﻿AMEBIC 
  AX 
  TTPHLOCYBINAE— 
  GILLETTE. 
  

  

  715 
  

  

  sevenths 
  times 
  the 
  length, 
  and 
  its 
  length 
  just 
  twice 
  the 
  length 
  of 
  the 
  

   vertex; 
  posterioi' 
  margin 
  a 
  little 
  concave. 
  Scutellum 
  nsually 
  a 
  little 
  

   darker 
  than 
  the 
  pronotum, 
  the 
  transverse 
  groove 
  black; 
  elytra 
  deep 
  

   smoky 
  to 
  blackish, 
  the 
  color 
  deepest 
  on 
  clavus 
  and 
  

   near 
  the 
  tips. 
  Tergum, 
  smoky 
  brown, 
  with 
  the 
  apical 
  

   margins 
  of 
  the 
  segments 
  yellowish; 
  ovipositor, 
  yellow- 
  

   ish; 
  sheaths, 
  smoky 
  brown; 
  venter, 
  yellow; 
  pygofers, 
  

   infuscated. 
  Legs 
  yellow 
  throughout 
  with 
  claws 
  blackish. 
  

  

  Typc.—^o. 
  3411, 
  U.S.N.M. 
  

  

  Described 
  from 
  four 
  females 
  and 
  one 
  male, 
  all 
  

   from 
  Cornell 
  University 
  and 
  labeled 
  *' 
  Ithaca, 
  K. 
  Y., 
  

  

  July 
  31, 
  '94 
  

  

  Fir;. 
  30.— 
  Vertex 
  

  

  AND 
  PROXOTL'.M 
  OP 
  

   ALEBIIA 
  FTMIDA. 
  

  

  :See 
  Figs. 
  

   10,11,12.) 
  I 
  do 
  not 
  feel 
  at 
  

   all 
  certain 
  that 
  the 
  above 
  

   may 
  not 
  prove 
  tobeauother 
  

   of 
  the 
  many 
  varieties 
  of 
  

   alhostriella 
  when 
  a 
  larger 
  

   series 
  of 
  this 
  species 
  has 
  

   been 
  studied, 
  as 
  the 
  ])rin- 
  

   cipal 
  dift'ereuces 
  seem 
  to 
  

   be 
  in 
  coloration. 
  

  

  Genus 
  DICRANEURA 
  

   Hardy. 
  

  

  Only 
  two 
  American 
  s])e- 
  

   cies 
  in 
  this 
  genus 
  have 
  

   been 
  reported 
  up 
  to 
  the 
  present 
  time. 
  From 
  the 
  material 
  in 
  hand. 
  I 
  

   am 
  able 
  to 
  recognize 
  a 
  good 
  number 
  of 
  both 
  of 
  these 
  and 
  to 
  add 
  eight 
  

   others, 
  seven 
  of 
  whi(;h 
  are 
  new. 
  

  

  Figs. 
  U 
  and 
  12.— 
  Elytron 
  axd 
  wixg 
  of 
  alehra 
  fljuda. 
  

  

  ANALYTICAL 
  KEY 
  TO 
  THE 
  AMEUICAX 
  .SPECIES 
  OF 
  THE 
  GENIS 
  DICKANEURA. 
  

  

  A. 
  Elytra 
  with 
  a 
  deep 
  triangular 
  apical 
  cell 
  oii 
  costal 
  margin. 
  

  

  B. 
  Elytra 
  covered 
  with 
  red 
  spots 
  of 
  varying 
  .size 
  maciilata. 
  

  

  BB. 
  Elytra 
  whitish, 
  imicolorous, 
  or 
  with 
  two 
  lougitudiual 
  sauguineous 
  lines 
  on 
  

  

  each, 
  without 
  black 
  spot 
  cruentatus. 
  

  

  BBB. 
  Elytra 
  with 
  orange 
  markings 
  and 
  wirh 
  a 
  black 
  spot 
  in 
  the 
  middle 
  aj)ical 
  

  

  cell 
  itnipnncta. 
  

  

  BBBB. 
  Elytra 
  largely 
  colored 
  with 
  red 
  and 
  with 
  a 
  black 
  .spot 
  in 
  the 
  inner 
  apical 
  

  

  cell 
  4-cittata. 
  

  

  AA. 
  Elytra 
  with 
  apical 
  cell 
  on 
  costal 
  margin 
  lanceolate 
  or 
  wanting. 
  

  

  B. 
  Elytra 
  milky 
  white, 
  nervures 
  indistinct 
  coin 
  mini 
  is. 
  

  

  BB. 
  Elytra 
  yellowish 
  or 
  pinkish. 
  

  

  C. 
  Vertex 
  and 
  pronotum 
  with 
  two 
  reddish 
  lougitudiual 
  lines; 
  very 
  slftnder 
  

  

  species 
  with 
  strongly 
  produced 
  vertex: 
  abnonnis. 
  

  

  CC. 
  Vertex 
  and 
  pronotum 
  Avithout 
  red 
  linos. 
  

  

  D. 
  Elytra 
  with 
  large 
  median 
  red 
  spot 
  or 
  band 
  cochereUii. 
  

  

  DD. 
  Elytra 
  without 
  transverse 
  red 
  markings. 
  

  

  E. 
  Length 
  under 
  3 
  mm 
  Innzei. 
  

  

  EE. 
  Length 
  3 
  mm. 
  or 
  more. 
  

  

  F. 
  Venter 
  > 
  ellow 
  fichiri. 
  

  

  FF. 
  Venter 
  nearlv 
  or 
  entirely 
  l)lack 
  curiieola. 
  

  

  