﻿AMERICAN 
  TTPHLOCYBINAE— 
  GILLETTE. 
  

  

  Ill 
  

  

  Described 
  from 
  one 
  male 
  sent 
  from 
  the 
  Illinois 
  State 
  Laboratory 
  of 
  

   Natural 
  History. 
  This 
  is 
  a 
  very 
  beautiful 
  sijecies, 
  ami 
  quite 
  unlike 
  any 
  

   other 
  that 
  I 
  have 
  seen 
  in 
  its 
  coloration. 
  

  

  riG. 
  16.— 
  Y 
  E 
  R 
  

   TEX 
  AND 
  PKO" 
  

   NOTCJI 
  OF 
  DI_" 
  

   C 
  R 
  A 
  N 
  E 
  C 
  R 
  A 
  

   CRUEXTATA. 
  

  

  DICRANEURA 
  CRUENTATA, 
  new 
  species. 
  

  

  Color 
  very 
  pale 
  yellow, 
  with 
  pronotum, 
  scutellum, 
  and 
  elytra 
  marked 
  

   with 
  sanguineous. 
  Length, 
  2.75 
  mm. 
  

  

  Face 
  pale 
  yellow, 
  without 
  markings, 
  sutures 
  rather 
  indistinct, 
  antennae 
  

   concolorous 
  with 
  the 
  face. 
  Vertex 
  of 
  the 
  same 
  color 
  as 
  

   the 
  face, 
  except 
  that 
  it 
  is 
  usually 
  darker 
  and 
  may 
  or 
  may 
  

   not 
  have 
  a 
  sanguineous 
  blotch 
  on 
  the 
  middle, 
  consider- 
  

   ably 
  produced, 
  apex 
  moderately 
  rounded, 
  the 
  angle 
  some- 
  

   what 
  less 
  than 
  a 
  right 
  angle. 
  Pronotum 
  three-fourths 
  

   broader 
  than 
  long, 
  less 
  than 
  once 
  and 
  a 
  half 
  the 
  length 
  

   of 
  the 
  vertex, 
  a 
  little 
  concave 
  posteriorly, 
  with 
  a 
  san- 
  

   guineous 
  line 
  on 
  either 
  side 
  extending 
  from 
  the 
  inner 
  

   angle 
  of 
  the 
  eye 
  in 
  a 
  straight 
  line 
  to 
  the 
  basal 
  angle 
  of 
  the 
  scutel- 
  

   lum, 
  leaving 
  the 
  lateral 
  margins 
  and 
  a 
  large 
  rectangular 
  area 
  on 
  the 
  

   disk 
  pale 
  yellow. 
  Scutellum 
  entirely 
  sanguineous. 
  Elytra 
  pale 
  yellow, 
  

   translucent, 
  with 
  a 
  bright 
  red 
  dash 
  of 
  greater 
  or 
  less 
  extent 
  on 
  the 
  

   clavus, 
  and 
  another 
  along 
  the 
  inner 
  sector 
  on 
  the 
  corium, 
  beginning 
  at 
  

   about 
  the 
  middle 
  of 
  the 
  wing 
  and 
  extending 
  nearly 
  or 
  quite 
  to 
  the 
  

   cross 
  veins. 
  Yenation 
  of 
  elytron 
  very 
  similar 
  to 
  that 
  of 
  maculatus 
  as 
  

   seen 
  in 
  the 
  illustration. 
  There 
  is 
  also 
  a 
  more 
  or 
  less 
  intense 
  smoky 
  

   decoloration 
  of 
  the 
  elytron 
  in 
  the 
  region 
  of 
  the 
  cross 
  veins. 
  Tergum 
  

  

  and 
  venter 
  pale 
  yellow, 
  feet 
  

   whitish. 
  

  

  The 
  sanguineous 
  m 
  a 
  r 
  k 
  i 
  n 
  g 
  s 
  

   vary 
  from 
  bright 
  blood 
  red 
  to 
  

   very 
  pale, 
  and 
  in 
  some 
  specimens 
  

   they 
  are 
  entirely 
  wanting. 
  The 
  

   red 
  dashes 
  on 
  the 
  elytra 
  are 
  

   present 
  in 
  most 
  of 
  the 
  specimens 
  

   I 
  have 
  seen. 
  (See 
  Figs. 
  16, 
  

   17, 
  18.) 
  

  

  Type.—^o. 
  3413, 
  U.S.X.M. 
  

   Described 
  from 
  lifteen 
  speci- 
  

   mens 
  from 
  Cornell 
  University, 
  

   marked 
  "Ithaca, 
  N. 
  Y., 
  Aug. 
  28, 
  '94," 
  one 
  specimen 
  from 
  Mr. 
  Clermont 
  

   Livingston, 
  taken 
  on 
  Alder, 
  at 
  Corfield, 
  Yancouver 
  Island, 
  and 
  nine 
  

   specimens 
  taken 
  by 
  myself 
  among 
  dry 
  leaves 
  in 
  the 
  foothills 
  near 
  Fort 
  

   Collins, 
  Colorado, 
  April 
  9. 
  :N^one 
  of 
  the 
  specimens 
  from 
  the 
  foot-hills 
  

   show 
  red 
  markings 
  on 
  pronotum 
  or 
  scutellum 
  and 
  only 
  about 
  half 
  have 
  

   the 
  red 
  dashes 
  on 
  the 
  elytra. 
  The 
  smoky 
  coloration 
  upon 
  the 
  two 
  outer 
  

   sectors 
  of 
  the 
  elytron 
  just 
  before 
  the 
  cross-nervures 
  and 
  upon 
  the 
  inner 
  

   cross-nervure 
  is 
  perfectly 
  constant 
  in 
  the 
  above 
  mentioned 
  specimens. 
  

  

  Figs. 
  17 
  and 
  18. 
  — 
  Elytron 
  and 
  wing 
  of 
  dicraxeur 
  a 
  

  

  CRUENTATA. 
  

  

  