HLOCYBINA 
  E—GILLE 
  TIE. 
  

  

  769 
  

  

  TYPHLOCYBA 
  ULMI 
  Linnaeus. 
  

  

  Cicada 
  uhni 
  LiXN,i;us, 
  Fauna 
  Suecica, 
  p. 
  900, 
  1761. 
  — 
  De 
  Geeu, 
  Abli. 
  x. 
  Gescli. 
  

  

  d. 
  Ins. 
  etc., 
  p. 
  189, 
  1780.— 
  Fabricius 
  Ent. 
  Syst., 
  1803.— 
  Fallen, 
  Heniiptera 
  

  

  SueciiT, 
  Cicadaria;, 
  p. 
  49, 
  1829. 
  

   Anomia 
  iilmi 
  Vikber, 
  Kat. 
  d. 
  eur. 
  Cicad., 
  p. 
  15, 
  1872. 
  

   Tiiphloctjha 
  ulmi 
  PuTON, 
  Cat. 
  d. 
  Hemip., 
  p. 
  88, 
  1886 
  — 
  Melichar, 
  CLc. 
  v. 
  Mittel- 
  

  

  europa. 
  p. 
  348, 
  1896. 
  

  

  I 
  do 
  not 
  possess 
  the 
  original 
  description 
  of 
  this 
  s])ecies, 
  my 
  speci- 
  

   mens 
  being- 
  determined 
  by 
  comparison 
  with 
  European 
  specimens 
  loaned 
  

   me 
  by 
  Mr. 
  E. 
  P. 
  Van 
  Duzee, 
  and 
  others 
  obtained 
  in 
  exchange 
  from 
  

   Doctor 
  L. 
  Melichar, 
  of 
  Vienna. 
  

  

  The 
  species 
  may 
  be 
  briefly 
  characterized 
  as 
  follows: 
  

  

  Color 
  yellowish; 
  length 
  3.75 
  mm. 
  ; 
  head 
  rather 
  small, 
  narrower 
  than 
  the 
  pronotum; 
  

   vertex 
  of 
  female 
  with 
  two 
  black 
  dots 
  on 
  the 
  anterior 
  margin; 
  males 
  and 
  females 
  

   with 
  a 
  small 
  black 
  spot 
  on 
  

   the 
  middle 
  of 
  the 
  anterior 
  

   margin, 
  of 
  the 
  pronotum 
  ; 
  ter- 
  

   gum 
  of 
  abdomen 
  black, 
  with 
  

   the 
  hind 
  margins 
  of 
  the 
  seg- 
  

   ments 
  yellow 
  ; 
  venter 
  yellow, 
  

   or 
  yellow 
  and 
  black 
  ; 
  elytra 
  

   somewhat 
  infuscate 
  in 
  the 
  

   region 
  of 
  the 
  cross 
  uervures 
  

   andat 
  their 
  tips; 
  feet 
  yellow. 
  

   (See 
  Figs. 
  140, 
  141.) 
  

  

  I 
  received 
  a 
  good 
  num- 
  

   ber 
  of 
  males 
  and 
  females 
  

   of 
  this 
  species 
  from 
  Doc- 
  

   tor 
  Lintner 
  labeled, 
  "Al- 
  

   bany, 
  N. 
  Y., 
  1880," 
  and 
  

   one 
  specimen 
  labeled 
  "Mass.", 
  also 
  a 
  few 
  examples 
  from 
  Mr. 
  Ball 
  

   labeled 
  "Ames, 
  la., 
  June 
  19." 
  

  

  TYPHLOCYBA 
  COMMISSURALIS 
  Stiil. 
  

  

  Figs. 
  140 
  and 
  141. 
  —Elytron 
  and 
  wino 
  of 
  typhlocyba 
  uljii. 
  

  

  TypMocyla 
  commissuralis 
  Stal, 
  Stett. 
  Ent. 
  Zeit., 
  XIX, 
  p. 
  196, 
  1858. 
  — 
  Woodworth, 
  

   Psyche, 
  Y, 
  p. 
  214, 
  18fl9.— 
  Van 
  Duzee, 
  Trans. 
  Am. 
  Ent. 
  Soc, 
  XXI, 
  p. 
  313, 
  1894. 
  

  

  Kybos 
  commissuraUs 
  Fieber, 
  Kat. 
  d. 
  eur. 
  Cicad., 
  p. 
  14, 
  1872 
  — 
  Prxox, 
  Cat. 
  

   des 
  Hemip.. 
  p. 
  87, 
  1886. 
  

  

  Stal's 
  original 
  description 
  of 
  this 
  species 
  is 
  as 
  follows: 
  

  

  Flavo-albida, 
  capite 
  eerca 
  oculos 
  scutelloque 
  pallide 
  brunnesoentibus, 
  hujus 
  mar- 
  

   ginibns 
  lateralibus 
  termissime 
  veuaque 
  ipsa 
  marginali 
  interna 
  tegminum 
  ultra 
  

   medium 
  nigricantibus 
  ; 
  tegminibus 
  pallidissime 
  tlavescentibus, 
  apice 
  subdecoloribus, 
  

   costa 
  basi 
  fuscescente, 
  areolis 
  apicalibus 
  4 
  triangularibus, 
  lateralibus 
  marginem 
  

   apicalem 
  ipsam 
  hand 
  attingentibus, 
  Ida 
  basi 
  latiuscula, 
  3-tia 
  basi 
  angulum 
  scutum 
  

   formante. 
  <? 
  . 
  Long. 
  4^. 
  Lat. 
  f 
  mm. 
  

  

  T. 
  lineatillse 
  subsimilis. 
  Tegmina 
  areolis 
  apicalibus 
  4 
  instructa, 
  quarum 
  externis 
  

   apicem 
  hand 
  attingentibus, 
  obtriangularibus, 
  basi 
  latis 
  et 
  ibidem 
  utrimque 
  sub- 
  

   ohlique 
  truncayis, 
  secnnda 
  (a 
  commissura) 
  apice 
  omnium 
  latissima, 
  iutus 
  sensim 
  

  

  Proc. 
  i^. 
  M. 
  vol. 
  XX 
  49 
  

  

  