﻿716 
  

  

  PItOCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM. 
  

  

  DICRANEURA 
  MACULATA, 
  new 
  species. 
  

  

  Ground 
  color 
  very 
  pale 
  yellow, 
  almost 
  white, 
  spotted 
  above 
  on 
  ver- 
  

   tex, 
  pronotum, 
  sciitellum, 
  and 
  elytra 
  with 
  red, 
  and 
  on 
  the 
  face 
  with 
  

   blackish. 
  Length, 
  3 
  mm. 
  

  

  Vertex 
  strongly 
  produced, 
  almost 
  acute 
  at 
  apex, 
  the 
  angle 
  slightly 
  

   less 
  than 
  a 
  right 
  angle; 
  a 
  transverse 
  red 
  line 
  on 
  the 
  extreme 
  apex, 
  aiid 
  

   a 
  broad 
  red 
  baud 
  beginning 
  at 
  either 
  eye 
  extends 
  to 
  near 
  the 
  middle 
  

   line 
  on 
  either 
  side, 
  and 
  then 
  is 
  deflected 
  back 
  to 
  the 
  posterior 
  margin, 
  

   where 
  the 
  two 
  halves 
  coalesce. 
  Face 
  pale 
  yellow; 
  a 
  red 
  line 
  starting 
  

   at 
  either 
  eye 
  runs 
  above 
  the 
  antennae 
  and 
  then 
  is 
  bent 
  upward, 
  meet- 
  

   ing 
  its 
  mate 
  at 
  an 
  acute 
  point 
  a 
  little 
  below 
  the 
  margin 
  of 
  the 
  vertex; 
  

   above 
  this 
  line 
  and 
  on 
  a 
  level 
  with 
  its 
  highest 
  point 
  on 
  either 
  side 
  of 
  

   the 
  front 
  is 
  a 
  dark 
  dot, 
  and 
  there 
  is 
  a 
  row 
  of 
  about 
  seven 
  transverse 
  

   dark 
  dashes 
  on 
  either 
  side 
  of 
  the 
  front 
  below 
  the 
  red 
  line, 
  and 
  also 
  a 
  

   conspicuous 
  dark 
  spot 
  on 
  the 
  geua 
  below 
  the 
  compound 
  eye 
  on 
  either 
  

   side. 
  The 
  pronotum 
  has 
  a 
  broad 
  red 
  band 
  which 
  starts 
  on 
  

   its 
  inferior 
  surface, 
  extends 
  over 
  the 
  lateral 
  margin 
  onto 
  

   the 
  superior 
  surface, 
  attains 
  or 
  nearly 
  attains 
  the 
  anterior 
  

   margin 
  at 
  the 
  inner 
  angle 
  of 
  the 
  eye, 
  and 
  then 
  is 
  bent 
  back 
  

   to 
  near 
  the 
  posterior 
  margin, 
  when 
  it 
  

   crosses 
  the 
  middle 
  line 
  of 
  the 
  prono- 
  

   tum, 
  so 
  that 
  the 
  posterior 
  margin 
  and 
  

   a 
  large 
  biOtcli 
  on 
  the 
  middle 
  anterior- 
  

   ly 
  are 
  whitish 
  without 
  red 
  markings. 
  

   The 
  scutellnm 
  is 
  slightly 
  washed 
  with 
  

   a 
  pinkish 
  coloration, 
  and 
  the 
  tip 
  is 
  

   red. 
  On 
  the 
  clavus 
  of 
  the 
  elytra 
  are 
  

   four 
  red 
  blotches 
  in 
  a 
  line, 
  the 
  largest 
  

   being 
  near 
  the 
  base 
  and 
  the 
  smallest 
  

   at 
  the 
  extreme 
  tip; 
  there 
  are 
  also 
  a 
  

   few 
  small 
  red 
  dots 
  along 
  the 
  claval 
  suture 
  anteriorly; 
  on 
  the 
  coriuin 
  

   are 
  about 
  four 
  Inrge 
  red 
  spots 
  and 
  numerous 
  minute 
  red 
  dots. 
  The 
  

   red 
  spots 
  are, 
  one 
  close 
  to 
  the 
  base 
  of 
  the 
  wing 
  and 
  not 
  very 
  large, 
  

   a 
  large 
  elongate 
  spot 
  back 
  of 
  it 
  extending 
  toward 
  the 
  third 
  spot 
  on 
  the 
  

   clavus, 
  another 
  on 
  the 
  middle 
  of 
  the 
  coriura 
  just 
  anterior 
  to 
  the 
  spot 
  

   at 
  the 
  ti]) 
  of 
  the 
  clavus, 
  and 
  a 
  fourth 
  on 
  the 
  middle 
  of 
  the 
  costal 
  mar- 
  

   gin. 
  The 
  red 
  dots 
  are 
  scattered 
  almost 
  the 
  entire 
  length 
  of 
  the 
  corium, 
  

   but 
  are 
  most 
  abundant 
  in 
  the 
  region 
  of 
  the 
  cross 
  nervures. 
  The 
  cross 
  

   nervures 
  run 
  very 
  diagonally 
  from 
  the 
  tip 
  of 
  the 
  clavus 
  toward 
  the 
  tip 
  

   of 
  the 
  elytron, 
  the 
  hrst 
  apical 
  cell 
  on 
  the 
  costal 
  margin 
  being 
  short 
  aiul 
  

   triangular 
  and 
  coming 
  far 
  short 
  of 
  the 
  apex 
  of 
  the 
  elytron. 
  In 
  the 
  

   wing 
  the 
  second 
  inclosed 
  apical 
  cell 
  is 
  unusually 
  smnll. 
  Feet 
  very 
  pale 
  

   yellow; 
  tips 
  of 
  tarsi 
  and 
  spots 
  at 
  the 
  base 
  of 
  tlie 
  postericn- 
  tibial 
  spines 
  

   blackish. 
  (See 
  Figs. 
  13, 
  1 
  4, 
  ir..) 
  

   Typc—^o. 
  3412, 
  U.S.N. 
  M. 
  

  

  Fios. 
  i:i, 
  14 
  and 
  15.— 
  Vertex 
  and 
  pronotum, 
  

  

  ELYTRON, 
  AND 
  WING 
  OF 
  DICRANEURA 
  MACU- 
  

   LATA. 
  

  

  