﻿124 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol. 
  68 
  

  

  (35) 
  TRIMORUS 
  KANSASENSIS 
  (Gahan) 
  

  

  Hoplogryon 
  kansasensis 
  Gahan, 
  Proc. 
  Ent. 
  Soc. 
  Washington, 
  vol. 
  14, 
  p. 
  7, 
  1912 
  

   (female); 
  U. 
  S. 
  Dept. 
  Agr. 
  Misc. 
  Publ. 
  174, 
  p. 
  146, 
  1933. 
  

  

  Tyj>e 
  locality.— 
  M&n\mtt&n, 
  Kans. 
  

  

  Type.— 
  V.S.N. 
  M. 
  No. 
  14354. 
  

  

  This 
  species 
  was 
  described 
  from 
  a 
  specimen 
  obtained 
  from 
  a 
  cage 
  

   in 
  which 
  experiments 
  with 
  the 
  Hessian 
  fly 
  were 
  being 
  carried 
  on, 
  and 
  

   Mr. 
  Gahan 
  says 
  in 
  his 
  original 
  description 
  that 
  it 
  is 
  "possibly, 
  though 
  

   not 
  likely, 
  a 
  parasite 
  of 
  the 
  fly." 
  

  

  (36) 
  TRIMORUS 
  STRIATIVENTRIS 
  (Ashmead) 
  

  

  Prosacantha 
  striaiiventris 
  Ashmead, 
  U. 
  S. 
  Nat. 
  Mus. 
  Bull. 
  45, 
  p. 
  197, 
  1893 
  (male). 
  

   Hoplogryon 
  striaiiventris, 
  Kieffer, 
  Das 
  Tierreich, 
  Lief. 
  48, 
  p. 
  225, 
  1926. 
  

  

  Type 
  locality.- 
  — 
  District 
  of 
  Columbia. 
  

   Type.—V.S.N.M. 
  No. 
  24517. 
  

   Described 
  from 
  one 
  collected 
  specimen. 
  

  

  (37) 
  TRIMORUS 
  REPENTINUS. 
  new 
  species 
  

  

  Female. 
  — 
  Length 
  0.95 
  mm. 
  Head 
  1.8 
  times 
  as 
  wide 
  as 
  long, 
  1.2 
  

   times 
  as 
  wide 
  as 
  the 
  thorax, 
  scarcely 
  wider 
  than 
  the 
  abdomen, 
  sub- 
  

   convex 
  anteriorly: 
  frons 
  shortly 
  striate 
  below 
  on 
  the 
  sides, 
  with 
  a 
  

   fine 
  median 
  carina 
  on 
  lower 
  half, 
  otherwise 
  without 
  sculpture, 
  smooth 
  ; 
  

   vertex 
  smooth, 
  without 
  sculpture; 
  occiput 
  impressed-reticulate 
  ; 
  cheeks 
  

   aciculate; 
  thorax 
  a 
  little 
  longer 
  than 
  wide; 
  mesonotum 
  convex, 
  reticu- 
  

   late; 
  parapsidal 
  grooves 
  represented 
  by 
  short 
  broad 
  depressions 
  

   posteriorly 
  on 
  the 
  mesonotum; 
  metanotal 
  spine 
  very 
  short, 
  a 
  mere 
  

   tubercle; 
  wings 
  about 
  four 
  times 
  as 
  long 
  as 
  wide, 
  with 
  long 
  cilia 
  on 
  

   all 
  margins, 
  extending 
  nearly 
  half 
  the 
  length 
  of 
  the 
  abdomen 
  past 
  the 
  

   latter's 
  apex; 
  abdomen 
  1.6 
  times 
  as 
  long 
  as 
  wide, 
  1.6 
  times 
  as 
  long 
  

   as 
  the 
  thorax; 
  petiole 
  1.5 
  times 
  as 
  wide 
  as 
  long, 
  with 
  numerous 
  longi- 
  

   tudinal 
  ridges 
  extending 
  over 
  the 
  slightly 
  uptm-ned 
  anterior 
  margin 
  

   to 
  the 
  edge 
  of 
  the 
  segment; 
  second 
  tergite 
  1.4 
  times 
  as 
  wide 
  as 
  long, 
  

   1.5 
  times 
  as 
  long 
  as 
  the 
  petiole, 
  with 
  deep 
  parallel 
  grooves 
  to 
  poste- 
  

   rior 
  third; 
  the 
  ridges 
  between 
  these 
  grooves 
  are 
  flattened 
  on 
  top 
  

   and 
  widen 
  posteriorly, 
  merging 
  with 
  the 
  flat 
  polished 
  surface 
  of 
  the 
  

   segment; 
  third 
  tergite 
  1.2 
  times 
  as 
  wide 
  as 
  long, 
  2.4 
  times 
  as 
  long 
  

   as 
  the 
  second, 
  longitudinally 
  striate 
  to 
  apical 
  fifth, 
  the 
  striae 
  becom- 
  

   ing 
  finer 
  and 
  wavy 
  posteriorly; 
  dark 
  brown; 
  abdomen 
  reddish 
  brown; 
  

   legs, 
  including 
  coxae, 
  light 
  yellowish 
  brown; 
  wings 
  hyaline. 
  

  

  Type 
  locality. 
  — 
  Cabin 
  John, 
  Aid. 
  

  

  Type.— 
  V.S.N. 
  M. 
  No. 
  57796. 
  

  

  Two 
  specimens 
  collected 
  July 
  31, 
  1916, 
  and 
  June 
  30, 
  1917, 
  by 
  the 
  

   author. 
  

  

  Paratype 
  in 
  Whittaker 
  collection. 
  

  

  