﻿718 
  

  

  PROCEEDIXGS 
  OF 
  THE 
  XATIOXAL 
  MUSEUM. 
  

  

  DICRANEURA 
  UNIPUNCTA, 
  new 
  species. 
  

  

  Color 
  yellow, 
  inarkod 
  with 
  fuscous 
  and 
  oraiigi^ 
  above. 
  Length, 
  

   .').L*5 
  luni. 
  

  

  Face 
  about 
  one-fifth 
  longer 
  than 
  broad, 
  quite 
  narrow 
  below, 
  clypeus 
  

   very 
  narrow, 
  general 
  color 
  uniform 
  light 
  to 
  sordid 
  yellow. 
  Vertex 
  

   moderately 
  produced, 
  its 
  angle 
  a 
  right 
  angle, 
  fully 
  two-thirds 
  as 
  long 
  

   as 
  the 
  pronotuni, 
  the 
  width 
  of 
  the 
  head 
  hardly 
  two 
  and 
  one-half 
  times 
  

   tlie 
  length 
  of 
  the 
  vertex, 
  with 
  or 
  without 
  two 
  longitudinal 
  orange-col- 
  

   ored 
  stripes. 
  Pronotum 
  slightly 
  less 
  than 
  twice 
  as 
  wide 
  as 
  long, 
  pale 
  

   yellow 
  in 
  color, 
  and 
  with 
  or 
  without 
  four 
  narrow 
  longitudinal 
  orange 
  

   lines 
  above. 
  These 
  lines 
  are 
  sharply 
  defined 
  in 
  two 
  specimens, 
  but 
  in 
  

   the 
  others 
  they 
  are 
  faint 
  or 
  entirely 
  wanting. 
  Scutellum 
  jiale 
  yellow 
  

   with 
  the 
  basal 
  angles 
  rufous, 
  or, 
  in 
  one 
  specimen, 
  almost 
  

   entirely 
  rufous. 
  Elytra 
  pale 
  yellow, 
  a 
  largo 
  round 
  orange 
  

   spot 
  near 
  the 
  inner 
  basal 
  angle, 
  another 
  semicircular 
  s])ot 
  

   on 
  the 
  middle 
  of 
  the 
  inner 
  margin 
  of 
  the 
  clavus. 
  making 
  

   a 
  nearly 
  circular 
  spot 
  with 
  its 
  mate, 
  and 
  a 
  long 
  orange- 
  

   colored 
  line 
  just 
  outside 
  the 
  

   clavus 
  and 
  extending 
  from 
  

   near 
  the 
  base 
  of 
  the 
  clavus 
  to 
  

   its 
  til): 
  the 
  apical 
  nervures 
  

   are 
  lemon-colored 
  bordered 
  

   with 
  smoky, 
  and 
  near 
  the 
  cen- 
  

   ter 
  of 
  the 
  middle 
  apical 
  cell 
  is 
  

   a 
  black 
  spot 
  which 
  is 
  very 
  con- 
  

   spicuous. 
  For 
  the 
  venation 
  

   see 
  Fig. 
  20. 
  In 
  one 
  specimen 
  

   the 
  orange-colored 
  spots 
  on 
  the 
  

   Fiiis, 
  19, 
  20, 
  and 
  21.— 
  Vertex 
  and 
  pronotum, 
  elytron, 
  clavus 
  liavc 
  ruu 
  together 
  and 
  

  

  AND 
  WING 
  OF 
  DICRANEURA 
  UNIPUNCTA. 
  ry\\ 
  ^1,^ 
  oraUgC 
  COloratlOU 
  IS 
  

  

  weak 
  and 
  obscured 
  Avith 
  fuscous. 
  Abdomen 
  in 
  the 
  females 
  golden 
  yel- 
  

   low 
  above 
  and 
  below, 
  in 
  a 
  single 
  male, 
  entirely 
  dark 
  smoky 
  except 
  the 
  

   tips 
  of 
  the 
  segments 
  and 
  at 
  the 
  sides. 
  Feet 
  uniform 
  pale 
  yellow. 
  (See 
  

   Figs. 
  10, 
  20,21.) 
  

  

  Type.—^o. 
  3414, 
  U.S.N.M. 
  

  

  Described 
  from 
  three 
  females 
  and 
  one 
  male 
  from 
  the 
  United 
  States 
  

   National 
  Museum, 
  one 
  of 
  which 
  is 
  labeled 
  ''Coquillett, 
  Collector, 
  Calif., 
  

   through 
  C. 
  V. 
  Riley," 
  and 
  three 
  are 
  labeled 
  " 
  Coquillett, 
  Los 
  Angeles, 
  

   Calif." 
  

  

  DICRANEURA 
  COMMUNIS, 
  new 
  species. 
  

  

  Sordid 
  millty 
  white, 
  pronotun 
  vertex 
  and 
  scutellum 
  slightly 
  yellow- 
  

   ish, 
  without 
  distinct 
  markings 
  above. 
  Length, 
  3.75 
  mm. 
  

  

  F^ace 
  very 
  pale 
  sordid 
  yellowish, 
  nnicolorous, 
  entire 
  front 
  hardly 
  

   longer 
  than 
  broad; 
  clypeus 
  a 
  little 
  more 
  than 
  one-third 
  the 
  length 
  of 
  

   the 
  froni:, 
  broadest 
  below 
  the 
  middle, 
  somewhat 
  constricted 
  near 
  the 
  

   base, 
  rounded 
  at 
  the 
  apex,- 
  lorae 
  as 
  long 
  as 
  the 
  clypeus 
  and 
  as 
  broad 
  as 
  

  

  