﻿NO. 
  1138. 
  

  

  AMEliICA 
  y 
  TYPHLOCYBINAE— 
  GILLETTE. 
  

  

  747 
  

  

  the 
  elytra 
  and, 
  possibly, 
  the 
  more 
  distinct 
  white 
  spots 
  upon 
  the 
  pro- 
  

   notum 
  are 
  all 
  that 
  I 
  find 
  to 
  separate 
  it 
  from 
  the 
  typical 
  form, 
  and 
  these 
  

   markings 
  are 
  often 
  very 
  indistinct. 
  

  

  EMPOASCA 
  VIRIDESCENS 
  Walsh. 
  

  

  Empomca 
  viridcsceiis 
  Walsh, 
  Proc. 
  Bost. 
  Soc. 
  Nat. 
  Hist., 
  IX, 
  p. 
  316, 
  18(i4. 
  — 
  Wood- 
  

   worth, 
  Psyche, 
  V, 
  p. 
  213, 
  1889.— 
  Vax 
  Duzer, 
  Trans. 
  Am. 
  Eut. 
  Soc. 
  XXI, 
  

   p. 
  309, 
  1894. 
  

  

  Empoasra 
  consobritui 
  Walsh, 
  Proc. 
  Bo.'^t. 
  Soc. 
  Nat. 
  Hist., 
  IX, 
  p. 
  316, 
  1864. 
  — 
  Wood- 
  

   AVORTH, 
  Psyche, 
  V, 
  p. 
  213, 
  1889.— 
  Van 
  Duzee, 
  Trans. 
  Am. 
  Ent. 
  Soc, 
  XXI, 
  

   p. 
  310, 
  1894. 
  

  

  Walsli's 
  brief 
  description 
  of 
  riridescens 
  is 
  as 
  follows: 
  

  

  Pale 
  greenish; 
  front 
  of 
  the 
  head 
  forming 
  a 
  right 
  angle 
  with 
  the 
  apex 
  rounded 
  off; 
  

   eyes 
  and 
  tips 
  of 
  tarsi 
  fuscous; 
  elytra 
  suhhyaliue, 
  with 
  a 
  faint 
  greenish 
  tinge, 
  the 
  

   triangular 
  cell 
  not 
  pedunculated 
  as 
  it 
  is 
  in 
  Eig. 
  V; 
  wings 
  hyaline. 
  

  

  I 
  met 
  with 
  both 
  sexes 
  in 
  southern 
  Illinois. 
  A 
  single 
  female, 
  which 
  

   occurred 
  at 
  Rock 
  Island, 
  Illinois, 
  varies 
  in 
  being 
  more 
  yellowish 
  than 
  

   greenish, 
  and 
  in 
  the 
  tips 
  of 
  the 
  ovipositor 
  being 
  fuscous. 
  Length 
  

   to 
  the 
  tips 
  of 
  the 
  wings 
  not 
  quite 
  an 
  eighth 
  of 
  an 
  inch. 
  

  

  Consohrina 
  was 
  described 
  at 
  the 
  same 
  time 
  as 
  follows: 
  

  

  Differing 
  from 
  the 
  preceding 
  only 
  

   in 
  being 
  sometimes 
  yellowish, 
  and 
  in 
  

   the 
  triangular 
  cell 
  in 
  the 
  elytra 
  being 
  

   always 
  pedunculated. 
  Seven 
  speci- 
  

   mens, 
  taken 
  at 
  one 
  time 
  at 
  Rock 
  

   Island, 
  Illinois, 
  all 
  agree 
  in 
  this 
  par- 
  

   ticular. 
  Length 
  slightly 
  over 
  one- 
  

   eighth 
  of 
  an 
  inch. 
  (This 
  is 
  a 
  mere 
  

   variety 
  of 
  the 
  preceding. 
  I 
  have 
  

   noAv 
  all 
  the 
  intermediate 
  grades.) 
  

  

  Although 
  it 
  is 
  impossible 
  

   from 
  the 
  above 
  descriptions 
  to 
  

   identify 
  this 
  species 
  with 
  cer- 
  

   tainty, 
  I 
  have 
  two 
  specimens 
  

   of 
  what 
  r 
  believe 
  to 
  be 
  this 
  species 
  from 
  Doctor 
  Forbes, 
  which 
  were 
  

   taken 
  in 
  August 
  and 
  Sei)tember 
  at 
  Champaign, 
  Illinois, 
  In 
  one, 
  the 
  

   triangnlar 
  cell 
  of 
  the 
  wing 
  is 
  pedunculate 
  and 
  in 
  the 
  other 
  it 
  is 
  not. 
  

   I 
  also 
  have 
  a 
  considerable 
  number 
  of 
  specimens 
  from 
  Agricultural 
  

   College, 
  Mississippi, 
  sent 
  me 
  by 
  Professor 
  H. 
  E. 
  Weed, 
  and 
  others 
  

   from 
  Ithaca, 
  New 
  York, 
  sent 
  me 
  from 
  Cornell 
  University. 
  The 
  speci- 
  

   mens 
  that 
  I 
  have 
  determined 
  as 
  this 
  species 
  may 
  be 
  described 
  as 
  

   follows: 
  

  

  Color 
  pale 
  green 
  with 
  thorax, 
  vertex 
  and 
  body 
  beneath 
  yellowish. 
  

   Length 
  slightly 
  over 
  3 
  mm. 
  

  

  The 
  face 
  is 
  about 
  one-third 
  longer 
  than 
  broad, 
  front, 
  above 
  the 
  clyp- 
  

   ens, 
  almost 
  exactly 
  twice 
  the 
  length 
  <»f 
  the 
  clyi^eus. 
  The 
  clyi)eus 
  is 
  

   large, 
  pointed 
  below, 
  broadly 
  constricted 
  at 
  the 
  sides 
  near 
  the 
  base, 
  and 
  

   exceeds 
  the 
  genae 
  somewhat. 
  The 
  vertex 
  is 
  considerably 
  produced 
  and 
  

   is 
  three-fifths 
  the 
  length 
  of 
  the 
  pronotum; 
  width 
  of 
  the 
  head 
  nearly 
  

  

  Figs. 
  95. 
  90, 
  iiiul 
  97.— 
  Vertkx 
  and 
  proxotum, 
  elytron, 
  

   axd 
  wtnc; 
  of 
  e.mpoasca 
  viridescexs. 
  

  

  