﻿312 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  tol. 
  9e 
  

  

  twice 
  as 
  long 
  as 
  wide, 
  the 
  ocellar 
  triangle 
  is 
  more 
  or 
  less 
  obtuse, 
  and 
  

   the 
  antennae 
  are 
  unicolorous 
  and 
  always 
  pale, 
  while 
  in 
  Pseiidaphycus 
  

   the 
  f 
  rontovertex 
  is 
  nearly 
  always 
  two 
  or 
  more 
  times 
  as 
  long 
  as 
  broad, 
  

   the 
  ocelli 
  are 
  arranged 
  in 
  an 
  equilateral 
  or 
  acute 
  triangle, 
  and 
  the 
  

   antennae 
  are 
  always 
  contrastingly 
  colored 
  with 
  the 
  scape, 
  pedicel, 
  

   and 
  at 
  least 
  some 
  of 
  the 
  funicular 
  segments 
  black 
  or 
  fuscous 
  and 
  the 
  

   club 
  white. 
  

  

  The 
  species 
  of 
  Pseuda'phycus 
  offer 
  very 
  few 
  good 
  characters 
  for 
  

   their 
  separation. 
  Slight 
  differences 
  in 
  sculpture 
  are 
  hard 
  to 
  define 
  

   and 
  differences 
  in 
  color 
  consist 
  largely 
  of 
  differences 
  in 
  shades 
  of 
  yel- 
  

   low, 
  since 
  all 
  the 
  species 
  are 
  yellowish 
  sometimes 
  varied 
  with 
  admix- 
  

   tures 
  of 
  blackish 
  or 
  fuscous. 
  The 
  following 
  key 
  to 
  species 
  is 
  offered 
  

   as 
  an 
  aid 
  to 
  identification 
  but 
  should 
  be 
  supplemented 
  by 
  comparison 
  

   with 
  types 
  or 
  authentically 
  determined 
  specimens 
  whenever 
  possible 
  : 
  

  

  KEY 
  TO 
  THE 
  DESCRIBED 
  SPECIES 
  OF 
  PSEUD 
  APHYCUS 
  

  

  FEMALES 
  

  

  1. 
  Pedicel 
  of 
  antenna 
  as 
  long 
  as 
  or 
  longer 
  than 
  first 
  three 
  segments 
  of 
  funicle 
  

  

  combined, 
  funicular 
  segments 
  from 
  first 
  to 
  last 
  successively 
  increasing 
  in 
  

  

  width 
  and 
  all 
  more 
  or 
  less 
  transverse 
  2 
  

  

  Pedicel 
  of 
  antenna 
  not 
  longer 
  than 
  first 
  two 
  funicular 
  segments 
  combined; 
  

   first 
  funicular 
  segment 
  small, 
  transverse, 
  narrower 
  than 
  pedicel 
  ; 
  segments 
  

   2 
  to 
  5 
  of 
  funicle 
  subquadrate, 
  subequal, 
  and 
  each 
  a 
  little 
  broader 
  than 
  

   pedicel 
  1. 
  meritorius, 
  new 
  species 
  

  

  2. 
  Ovipositor 
  exserted 
  one-fifth 
  to 
  nearly 
  one-half 
  length 
  of 
  abdomen 
  3 
  

  

  OvijDOSitor 
  extending 
  barely 
  beyond 
  apex 
  of 
  abdomen, 
  at 
  most 
  distinctly 
  less 
  

  

  than 
  one-sixth 
  length 
  of 
  abdomen 
  2. 
  prosopidis 
  Timberlake 
  

  

  3. 
  Wings 
  hyaline; 
  scape 
  not 
  expanded 
  beneath 
  4 
  

  

  Wings 
  at 
  least 
  faintly 
  fuscous 
  ; 
  scape 
  often 
  but 
  not 
  always 
  somewhat 
  thick- 
  

   ened 
  or 
  slightly 
  expanded 
  beneath 
  5 
  

  

  4. 
  General 
  color 
  pale 
  lemon-yellow 
  ; 
  hairs 
  on 
  mesoscutum 
  white; 
  ocellar 
  triangle 
  

  

  rather 
  small 
  and 
  nearly 
  equilateral; 
  ovipositor 
  exserted 
  about 
  one-third 
  

  

  length 
  of 
  abdomen 
  3. 
  graminicola 
  Timberlake 
  

  

  €reneral 
  color 
  bright 
  orange-yellow; 
  hairs 
  on 
  mesoscutum 
  dark 
  brown 
  or 
  

   blackish 
  ; 
  ocellar 
  triangle 
  obviously 
  acute 
  and 
  unusually 
  large 
  ; 
  ovipositor 
  

   exserted 
  about 
  one-fifth 
  length 
  of 
  abdomen 
  4. 
  utilis 
  Timberlake 
  

  

  5. 
  Porewing 
  fuscous 
  with 
  a 
  more 
  or 
  less 
  distinct 
  paler 
  hyaline 
  or 
  subhyaline 
  

  

  transverse 
  streak 
  beyond 
  apex 
  of 
  stigmal 
  vein; 
  scape 
  obviously 
  a 
  little 
  

  

  '''' 
  thickened 
  or 
  broadened 
  6 
  

  

  S'',Forewing 
  uniformly 
  fuscous 
  or 
  subfuscous, 
  without 
  a 
  paler 
  transverse 
  streak; 
  

  

  ,.v 
  scape 
  usually 
  slightly 
  thickened 
  but 
  sometimes 
  cylindrical 
  9 
  

  

  <5. 
  Anterior 
  ocellus 
  at 
  center 
  of 
  f 
  rontovertex 
  ; 
  speculum 
  of 
  forewing 
  not 
  inter- 
  

   rupted; 
  mesoscutum, 
  axillae, 
  and 
  scutellum 
  bright 
  orange-yellow, 
  with 
  a 
  

   conspicuous 
  narrow 
  transverse 
  band 
  of 
  black 
  at 
  anterior 
  margin 
  of 
  meso- 
  

   scutum 
  5. 
  websteri 
  Timberlake 
  

  

  Anterior 
  ocellus 
  distinctly 
  above 
  center 
  of 
  f 
  rontovertex 
  ; 
  speculum 
  of 
  forewing 
  

   interrupted 
  a 
  little 
  behind 
  middle 
  ; 
  mesoscutum, 
  axillae, 
  and 
  scutellum 
  more 
  

   or 
  less 
  dusky 
  orange 
  to 
  blackish 
  yellow, 
  anterior 
  margin 
  of 
  mesoscutum 
  with 
  

   suture 
  sometimes 
  blackish 
  but 
  never 
  forming 
  a 
  conspicuous 
  and 
  well- 
  

   defined 
  transverse 
  band 
  7 
  

  

  