﻿WASPS 
  OF 
  GENUS 
  TRIMORUS 
  — 
  FOUTS 
  143 
  

  

  to 
  the 
  tip 
  of 
  the 
  abdomen; 
  abdomen 
  1.6 
  times 
  as 
  long 
  as 
  wide; 
  petiole 
  

   1.35 
  times 
  as 
  wide 
  as 
  long, 
  with 
  num^erous 
  grooves 
  to 
  anterior 
  margin 
  

   which 
  is 
  narrowly 
  refiexed, 
  without 
  a 
  transverse 
  depression; 
  second 
  

   tergite 
  twice 
  as 
  wide 
  as 
  long, 
  1.3 
  times 
  as 
  long 
  as 
  the 
  petiole, 
  with 
  

   parallel 
  or 
  slightly 
  diverging 
  ridges 
  to 
  apical 
  fom^th; 
  laterally 
  where 
  

   the 
  ridges 
  are 
  shorter, 
  the 
  surface 
  is 
  impressed 
  reticulate; 
  third 
  tergite 
  

   1.45 
  times 
  as 
  Made 
  as 
  long, 
  2.1 
  tunes 
  as 
  long 
  as 
  the 
  second, 
  very 
  strongly 
  

   impressed 
  reticulate, 
  faintly 
  reticulate 
  laterally, 
  polished 
  narrowly 
  

   along 
  posterior 
  margui; 
  fourth 
  tergite 
  impressed-reticulate 
  anteriorly; 
  

   following 
  tergites 
  smooth, 
  without 
  sculp 
  tiu-e; 
  black; 
  legs 
  dark 
  brown, 
  

   the 
  knees, 
  tibiae 
  distally, 
  and 
  tarsi, 
  except 
  termmal 
  joints 
  reddish 
  

   brown. 
  

  

  Type 
  locality. 
  — 
  Ottawa, 
  Canada. 
  

  

  T?/2?e.— 
  U.S.N. 
  M. 
  No. 
  24497. 
  

  

  New 
  locality.- 
  — 
  Chilliwack, 
  British 
  Columbia. 
  

  

  Redescribed 
  from 
  one 
  specimen 
  collected 
  June 
  9, 
  1926, 
  by 
  Oscar 
  

   Whittaker. 
  This 
  specimen 
  was 
  compared 
  with 
  the 
  type 
  of 
  melanopus 
  

   in 
  the 
  National 
  Museum 
  at 
  Washington. 
  

  

  (78) 
  TRIMORUS 
  RETICULATUS, 
  new 
  species 
  

  

  Female.— 
  hength 
  1.17 
  mm. 
  Head 
  about 
  as 
  wide 
  as 
  the 
  thorax, 
  a 
  

   little 
  wider 
  than 
  the 
  abdomen; 
  vertex, 
  occiput, 
  and 
  frons 
  above, 
  and 
  

   below 
  on 
  the 
  sides, 
  with 
  unpressed 
  reticulation 
  ; 
  a 
  few 
  small 
  punctures 
  

   in 
  the 
  reticulation 
  above 
  on 
  the 
  frons 
  ; 
  frons 
  with 
  a 
  fine 
  median 
  carina 
  

   to 
  median 
  ocellus, 
  otherwise, 
  except 
  as 
  noted 
  above, 
  smooth, 
  without 
  

   sculpture; 
  thorax 
  as 
  wide 
  as 
  long, 
  about 
  as 
  wide 
  as 
  the 
  abdomen; 
  

   mesonotum 
  and 
  scutellum 
  smooth, 
  with 
  a 
  fine, 
  somewhat 
  indistinct, 
  

   reticulation; 
  parapsidal 
  grooves 
  short; 
  metanotal 
  spine 
  moderately 
  

   long, 
  acute 
  apically; 
  lateral 
  angles 
  of 
  propodeiun 
  rather 
  long, 
  acute; 
  

   wings 
  hyaline, 
  extending 
  nearly 
  a 
  fifth 
  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, 
  evenlj'' 
  rounded 
  above, 
  with 
  about 
  twelve 
  

   longitudinal 
  grooves 
  extending 
  to 
  the 
  anterior 
  margin; 
  petiole 
  not 
  

   elevated 
  anteriorly 
  and 
  with 
  a 
  transverse 
  depression; 
  second 
  tergite 
  

   1.8 
  times 
  as 
  wide 
  as 
  long, 
  1.4 
  times 
  as 
  long 
  as 
  the 
  petiole, 
  with 
  about 
  

   twelve 
  grooves 
  extending 
  to 
  apical 
  third; 
  thhd 
  tergite 
  1.45 
  times 
  as 
  

   wide 
  as 
  long, 
  2.4 
  times 
  as 
  long 
  as 
  the 
  second, 
  with 
  uniform, 
  moderately 
  

   impressed 
  reticulation 
  over 
  its 
  entire 
  surface 
  (except 
  narrowly 
  laterally 
  

   and 
  posteriorly), 
  without 
  pubescence 
  medially; 
  black; 
  legs 
  dark 
  

   brown, 
  the 
  trochanters, 
  knees, 
  anterior 
  tibiae 
  apically, 
  and 
  tarsi, 
  

   lighter. 
  

  

  Type 
  locality. 
  — 
  Glen 
  Echo, 
  Md. 
  

  

  Type.— 
  V.S.N. 
  M. 
  No. 
  57816. 
  

  

  One 
  specimen 
  collected 
  in 
  August 
  1922 
  by 
  the 
  author. 
  

  

  