﻿110 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol. 
  ds 
  

  

  Type 
  locality. 
  — 
  District 
  of 
  Columbia. 
  

  

  Type.—U.S.^M. 
  No. 
  24526. 
  

  

  This 
  description 
  is 
  based 
  on 
  one 
  specimen 
  fron 
  McLean, 
  N. 
  Y. 
  It 
  

   was 
  collected 
  by 
  Prof. 
  C. 
  R. 
  Crosby, 
  June 
  21, 
  1924, 
  from 
  spider 
  mate- 
  

   rial 
  by 
  sifting. 
  The 
  author's 
  1928 
  record 
  of 
  the 
  occurrence 
  of 
  this 
  

   species 
  in 
  New 
  York 
  was 
  based 
  on 
  this 
  specimen, 
  which 
  was 
  compared 
  

   with 
  the 
  type 
  of 
  Hoplogryon 
  rufipes 
  Ashmead. 
  

  

  (15) 
  TRIMORUS 
  ROBUSTUS, 
  new 
  species 
  

  

  Female. 
  — 
  Length 
  1.42 
  mm. 
  Head 
  twice 
  as 
  wide 
  as 
  long, 
  about 
  one 
  

   and 
  one-sLxth 
  times 
  as 
  wide 
  as 
  the 
  thorax, 
  about 
  half 
  as 
  long 
  as 
  the 
  

   thorax; 
  occiput, 
  vertex, 
  and 
  upper 
  half 
  of 
  frons 
  with 
  dense 
  impressed 
  

   reticulation, 
  the 
  latter 
  area 
  with 
  a 
  number 
  of 
  small 
  scattered 
  punc- 
  

   tures; 
  median 
  carina 
  not 
  evident 
  above 
  middle 
  of 
  frons; 
  frons 
  narrowly 
  

   laterally 
  reticulate, 
  with 
  fine 
  Avavy 
  aciculae 
  medially, 
  striate 
  below; 
  

   thorax 
  a 
  little 
  longer 
  than 
  wide; 
  mcsonotum 
  and 
  scutellum 
  scaly 
  

   reticulate, 
  evenly 
  pubescent; 
  parapsidal 
  grooves 
  absent; 
  spine 
  on 
  

   metanotum 
  sharp 
  and 
  moderately 
  long; 
  wings 
  extending 
  to 
  the 
  apex 
  

   of 
  the 
  propodeum, 
  very 
  narrow, 
  the 
  venation 
  not 
  discernible; 
  lateral 
  

   angles 
  of 
  propodeum 
  projecting, 
  subacute; 
  abdomen 
  about 
  one 
  and 
  

   one-half 
  times 
  as 
  long 
  as 
  wide, 
  a 
  little 
  wider 
  than 
  the 
  head, 
  one 
  and 
  

   three-fourths 
  times 
  as 
  long 
  as 
  the 
  thorax; 
  petiole 
  1.45 
  times 
  as 
  wide 
  

   as 
  long, 
  with 
  about 
  ten 
  deep 
  grooves 
  extending 
  from 
  the 
  anterior 
  

   margin 
  to 
  the 
  posterior 
  one-tenth, 
  not 
  elevated 
  anteriorly 
  and 
  without 
  

   a 
  transverse 
  depression; 
  second 
  tergite 
  1.7 
  times 
  as 
  wide 
  as 
  long, 
  1.7 
  

   times 
  as 
  long 
  as 
  the 
  petiole, 
  with 
  a 
  number 
  of 
  deep 
  longitudinal 
  grooves 
  

   which 
  are 
  shorter 
  toward 
  the 
  lateral 
  margins 
  of 
  the 
  segment, 
  becoming 
  

   lost 
  in 
  a 
  moderately 
  strong 
  impressed-reticulate 
  sculpture; 
  five 
  of 
  the 
  

   grooves, 
  each 
  of 
  which 
  is 
  about 
  twice 
  as 
  wide 
  as 
  any 
  on 
  the 
  petiole, 
  

   extending 
  nearly 
  to 
  the 
  apex 
  of 
  the 
  tergite; 
  third 
  tergite 
  1.4 
  times 
  as 
  

   wide 
  as 
  long, 
  2.2 
  times 
  as 
  long 
  as 
  the 
  second, 
  smoothly 
  reticulate, 
  

   the 
  enclosed 
  areas 
  fairly 
  large, 
  becoming 
  considerably 
  smaller 
  posteri- 
  

   orly; 
  black; 
  knees 
  and 
  anterior 
  tibiae 
  apically, 
  yellowish 
  brown; 
  

   tarsi 
  brownish. 
  

  

  Type 
  locality. 
  — 
  Chilliwack, 
  British 
  Columbia. 
  

  

  Type.— 
  V.S.N. 
  U. 
  No. 
  57781. 
  

  

  Two 
  specimens 
  collected 
  September 
  26, 
  1926, 
  and 
  September 
  9, 
  

   1927 
  by 
  Oscar 
  Whittaker. 
  

  

  Para 
  type 
  in 
  Wliittaker 
  collection. 
  

  

  (16) 
  TRIMORUS 
  FINITIMUS. 
  new 
  species 
  

  

  Female. 
  — 
  Length 
  1.18 
  mm. 
  Head 
  twice 
  as 
  wide 
  as 
  long, 
  a 
  little 
  

   wider 
  than 
  the 
  thorax, 
  about 
  as 
  wide 
  as 
  the 
  abdomen, 
  moderately 
  con- 
  

   vex 
  in 
  front, 
  scarcely 
  excavated 
  behind; 
  upper 
  frons, 
  vertex, 
  and 
  

   occiput 
  impressed-reticulate; 
  a 
  fine 
  median 
  carina 
  to 
  anterior 
  ocellus; 
  

   frons 
  narrowly 
  laterally 
  reticulate, 
  below 
  smooth, 
  without 
  sculptiu-e; 
  

  

  