﻿WASPS 
  OF 
  GENUS 
  TRIMORUS 
  — 
  FOUTS 
  105 
  

  

  with 
  a 
  median 
  longitudinal 
  carina, 
  stronger 
  below, 
  extending 
  to 
  the 
  

   anterior 
  ocellus; 
  below 
  and 
  laterally 
  to 
  the 
  summit 
  of 
  the 
  eye 
  the 
  

   frons 
  is 
  strongly 
  carinate; 
  upper 
  part 
  of 
  frons 
  smooth, 
  with 
  large 
  

   punctures, 
  these 
  punctures 
  several 
  tunes 
  their 
  diameter 
  distant 
  from 
  

   one 
  another; 
  below 
  this 
  punctate 
  area 
  the 
  frons 
  is 
  smooth, 
  and, 
  

   except 
  for 
  the 
  median 
  carina, 
  without 
  scidpture; 
  vertex 
  separated 
  from 
  

   the 
  occiput 
  by 
  a 
  subacute 
  ridge; 
  occiput 
  striatopimctate 
  ; 
  mesonotum 
  

   and 
  scutellum 
  umbilicately 
  punctate, 
  the 
  punctures 
  much 
  shallower 
  

   than 
  wide; 
  posteriorly 
  on 
  the 
  mesonotum 
  the 
  punctures 
  are 
  larger, 
  

   irregular, 
  and 
  more 
  or 
  less 
  confluent; 
  parapsidal 
  grooves 
  not 
  present; 
  

   spine 
  of 
  metanotum 
  long, 
  acute, 
  reaching 
  above 
  the 
  middle 
  of 
  the 
  

   petiole; 
  wings 
  narrow, 
  extending 
  about 
  to 
  the 
  middle 
  of 
  the 
  second 
  

   tergite, 
  not 
  ciliate; 
  abdomen 
  very 
  little 
  longer 
  than 
  the 
  head 
  and 
  

   thorax 
  combined, 
  1.2 
  times 
  as 
  long 
  as 
  wide, 
  ovate; 
  petiole 
  about 
  one 
  

   and 
  one-half 
  times 
  as 
  wide 
  as 
  long, 
  with 
  a 
  number 
  of 
  longitudinal 
  

   grooves 
  separated 
  by 
  low 
  rounded 
  ridges; 
  second 
  tergite 
  likewise 
  with 
  

   grooves 
  but 
  they 
  are 
  wide 
  and 
  shallow^, 
  slightly 
  wider 
  apically 
  than 
  

   basally, 
  the 
  intervening 
  ridges 
  extending 
  to 
  apical 
  fourth 
  ; 
  third 
  tergite 
  

   about 
  one 
  and 
  two-thhds 
  times 
  as 
  wide 
  as 
  long, 
  three 
  times 
  as 
  long 
  as 
  

   the 
  second, 
  striatopunctate 
  on 
  basal 
  three-fourths 
  except 
  medially 
  

   where 
  it 
  is 
  smooth; 
  striae 
  on 
  third 
  tergite 
  irregular, 
  ^\■avy, 
  becoming 
  

   finer 
  posteriorly; 
  laterally 
  and 
  on 
  a 
  median 
  longitudinal 
  area 
  the 
  third 
  

   tergite 
  is 
  smooth, 
  punctate 
  but 
  not 
  striate; 
  punctures 
  scattered, 
  large 
  

   anteriorly 
  on 
  the 
  third 
  tergite, 
  becoming 
  much 
  smaller 
  posteriorly, 
  

   scattered 
  all 
  over 
  the 
  surface 
  except 
  on 
  a 
  narrow 
  band 
  posteriorly; 
  

   black; 
  proximal 
  five 
  antennal 
  joints 
  light 
  brownish 
  yellow; 
  legs 
  yellow, 
  

   the 
  posterior 
  tibiae 
  and 
  tarsi 
  light 
  brownish; 
  thorax 
  reddish 
  brown, 
  

   the 
  scutellum 
  and 
  a 
  large 
  median 
  spot 
  on 
  the 
  mesonotum 
  black; 
  

   petiole 
  reddish 
  brown. 
  

  

  Type 
  locality 
  .—Glen 
  Echo, 
  Md. 
  

  

  Type.— 
  V.S.N. 
  M. 
  No. 
  57775. 
  

  

  One 
  specimen 
  collected 
  by 
  the 
  author. 
  

  

  This 
  pretty 
  species 
  is 
  apparently 
  closely 
  allied 
  to 
  grandis 
  Brues. 
  

   Its 
  distinctive 
  color 
  pattern 
  enables 
  it 
  to 
  be 
  readily 
  separated 
  from 
  

   all 
  our 
  described 
  species. 
  

  

  (7) 
  TRIMORUS 
  CRASSELLU9, 
  new 
  name 
  

  

  Gryon 
  columbianus 
  Ashmead, 
  U. 
  S. 
  Nat. 
  i\liis. 
  Bull. 
  45, 
  p. 
  208, 
  1893 
  (female). 
  — 
  - 
  

  

  Brues, 
  Genera 
  insectorum, 
  fasc. 
  80, 
  p. 
  25, 
  1908. 
  

   Paragryon 
  columbianus, 
  Kieffer, 
  Genera 
  insectorum, 
  fasc. 
  SOB, 
  p. 
  99, 
  1910. 
  — 
  • 
  

  

  Brues, 
  Connecticut 
  Geol. 
  Nat. 
  Hist. 
  Surv. 
  Bull. 
  22, 
  p. 
  554, 
  1916. 
  — 
  Kieffer, 
  

  

  Das 
  Tierreich, 
  Lief. 
  48, 
  p. 
  237, 
  1926 
  (female). 
  

  

  The 
  name 
  columbianus 
  is 
  precoccupied 
  in 
  Trimorus 
  by 
  columbianus 
  

   Ashmead 
  (described 
  in 
  Prosacantha 
  in 
  1893). 
  

  

  783388—48 
  3 
  

  

  