﻿GENERIC 
  REVISION 
  OF 
  THE 
  OPHIONINI 
  — 
  CUSHMAN 
  429 
  

  

  base 
  on 
  each 
  side: 
  midtlle 
  terprites 
  not'ciiinrixinate 
  medially; 
  ovipositor 
  

   not 
  exsertcd; 
  male 
  hypopygium 
  with 
  apex 
  arcuate 
  or 
  medially 
  emar- 
  

   ginate, 
  paramere 
  (pi. 
  55, 
  iig. 
  84) 
  acutely 
  pointed 
  at 
  apex 
  and 
  fre- 
  

   quently 
  suhapically 
  annulate 
  on 
  lower 
  margin. 
  

  

  This 
  genus, 
  containing 
  about 
  30 
  species, 
  is 
  divisible 
  into 
  two 
  fairly 
  

   distinct 
  groups, 
  one 
  mcluding 
  the 
  genotypes 
  of 
  both 
  Thyreodon 
  and 
  

   Older, 
  characterized 
  by 
  small 
  head, 
  sloping 
  temples, 
  more 
  distinct 
  

   notaulices, 
  frequently 
  with 
  prominent 
  rugae 
  at 
  their 
  anterior 
  ends, 
  

   and 
  slenderer 
  habitus; 
  and 
  the 
  other 
  consisting 
  of 
  T. 
  atricolor 
  (Olivier), 
  

   grandis 
  Cresson, 
  fernaldi 
  Hooker, 
  and 
  their 
  relatives 
  with 
  larger 
  head, 
  

   broader 
  temples, 
  obsolescent 
  notauhces 
  and 
  stouter 
  habitus. 
  These 
  

   appear 
  to 
  be 
  all 
  characters 
  of 
  specific 
  rather 
  than 
  generic 
  significance. 
  

  

  2. 
  Genus 
  ATHYREODON 
  Ashmead 
  

  

  Plate 
  51, 
  Figure 
  33; 
  Plate 
  52, 
  Figure 
  37; 
  Plate 
  56, 
  Figure 
  87 
  

  

  Athyreodon 
  Ashmead, 
  Proc. 
  U. 
  S. 
  Nat. 
  Mu?., 
  vol. 
  23, 
  p. 
  87, 
  1900.— 
  Hooker, 
  

   Trans. 
  Amer. 
  Ent. 
  Soc, 
  vol. 
  38, 
  p. 
  100, 
  1912. 
  [Genotype: 
  (Athyreodon 
  

   thorarirus 
  A?hme&d) 
  = 
  Athyreodon 
  atriventris 
  (Cresson), 
  according 
  to 
  Hooker, 
  

   1912.] 
  Monobasic. 
  

  

  Tipulophion 
  Krieciibaumer, 
  Zeitschr. 
  Hym. 
  Dip., 
  xn\. 
  1, 
  p. 
  75, 
  1901. 
  — 
  Schulz, 
  

   ZeiLschr. 
  Hym. 
  Dip., 
  vol. 
  3, 
  p. 
  252, 
  1903; 
  Spolia 
  hymenopterologica, 
  p. 
  97, 
  

   1006. 
  [Genotype: 
  {Tipulophion 
  gigas 
  Krieciibaumer) 
  = 
  yl//!J/reof/on 
  atri- 
  

   ventris 
  (Cresson), 
  according 
  to 
  Hooker, 
  1912.] 
  Monobasic. 
  

  

  Macrophion 
  Sz^pligeti, 
  in 
  Wytsnum, 
  Genera 
  insectorum, 
  fasc. 
  34, 
  p. 
  32, 
  1905. 
  — 
  

   ScHMiKDEKNECHT, 
  Opuscula 
  iclincumonologica, 
  fasc. 
  18, 
  p. 
  1420, 
  1908. 
  — 
  

   MoRLEY, 
  A 
  revision 
  of 
  the 
  Ichncuraonidae 
  based 
  on 
  the 
  collection 
  in 
  the 
  

   British 
  Museum 
  (Natural 
  History), 
  pt. 
  1, 
  p. 
  14, 
  1912, 
  [Genotype: 
  {Macro- 
  

   phion 
  ornalus 
  Sz^pligeti) 
  = 
  (T/ij/rcor/on) 
  Macrophion 
  grenadensis 
  (Ashmead), 
  

   according 
  to 
  .Morley, 
  1912. 
  By 
  designation 
  of 
  Viercck, 
  Proc. 
  U. 
  S. 
  Nat. 
  Mus., 
  

   vol. 
  42, 
  p. 
  640, 
  1912.] 
  

  

  Hooker 
  seems 
  to 
  have 
  been 
  correct 
  in 
  synonymizing 
  the 
  genotypes 
  

   of 
  Athyreodon 
  and 
  Tipulophwn 
  with 
  atriventris 
  (Cresson), 
  and 
  there 
  

   appears 
  little 
  doubt 
  that 
  both 
  Macrophion 
  ornatus 
  Sz^pligeti 
  and 
  

   Thyreodon 
  grenadensis 
  arc 
  also 
  atriventris. 
  

  

  This 
  genus, 
  also 
  Neotropical, 
  is 
  closely 
  related 
  to 
  Thyreodon, 
  from 
  

   which, 
  in 
  the 
  species 
  that 
  resemble 
  Thyreodon 
  most 
  clo.sely, 
  it 
  is 
  rather 
  

   weakly 
  separated. 
  With 
  the 
  acquisition 
  of 
  more 
  material 
  it 
  may 
  be 
  

   found 
  neces.sary 
  to 
  synonymize 
  it 
  with 
  Thyreodon, 
  but 
  on 
  the 
  basis 
  of 
  

   the 
  9 
  or 
  10 
  species 
  available 
  to 
  me 
  it 
  is 
  distinguishable 
  as 
  follows: 
  

  

  Head 
  (pi. 
  51, 
  fig. 
  3.*]): 
  Temples 
  usually 
  very 
  narrow 
  and 
  genae 
  

   narrow 
  below, 
  rarely 
  both 
  broad; 
  eyes 
  larger, 
  more 
  deeply 
  emarginate; 
  

   malar 
  space 
  usually 
  very 
  short, 
  rarely 
  as 
  in 
  Thyreodon', 
  ocelli 
  large, 
  

   ocellocular 
  space 
  fref|uently 
  o})solele 
  and 
  rarely 
  as 
  long 
  as 
  diameter 
  of 
  

   an 
  ocellus; 
  antennal 
  scrobes 
  small 
  and 
  poorly 
  defined; 
  clypeus 
  sharply 
  

   rounded 
  but 
  not 
  angulate 
  at 
  apex; 
  second 
  joint 
  of 
  maxillary 
  palpus 
  

   inflated. 
  

  

  