﻿WASPS 
  OF 
  GENUS 
  TRIMORUS 
  — 
  FOUTS 
  135 
  

  

  deep 
  longitudinal 
  grooves 
  on 
  anterior 
  half; 
  the 
  grooves 
  are 
  narrowed 
  

   to 
  points 
  apically 
  and 
  their 
  edges 
  are 
  clear 
  and 
  sharp; 
  the 
  grooves 
  

   are 
  moreover 
  not 
  branched 
  or 
  divided, 
  each 
  one 
  is 
  distinct 
  from 
  every 
  

   other 
  one; 
  third 
  tergite 
  1.4 
  times 
  as 
  wide 
  as 
  long, 
  delicately 
  reticulate; 
  

   black; 
  legs 
  dark 
  brown, 
  the 
  trochanters 
  lighter; 
  wings 
  hyaline. 
  

  

  Type 
  locality. 
  —Glen 
  Echo, 
  Md. 
  (August 
  14, 
  1916.) 
  

  

  Type.— 
  V.S.N. 
  M. 
  No. 
  57807. 
  

  

  Paratype 
  Zoca/iifies.— 
  Washington, 
  D. 
  C. 
  (August 
  14, 
  1917), 
  and 
  

   Brownwood, 
  Tex. 
  (April 
  20, 
  1924), 
  Pecan 
  Bayou. 
  

  

  Three 
  females 
  collected 
  by 
  the 
  author 
  on 
  the 
  dates 
  and 
  at 
  the 
  local- 
  

   ities 
  indicated 
  above. 
  The 
  paratype 
  from 
  Washington 
  was 
  collected 
  

   on 
  lawn 
  grass. 
  

  

  Paratype 
  in 
  Whittaker 
  collection, 
  0.77 
  mm. 
  in 
  length. 
  

  

  (65) 
  TRIMORUS 
  PUNCTIGER. 
  new 
  species 
  

  

  Female.- 
  — 
  Length 
  1.80 
  mm. 
  Head 
  about 
  as 
  wide 
  as 
  the 
  thorax, 
  as 
  

   wide 
  as 
  the 
  abdomen; 
  occiput 
  shining, 
  very 
  faintly 
  reticulate; 
  an 
  area 
  

   behmd 
  each 
  lateral 
  ocellus 
  impressed-reticulate 
  ; 
  frons 
  smooth, 
  sparsely 
  

   punctate 
  on 
  upper 
  half, 
  striate 
  below 
  and 
  on 
  the 
  sides; 
  the 
  striae 
  

   become 
  gradually 
  less 
  numerous 
  as 
  they 
  approach 
  the 
  upper 
  frons 
  and 
  

   vanish 
  just 
  above 
  the 
  middle 
  of 
  the 
  eyes; 
  the 
  usual 
  carina 
  on 
  the 
  frons 
  

   is 
  represented 
  only 
  by 
  a 
  short 
  and 
  famt 
  suture 
  in 
  the 
  middle 
  of 
  the 
  

   frons; 
  thorax 
  a 
  little 
  longer 
  than 
  wide; 
  mesonotum 
  punctate 
  except 
  

   posteriorly, 
  the 
  punctures 
  rather 
  large 
  and 
  shallow, 
  more 
  than 
  their 
  

   diameter 
  distant 
  from 
  one 
  another; 
  posteriorly 
  the 
  mesonotum 
  is 
  

   coarsely 
  reticulate, 
  the 
  areas 
  large 
  and 
  elongate 
  anteroposteriorly 
  ; 
  

   parapsidal 
  grooves 
  short, 
  quickly 
  lost 
  in 
  the 
  coarse 
  reticulation; 
  

   scutellum 
  coarsely 
  reticulate 
  like 
  the 
  posterior 
  part 
  of 
  the 
  mesonotum 
  ; 
  

   spine 
  on 
  metanotum 
  in 
  the 
  form 
  of 
  a 
  broad, 
  roughly 
  sculptured 
  plate 
  

   with 
  a 
  little 
  rounded 
  nipple 
  at 
  its 
  apex; 
  lateral 
  angles 
  of 
  propodeum 
  

   prominent, 
  acute; 
  wings 
  extending 
  slightly 
  past 
  the 
  apex 
  of 
  the 
  abdo- 
  

   men, 
  faintly 
  brownish 
  in 
  color; 
  abdomen 
  a 
  little 
  more 
  than 
  one 
  and 
  

   one-half 
  times 
  as 
  long 
  as 
  wide; 
  petiole 
  1.1 
  times 
  as 
  wide 
  as 
  long, 
  with 
  

   about 
  a 
  dozen 
  strong 
  longitudinal 
  ridges, 
  the 
  intervening 
  grooves 
  

   wrinlded; 
  there 
  is 
  no 
  smooth 
  area 
  along 
  the 
  apical 
  margin 
  of 
  the 
  seg- 
  

   ment 
  as 
  is 
  usual, 
  the 
  ridges 
  attaining 
  the 
  extreme 
  edge; 
  second 
  tergite 
  

   two 
  and 
  one-half 
  times 
  as 
  wide 
  as 
  long, 
  as 
  long 
  as 
  the 
  petiole, 
  

   with 
  numerous 
  longitudinal 
  ridges 
  which 
  extend 
  to 
  the 
  apical 
  fourth 
  

   of 
  the 
  segment, 
  the 
  intervening 
  grooves 
  shallow, 
  somewhat 
  narrower 
  

   than 
  those 
  on 
  the 
  petiole; 
  third 
  tergite 
  1.3 
  times 
  as 
  wide 
  as 
  long, 
  3.1 
  

   times 
  as 
  long 
  as 
  the 
  second, 
  closely 
  impressed-reticulate, 
  anteriorly 
  

   finely 
  longitudinally 
  wrinkled; 
  no 
  pubescence 
  except 
  sparsely 
  on 
  the 
  

   sides; 
  black; 
  legs 
  reddish 
  brown; 
  coxae 
  dark 
  brown; 
  scape 
  at 
  base 
  

   brownish. 
  

  

  Type 
  locality.- 
  — 
  Glen 
  Echo, 
  Md. 
  

  

  