﻿NO. 
  1138. 
  

  

  AMERICAN 
  TYPHLOCYBINAE— 
  GILLETTE. 
  

  

  733 
  

  

  female 
  considerably 
  produced 
  posteriorly 
  and 
  entire. 
  Legs 
  yellowish 
  

   to 
  greenish, 
  the 
  tips 
  of 
  the 
  tibiae 
  and 
  the 
  tarsi 
  always 
  bluish-green. 
  

   (See 
  Figs. 
  Gl, 
  62.) 
  

  

  Type.—^o. 
  3425, 
  U.S.l!^.M. 
  

  

  Described 
  from 
  numerous 
  specimens 
  from 
  the 
  Illinois 
  State 
  Labora- 
  

   tory 
  of 
  Natural 
  History; 
  from 
  Th. 
  Pergaude, 
  taken 
  iu 
  Virginia; 
  from 
  

   Professor 
  W. 
  A. 
  Snow, 
  taken 
  at 
  electric 
  light 
  in 
  Douglass 
  County, 
  

   Kansas. 
  The 
  Illinois 
  specimens 
  bear 
  numbers 
  185!2(), 
  18526. 
  and 
  18190. 
  

   Mr. 
  Hart 
  writes 
  me 
  that 
  those 
  

   of 
  the 
  last 
  number 
  were 
  

   taken 
  on 
  willow. 
  

  

  EMPOASCA 
  OBTUSA 
  Walsh. 
  

  

  Empoasca 
  obttisa 
  \Yalsh, 
  Proc. 
  

   Bost. 
  Soc. 
  Nat. 
  Hist., 
  IX, 
  

   p. 
  316, 
  1864.— 
  WooDwoRTH, 
  

   Psyche, 
  V, 
  p. 
  213, 
  1889.— 
  Os- 
  

   BORX, 
  Proc. 
  la. 
  Acad. 
  Sci., 
  I, 
  

   Pt. 
  2, 
  p. 
  12, 
  1892.— 
  Van 
  Du- 
  

   ZEE, 
  Trans. 
  Am. 
  Eiit. 
  Soo., 
  

   XX 
  T, 
  p. 
  310, 
  1894.— 
  Gillette 
  

   & 
  Baker, 
  Bull. 
  31, 
  Colo. 
  Exp. 
  

   St., 
  p. 
  110, 
  1895. 
  

  

  Figs. 
  61 
  and 
  62. 
  

  

  -Elytron 
  and 
  •\vixg 
  of 
  e.mpoa.sca 
  

   albolinea. 
  

  

  Walsh's 
  description 
  is 
  as 
  

   follows: 
  

  

  Pale 
  gra8.s-green. 
  Front 
  of 
  head 
  forming 
  a 
  very 
  obtuse 
  angle, 
  with 
  the 
  apex 
  

   rounded 
  off. 
  Each 
  ocellus 
  surrounded 
  Ijy 
  a 
  fuscous 
  spot. 
  Eyes 
  and 
  tips 
  of 
  tarsal 
  

   joints 
  fuscous 
  ; 
  elytra 
  greenish 
  subhyaliue 
  ; 
  tips 
  hyaline. 
  Triaugular 
  cell 
  peduncled. 
  

   Wiugs 
  hyaline. 
  Length 
  to 
  tip 
  of 
  wings 
  three-sixteenths 
  of 
  an 
  iuch. 
  

  

  The 
  above 
  description 
  is 
  too 
  meager 
  to 
  

   separate 
  this 
  species 
  from 
  aureoviridis 
  Uhler. 
  

   The 
  .specimens 
  of 
  the 
  latter 
  species 
  that 
  I 
  

   have 
  examined 
  are 
  more 
  robust 
  than 
  those 
  of 
  

   ohtusa; 
  the 
  vertex 
  also 
  is 
  evenly 
  rounded, 
  not 
  

   at 
  all 
  produced, 
  and 
  in 
  the 
  females 
  the 
  last 
  

   ventral 
  segment 
  is 
  j)roduced 
  and 
  sinuate 
  at 
  

   the 
  sides, 
  ^posteriorly, 
  as 
  shown 
  in 
  Figs. 
  57, 
  

   57a. 
  In 
  obtusa 
  the 
  length 
  hardly 
  exceeds 
  i 
  

   mm. 
  the 
  vertex 
  is 
  distinctly, 
  but 
  not 
  strongly 
  produced, 
  and 
  the 
  last 
  

   ventral 
  segment 
  is 
  produced 
  and 
  entire 
  at 
  the 
  sides 
  posteriorly. 
  (See 
  

   Figs. 
  63 
  and 
  63a.) 
  

  

  I 
  have 
  received 
  specimens 
  from 
  Illinois 
  State 
  Laboratory 
  of 
  Xatural 
  

   History 
  taken 
  near 
  Champaign, 
  Illinois, 
  and 
  numbered 
  18520 
  and 
  

   18590, 
  those 
  of 
  the 
  latter 
  number 
  being 
  from 
  willow; 
  from 
  Mr. 
  0. 
  A. 
  

   Hart, 
  specimens 
  taken 
  near 
  Champaign, 
  Illinois, 
  and 
  numbered 
  oil, 
  547 
  

   and 
  553; 
  from 
  Mr. 
  Otto 
  Heidemann, 
  labeled 
  "Washington, 
  D. 
  C. 
  ;" 
  

   and 
  from 
  the 
  U, 
  S. 
  National 
  Museum 
  labeled, 
  " 
  la., 
  Gillette." 
  

  

  63,( 
  

   Figs. 
  63 
  and 
  6:i«.— 
  Vertex 
  and 
  

  

  PRONOTIM, 
  AND 
  LAST 
  VENTRAL 
  

   SEGMENT 
  OF 
  FEMALE 
  OP 
  EMPO- 
  

   ASCA 
  OBTUSA. 
  

  

  