﻿CHALCIDOIDEA 
  RELATED 
  TO 
  CEROCEPHALA 
  — 
  GAHAN 
  vSl 
  

  

  just 
  touching 
  at 
  the 
  median 
  line 
  or 
  narrowly 
  separated; 
  scutellum 
  

   nearly 
  flat, 
  without 
  a 
  cross 
  furrow; 
  propodeum 
  not 
  declivous, 
  its 
  

   dorsum 
  lying 
  in 
  a 
  plane 
  only 
  a 
  little 
  lower 
  than 
  that 
  of 
  scutellum, 
  

   without 
  carinae 
  or 
  lateral 
  folds 
  and 
  not 
  produced 
  into 
  a 
  neck 
  

   posteriorly; 
  prepectus 
  moderately 
  large, 
  triangular; 
  mesopleuron 
  

   with 
  a 
  weak 
  femoral 
  impression. 
  Wings 
  either 
  present 
  or 
  absent; 
  

   when 
  winged, 
  marginal 
  vein 
  of 
  forewing 
  as 
  long 
  as 
  submarginal 
  

   or 
  longer, 
  with 
  a 
  distinct 
  callus 
  or 
  thickening 
  at 
  its 
  juncture 
  with 
  

   submarginal, 
  this 
  callus 
  often 
  but 
  not 
  always 
  bearing 
  a 
  tuft 
  of 
  

   erect 
  bristles 
  ; 
  stigmal 
  vein 
  never 
  more 
  than 
  one-fourth 
  as 
  long 
  as 
  

   marginal, 
  usually 
  much 
  shorter; 
  postmarginal 
  vein 
  never 
  longer 
  

   than 
  stigmal, 
  usually 
  weak, 
  and 
  sometimes 
  absent; 
  discal 
  cilia 
  

   absent 
  or 
  vestigial 
  but 
  marginal 
  cilia 
  moderately 
  long 
  and 
  dense; 
  

   hind 
  wing 
  unusually 
  large 
  with 
  the 
  marginellan 
  vein 
  usually 
  

   longer 
  than 
  submarginella. 
  Forewing 
  usually 
  with 
  one 
  or 
  two 
  

   fuscous 
  areas 
  or 
  cross 
  bands. 
  Hind 
  tibia 
  with 
  two 
  slender, 
  

   unequal, 
  and 
  often 
  very 
  short 
  spurs. 
  Abdomen 
  petiolate; 
  oviposi- 
  

   tor 
  usually 
  shortly 
  exserted, 
  rarely 
  half 
  as 
  long 
  as 
  abdomen; 
  

   gaster 
  of 
  female 
  subcylindrical, 
  sometimes 
  flattened 
  above 
  or 
  a 
  

   little 
  compressed 
  from 
  the 
  sides; 
  of 
  male 
  compressed 
  dorsoven- 
  

   trally 
  and 
  subtruncate 
  at 
  apex. 
  Tegument 
  of 
  head 
  and 
  thorax 
  

   usually 
  smooth 
  and 
  polished, 
  occasionally 
  sculptured. 
  

  

  KEY 
  TO 
  THE 
  KNOWN 
  GENERA 
  OF 
  CEROCEPHALINAE 
  

   j. 
  Funicle 
  5-segTnented 
  in 
  the 
  female, 
  6-segmented 
  in 
  the 
  male; 
  club 
  solid 
  

   in 
  both 
  sexes. 
  Forewing 
  with 
  a 
  tuft 
  of 
  erect 
  bristles 
  at 
  junction 
  of 
  

   submarginal 
  and 
  marginal 
  veins 
  (apterous 
  and 
  subapterous 
  individuals 
  

   of 
  both 
  sexes 
  common) 
  1. 
  Choetospila 
  Westwood 
  

  

  Funicle 
  6-segmented 
  in 
  female, 
  6- 
  or 
  7-segmented 
  in 
  male; 
  club 
  of 
  female 
  

   either 
  solid 
  or 
  indistinctly 
  3-segmented; 
  club 
  of 
  male 
  may 
  be 
  solid, 
  

   distinctly 
  2-8egmented 
  or 
  indistinctly 
  3-segmented. 
  Foi-ewing 
  with 
  or 
  

   without 
  a 
  tuft 
  of 
  erect 
  bristles 
  at 
  junction 
  of 
  submarginal 
  and 
  marginal 
  

   veins 
  (apterous 
  forms 
  occur) 
  2 
  

  

  2. 
  Head, 
  pronotum, 
  mesoscutum, 
  and 
  .scutellum 
  sculptured; 
  axillae 
  obliquely 
  

  

  sulcate; 
  forewing 
  without 
  a 
  tuft 
  of 
  bristles 
  at 
  junction 
  of 
  marginal 
  

   and 
  submarginal 
  veins 
  7 
  

  

  Head 
  dorsally, 
  and 
  mesoscutum 
  entirely 
  smooth 
  and 
  polished; 
  pronotum 
  

   usually 
  smooth 
  but 
  sometimes 
  sculptured; 
  axillae 
  and 
  scutellum 
  usually 
  

   polished 
  but 
  sometimes 
  more 
  or 
  less 
  striated; 
  forewing 
  with 
  or 
  without 
  

   a 
  tuft 
  of 
  bristles 
  3 
  

  

  3. 
  Mandibles 
  unusually 
  long 
  and 
  conspicuous 
  6 
  

   Mandibles 
  normal 
  4 
  

  

  4. 
  Antennae 
  inserted 
  very 
  distinctly 
  below 
  a 
  line 
  connecting 
  lower 
  extremi- 
  

  

  ties 
  of 
  eyes; 
  head 
  viewed 
  anteriorly 
  as 
  long 
  as 
  broad 
  or 
  longer 
  with 
  

   sides 
  parallel; 
  subapterous 
  or 
  fully 
  winged; 
  fully 
  developed 
  wing 
  with 
  

   a 
  tuft 
  of 
  bristles 
  at 
  juncture 
  of 
  submarginal 
  and 
  marginal 
  veins, 
  post- 
  

   marginal 
  vein 
  absent 
  or 
  represented 
  by 
  merely 
  a 
  short 
  stub. 
  

  

  2. 
  Th<?ocolax 
  Westwood 
  

  

  