﻿WASPS 
  OF 
  GENUS 
  TRIMORUS 
  — 
  FOUTS 
  119 
  

  

  One 
  specimen 
  collected 
  on 
  September 
  9, 
  1929, 
  by 
  Oscar 
  Whittaker. 
  

   This 
  species 
  may 
  possibly 
  be 
  the 
  opposite 
  sex 
  of 
  pictus, 
  

  

  (28) 
  TRIMORUS 
  PICTUS, 
  new 
  species 
  

  

  Female. 
  — 
  Length 
  1.73 
  mm. 
  Head 
  twice 
  as 
  wide 
  as 
  long, 
  1.2 
  times 
  as 
  

   wide 
  as 
  the 
  thorax, 
  0.93 
  times 
  as 
  wide 
  as 
  the 
  abdomen; 
  vertex 
  and 
  oc- 
  

   ciput 
  with 
  dense 
  impressed 
  reticulation, 
  a 
  little 
  roughened 
  medially; 
  

   frons 
  superiorly 
  irregularly 
  striatopunctate, 
  pubescent, 
  with 
  a 
  median 
  

   carina 
  to 
  anterior 
  ocellus, 
  polished 
  medially 
  below; 
  thorax 
  about 
  as 
  

   wide 
  as 
  long; 
  mesonotum 
  roughened, 
  scaly-punctate, 
  the 
  sculpture 
  

   somewhat 
  stronger 
  posteriorly 
  ; 
  parapsidal 
  grooves 
  complete 
  but 
  some- 
  

   what 
  irregular 
  anteriorly; 
  scutellum 
  rather 
  thickly 
  pubescent, 
  scaly- 
  

   punctate 
  anteriorly; 
  metanotal 
  spine 
  short, 
  acute 
  at 
  apex, 
  its 
  upper 
  

   surface 
  excavated; 
  wings 
  pale 
  fuscous, 
  extending 
  very 
  little 
  past 
  the 
  

   apex 
  of 
  the 
  abdomen; 
  petiole 
  1.55 
  times 
  as 
  wide 
  as 
  long, 
  with 
  a 
  number 
  

   of 
  deep 
  longitudinal 
  grooves, 
  with 
  a 
  slight 
  constriction 
  just 
  before 
  the 
  

   middle; 
  second 
  tergite 
  1.35 
  times 
  as 
  wide 
  as 
  long, 
  1.55 
  times 
  as 
  long 
  as 
  

   the 
  petiole, 
  with 
  a 
  number 
  of 
  deep 
  grooves 
  which 
  extend 
  medially 
  to 
  

   apical 
  thhd; 
  the 
  ridges 
  dividing 
  these 
  grooves 
  are 
  parallel 
  or 
  diverge 
  

   slightly 
  posteriorly; 
  third 
  tergite 
  1.45 
  times 
  as 
  wide 
  as 
  long, 
  2.2 
  times 
  

   as 
  long 
  as 
  the 
  second, 
  smooth, 
  without 
  sculpture; 
  abdomen 
  finely 
  

   pubescent 
  except 
  a 
  broad 
  median 
  area 
  from 
  base 
  to 
  middle 
  of 
  the 
  thu'd 
  

   tergite; 
  black; 
  legs 
  reddish 
  brown 
  (except 
  black 
  coxae), 
  the 
  anterior 
  

   femora, 
  tibiae, 
  and 
  apical 
  joints 
  of 
  all 
  tarsi 
  darker. 
  

  

  Type 
  locality. 
  — 
  Hollyburn, 
  British 
  Columbia. 
  

  

  Type.— 
  V.S.N. 
  M. 
  No. 
  57790. 
  

  

  Two 
  specimens 
  collected 
  August 
  28, 
  1929 
  (paratype), 
  and 
  August 
  

   27, 
  1930, 
  by 
  Oscar 
  Wliittaker. 
  

  

  Paratype 
  in 
  Whittaker 
  collection. 
  

  

  This 
  species 
  may 
  be 
  the 
  opposite 
  sex 
  of 
  lionotus. 
  Although 
  showing 
  

   difi'erences 
  I 
  would 
  not 
  hesitate 
  to 
  consider 
  specific 
  if 
  they 
  belonged 
  

   to 
  the 
  same 
  sex, 
  their 
  general 
  appearance 
  which 
  is 
  very 
  similar, 
  their 
  

   similarity 
  in 
  size, 
  and 
  the 
  identical 
  sculpture 
  of 
  the 
  petiole 
  and 
  second 
  

   tergite 
  make 
  me 
  doubtful 
  whether 
  they 
  are 
  really 
  distinct. 
  

  

  (29) 
  TRIMORUS 
  IMPROCERUS. 
  new 
  species 
  

  

  Female. 
  — 
  Length 
  0.95 
  mm. 
  Head 
  about 
  twice 
  as 
  wide 
  as 
  long, 
  

   slightly 
  wider 
  than 
  the 
  thorax, 
  about 
  as 
  vride 
  as 
  the 
  abdomen; 
  occiput 
  

   finely 
  reticulate; 
  vertex 
  and 
  frons 
  smooth, 
  without 
  sculpture 
  except 
  

   for 
  a 
  fine 
  median 
  carina 
  on 
  the 
  frons, 
  this 
  carina 
  stronger 
  toward 
  the 
  

   bases 
  of 
  the 
  antennae, 
  gradually 
  vanishing 
  toward 
  the 
  anterior 
  ocellus; 
  

   mesonotum 
  pubescent, 
  with 
  a 
  very 
  fine 
  scaly-reticulate 
  sculpture; 
  

   parapsidal 
  grooves 
  complete, 
  famt 
  anteriorly, 
  deeper 
  and 
  broader 
  

   posteriorly; 
  scutellum 
  polished, 
  without 
  distinct 
  sculpture; 
  spine 
  on 
  

   metanotum 
  short, 
  triangular, 
  acute 
  apically; 
  wings 
  extending 
  a 
  third 
  

  

  