﻿PROCEEDINGS 
  OF 
  THE 
  UNITED 
  STATES 
  NATIONAL 
  MUSEUM 
  

  

  issued 
  

  

  SMITHSONIAN 
  INSTITUTION 
  

  

  U. 
  S. 
  NATIONAL 
  MUSEUM 
  

   Vol. 
  96 
  Washington: 
  1946 
  No. 
  3203 
  

  

  REVIEW 
  OF 
  SOME 
  CHALCIDOID 
  GENERA 
  RELATED 
  TO 
  

   CEROCEPHALA 
  WESTWOOD 
  

  

  By 
  A. 
  B. 
  Gahan 
  

  

  This 
  review 
  of 
  some 
  genera 
  related 
  to 
  Cerocephala 
  Westwood 
  

   was 
  occasioned 
  by 
  difficulty 
  experienced 
  in 
  placing 
  satisfactorily 
  

   specimens 
  received 
  for 
  identification. 
  It 
  is 
  hoped 
  that 
  the 
  fol- 
  

   lowing 
  treatment 
  will 
  eliminate 
  some 
  of 
  the 
  existing 
  confusion 
  

   regarding 
  these 
  genera 
  and 
  make 
  identification 
  somewhat 
  more 
  

   certain. 
  

  

  Cerocephala 
  and 
  its 
  allies 
  have 
  been 
  associated 
  by 
  most 
  authors 
  

   with 
  the 
  genus 
  Spalanf/ia 
  Latreille 
  to 
  form 
  a 
  subfamily 
  Spalangi- 
  

   inae 
  or 
  a 
  tribe 
  Spalangiini 
  in 
  the 
  family 
  Pteromalidae. 
  In 
  my 
  

   opinion 
  Cerocephala 
  and 
  its 
  allies 
  are 
  not 
  closely 
  related 
  to 
  

   Spalanf/ia 
  and 
  should 
  form 
  a 
  separate 
  group 
  for 
  which 
  I 
  propose 
  

   the 
  name 
  Cerocephalinae. 
  Although 
  resembling 
  each 
  other 
  in 
  

   many 
  respects, 
  the 
  two 
  groups 
  have 
  quite 
  different 
  host 
  relations 
  

   and 
  can 
  be 
  separated 
  by 
  several 
  good 
  characters. 
  The 
  Spalangi- 
  

   inae 
  are 
  all 
  parasitic 
  in 
  dipterous 
  puparia, 
  while 
  the 
  Cerocepha- 
  

   linae 
  so 
  far 
  as 
  known 
  are 
  all 
  associated 
  with 
  Coleoptera. 
  

  

  The 
  Spalangiiiiae 
  and 
  Cerocei)halinae 
  may 
  be 
  separated 
  by 
  the 
  

   following 
  dichotomy: 
  

  

  Hind 
  tibia 
  with 
  one 
  calcariuni. 
  Antennao 
  inserted 
  at 
  the 
  extreme 
  anterior 
  

   nianfi'i 
  of 
  head, 
  never 
  scpaiated 
  at 
  base 
  by 
  a 
  frontal 
  carina; 
  funicle 
  always 
  

   7-seK-mentefl. 
  Forewing 
  without 
  a 
  callu.s 
  or 
  tuft 
  of 
  bristles 
  at 
  the 
  proximal 
  

   end 
  of 
  the 
  marginal 
  vein 
  and 
  without 
  transverse 
  fuscous 
  band.s; 
  scutcllum 
  

   usually 
  with 
  a 
  punctate 
  cross 
  furrow 
  before 
  apex 
  Spalangiinac 
  Westwood 
  

  

  Hind 
  tibia 
  with 
  two 
  calcaria. 
  .Antennae 
  in.serted 
  well 
  above 
  extreme 
  ante- 
  

   rior 
  margin 
  of 
  hoad 
  although 
  frequently 
  distinctly 
  below 
  ventral 
  extremities 
  

   of 
  eyes, 
  always 
  separated 
  at 
  base 
  by 
  a 
  frontal 
  carina 
  or 
  prominence; 
  

   funicle 
  5- 
  or 
  6-8egmented, 
  oi- 
  rarely 
  7-segm«Mited 
  in 
  somo 
  males. 
  Forewing 
  

  

  349 
  

  

  