﻿WASPS 
  OF 
  GENUS 
  TRIMORUS 
  FOUTS 
  147 
  

  

  (84) 
  TRIMORUS 
  L 
  E 
  PI 
  D 
  US. 
  new 
  species 
  

  

  Female. 
  — 
  Longth 
  1.07 
  mm. 
  Head 
  about 
  twice 
  as 
  wide 
  as 
  long, 
  1.1 
  

   times 
  as 
  wide 
  as 
  the 
  thorax, 
  a 
  Uttle 
  wider 
  than 
  the 
  abdomen; 
  frons 
  

   smooth, 
  without 
  sculpture 
  except 
  a 
  small 
  reticulate 
  spot 
  below 
  on 
  

   either 
  side, 
  with 
  a 
  fine 
  carina 
  extending 
  to 
  median 
  ocellus 
  ; 
  vertex 
  with- 
  

   out 
  sculpture; 
  occiput 
  finely 
  reticulate; 
  thorax 
  slightly 
  longer 
  than 
  

   wide, 
  a 
  little 
  narrower 
  than 
  the 
  abdomen; 
  mesonotum 
  finely 
  scaly- 
  

   reticulate, 
  apparently 
  without 
  parapsidal 
  grooves; 
  scutellum 
  smooth 
  

   posteriorly, 
  reticulate 
  anteriorly; 
  spine 
  on 
  metanotum 
  short, 
  acute 
  

   apically; 
  lateral 
  angles 
  of 
  propodeum 
  projecting, 
  blunt; 
  wings 
  extend- 
  

   ing 
  two-fifths 
  the 
  length 
  of 
  the 
  abdomen 
  past 
  the 
  latter's 
  apex; 
  

   abdomen 
  1.6 
  times 
  as 
  long 
  as 
  wide; 
  petiole 
  about 
  twice 
  as 
  wide 
  as 
  long, 
  

   with 
  a 
  number 
  of 
  grooves 
  which 
  extend 
  to 
  the 
  very 
  narrowly 
  reflexed 
  

   anterior 
  margin; 
  second 
  tergite 
  1.7 
  times 
  as 
  wide 
  as 
  long, 
  1.6 
  times 
  as 
  

   long 
  as 
  the 
  petiole, 
  sculptured 
  as 
  in 
  perspicuus, 
  except 
  that 
  the 
  ridges 
  

   extend 
  to 
  apical 
  third; 
  third 
  tergite 
  1.4 
  times 
  as 
  wide 
  as 
  long, 
  2.45 
  

   times 
  as 
  long 
  as 
  the 
  second, 
  evenly 
  reticulate, 
  without 
  pubescence 
  

   except 
  laterally 
  where 
  it 
  is 
  sparse; 
  pubescence 
  everywhere 
  on 
  the 
  body 
  

   sparse 
  and 
  fine; 
  black; 
  legs 
  dark 
  brown, 
  the 
  trochanters, 
  knees, 
  tibiae 
  

   apically, 
  and 
  tarsi 
  except 
  distally, 
  somewhat 
  lighter; 
  mngs 
  light 
  

   brownish. 
  

  

  TTjpe 
  locality. 
  — 
  Hollyburn, 
  British 
  Columbia. 
  

  

  Type.—V.S.'N.M. 
  No. 
  57820. 
  

  

  Two 
  females 
  collected 
  June 
  9, 
  1928, 
  and 
  September 
  27, 
  1929, 
  by 
  

   Oscar 
  Whittaker. 
  Paratype 
  m 
  Whittaker 
  collection. 
  

  

  NEARCTIC 
  SPECIES 
  NOT 
  INCLUDED 
  IN 
  THE 
  KEY 
  

  

  TRIMORUS 
  BETHUNEI 
  (Sanders) 
  

  

  Hoplogryon 
  bethunei 
  Sanders, 
  Can. 
  Ent., 
  vol. 
  42, 
  p. 
  15, 
  1910 
  (male). 
  — 
  Kieffer, 
  

   Genera 
  insectorum, 
  fasc. 
  SOB, 
  p. 
  96, 
  1910; 
  Das 
  Tierreich, 
  Lief. 
  48, 
  p. 
  214, 
  

   1926 
  (male). 
  

  

  Mr. 
  Sanders's 
  description, 
  although 
  very 
  good, 
  does 
  not 
  include 
  

   information 
  necessary 
  to 
  splace 
  the 
  species 
  in 
  the 
  key. 
  No 
  mention 
  

   is 
  made 
  of 
  the 
  presence 
  or 
  absence 
  of 
  the 
  parapsidal 
  grooves, 
  of 
  the 
  

   sculpture 
  of 
  the 
  third 
  sternite, 
  or 
  of 
  the 
  color 
  of 
  the 
  coxae. 
  

  

  Type 
  locality. 
  — 
  Aurora, 
  111. 
  

  

  One 
  specimen 
  collected 
  June 
  15, 
  1909, 
  in 
  the 
  nest 
  of 
  Formica 
  

   subruja. 
  

  

  Type. 
  — 
  In 
  Illinois 
  State 
  Laboratory 
  of 
  Natural 
  History, 
  Ace. 
  No. 
  

   39771. 
  

  

  TRIMORUS 
  GRACILICORNIS 
  (Ashmead) 
  

  

  Prosacantha 
  gracilicornis 
  Ashmead, 
  U. 
  S. 
  Nat. 
  Mus. 
  Bull. 
  45, 
  p. 
  193, 
  1893 
  

   (female). 
  — 
  Brues, 
  Genera 
  insectorum, 
  fasc, 
  80, 
  p. 
  22, 
  1908. 
  

  

  Hoplogryon 
  gracilicornis, 
  Kieffer, 
  Genera 
  insectorum, 
  fasc. 
  80B, 
  p. 
  95, 
  1910; 
  

   Das 
  Tierreich, 
  Lief. 
  48, 
  p. 
  228, 
  1926 
  (female). 
  

  

  