﻿140 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol. 
  98 
  

  

  (72) 
  TRIMORUS 
  PULCHELLUS, 
  new 
  species 
  

  

  Female. 
  — 
  Length 
  1 
  .56 
  mm. 
  Head 
  about 
  twice 
  as 
  wide 
  as 
  long, 
  about 
  

   as 
  wide 
  as 
  the 
  abdomen, 
  very 
  httle 
  wider 
  than 
  the 
  thorax; 
  vertex 
  and 
  

   occiput 
  with 
  impressed 
  reticulation; 
  frons 
  smooth, 
  with 
  a 
  few 
  minute 
  

   scattered 
  punctures 
  on 
  upper 
  half; 
  below 
  and 
  on 
  the 
  sides 
  the 
  

   frons 
  is 
  striate; 
  median 
  carina 
  on 
  frons 
  inconspicuous 
  and 
  not 
  present 
  

   on 
  upper 
  half; 
  thorax 
  about 
  as 
  wide 
  as 
  long; 
  parapsidal 
  grooves 
  not 
  

   present 
  or 
  obscured 
  by 
  the 
  heavy 
  wrinkles 
  on 
  the 
  mesonotum; 
  meso- 
  

   notum 
  on 
  anterior 
  half 
  scaly- 
  improssed-reticulate, 
  the 
  areas 
  very 
  

   small; 
  posterior 
  half 
  of 
  mesonotum 
  with 
  heavy 
  irregular 
  wrinkles, 
  not 
  

   reticulate; 
  scutellum 
  densely 
  impressed-reticulate, 
  the 
  areas 
  very 
  

   small, 
  about 
  the 
  size 
  of 
  those 
  on 
  the 
  anterior 
  half 
  of 
  the 
  mesonotum; 
  

   spine 
  on 
  metanotum 
  very 
  short, 
  lamelliform, 
  broadly 
  rounded 
  pos- 
  

   teriorly; 
  posterior 
  angles 
  of 
  propodeum 
  projecting 
  slightly, 
  acute; 
  

   wings 
  brownish, 
  reaching 
  the 
  apex 
  of 
  the 
  abdomen; 
  abdomen 
  not 
  

   quite 
  twice 
  as 
  long 
  as 
  wide; 
  petiole 
  about 
  as 
  long 
  as 
  Avide, 
  distinctly 
  

   but 
  not 
  greatly 
  elevated 
  anteriorly, 
  with 
  about 
  12 
  longitudinal 
  grooves 
  

   its 
  entire 
  length; 
  second 
  tergite 
  1.3 
  times 
  as 
  wide 
  as 
  long, 
  a 
  little 
  

   longer 
  than 
  the 
  petiole, 
  with 
  about 
  12 
  longitudinal 
  ridges 
  nearly 
  

   reaching 
  the 
  posterior 
  margin; 
  the 
  intervening 
  grooves 
  are 
  flat, 
  shal- 
  

   low, 
  with 
  approximately 
  parallel 
  sides; 
  third 
  tergite 
  1.2 
  times 
  as 
  

   wide 
  as 
  long, 
  2.3 
  times 
  as 
  long 
  as 
  the 
  second, 
  impressed-reticulate, 
  

   more 
  strongly 
  so 
  anteriorly; 
  pubescence 
  on 
  third 
  tergite 
  sparse, 
  

   present 
  only 
  laterally 
  and 
  posteriorly; 
  black; 
  knees, 
  tibiae 
  apically, 
  

   and 
  tarsi, 
  except 
  distal 
  joints, 
  reddish 
  brown. 
  

  

  Type 
  locality. 
  — 
  Chilliwack, 
  British 
  Columbia. 
  

  

  T^/pe.— 
  U.S.N.M. 
  No. 
  57812. 
  

  

  Two 
  specimens 
  collected 
  April 
  1, 
  1926, 
  and 
  June 
  12, 
  1927, 
  by 
  Oscar 
  

   Whittaker. 
  

  

  Paratype 
  in 
  Whittaker 
  collection, 
  

  

  (73) 
  TRIMORUS 
  VINCTUS. 
  new 
  name 
  

  

  Hoplogryon 
  similis 
  Fouts, 
  Proc. 
  Ent. 
  Soc. 
  Washington, 
  vol. 
  26, 
  p. 
  160, 
  1924. 
  

  

  The 
  name 
  similis 
  is 
  preoccupied 
  in 
  Trimorus 
  by 
  similis 
  Thomson 
  

   (described 
  in 
  Prosacantha 
  in 
  1859). 
  

   Type 
  locality.— 
  Ames, 
  Iowa. 
  

   Type.—V.S.IS^.M. 
  No. 
  26833. 
  

  

  (74) 
  TRIMORUS 
  MONTICOLA. 
  new 
  species 
  

  

  Female. 
  — 
  Length 
  0.88 
  mm. 
  Head 
  a 
  little 
  wider 
  than 
  the 
  thorax; 
  

   vertex 
  smooth; 
  occiput 
  apparently 
  delicately 
  reticulate; 
  frons 
  smooth, 
  

   without 
  sculpture 
  except 
  a 
  few 
  fine 
  striae 
  below 
  on 
  the 
  sides; 
  median 
  

   carina 
  on 
  frons 
  not 
  extending 
  past 
  the 
  middle; 
  thorax 
  about 
  as 
  wide 
  

   as 
  long, 
  as 
  wide 
  as 
  the 
  abdomen; 
  mesonotum 
  and 
  scutellum 
  pubescent, 
  

   the 
  hairs 
  obscuring 
  the 
  very 
  delicate 
  sculpture; 
  parapsidal 
  grooves 
  

  

  