﻿142 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol.98 
  

  

  (7C) 
  TRIMORUS 
  MINOR, 
  new 
  species 
  

  

  Female.- 
  — 
  Longth 
  1.50 
  mm. 
  Head 
  about 
  two 
  and 
  one-fourth 
  times 
  

   as 
  wide 
  as 
  long, 
  as 
  wide 
  as 
  the 
  thorax, 
  about 
  as 
  wide 
  as 
  tlie 
  abdomen; 
  

   occiput 
  reticulate; 
  vertex 
  smooth; 
  frons 
  mostly 
  sm^ooth, 
  without 
  

   sculpture, 
  striate 
  just 
  above 
  the 
  antennae 
  and 
  a 
  spot 
  on 
  each 
  side 
  

   at 
  about 
  the 
  middle 
  of 
  the 
  eyes 
  reticulate; 
  thorax 
  a 
  little 
  wider 
  than 
  

   long; 
  mesonotum 
  rather 
  delicately 
  scaly-reticulate, 
  without 
  a 
  trace 
  

   of 
  parapsidal 
  grooves; 
  scutellum 
  smooth, 
  with 
  a 
  fine 
  scal^- 
  reticulation 
  

   anteriorly; 
  spine 
  on 
  metanotum 
  long, 
  sharp, 
  nearly 
  as 
  long 
  as 
  the 
  

   petiole; 
  lateral 
  angles 
  of 
  propodeum 
  projecting 
  slightly, 
  acute; 
  wings 
  

   hyaline, 
  extending 
  about 
  one-seventh 
  the 
  length 
  of 
  the 
  abdomen 
  

   past 
  the 
  latter's 
  apex; 
  abdomen 
  one 
  and 
  three-fourths 
  times 
  as 
  long 
  

   as 
  wide, 
  nearly 
  1.9 
  times 
  as 
  long 
  as 
  the 
  thorax; 
  petiole 
  about 
  as 
  long 
  

   as 
  wide, 
  not 
  distinctly 
  elevated 
  anteriorly, 
  the 
  grooves 
  not 
  reaching 
  

   the 
  anterior 
  margin 
  medially; 
  posterior 
  fifth 
  of 
  the 
  petiole 
  smooth, 
  

   without 
  sculpture; 
  second 
  tergite 
  1.5 
  times 
  as 
  wide 
  as 
  long, 
  1.6 
  times 
  

   as 
  long 
  as 
  the 
  petiole, 
  traversed 
  on 
  basal 
  three-fomlhs 
  by 
  numerous 
  

   deep 
  longitudinal 
  grooves; 
  the 
  intervening 
  ridges 
  are 
  flattened 
  dor- 
  

   sally 
  and 
  become 
  wider 
  posteriorly; 
  the 
  upper 
  edges 
  of 
  these 
  ridges 
  are 
  

   on 
  a 
  level 
  with 
  the 
  smooth 
  surface 
  behind 
  them; 
  third 
  tergite 
  1.4 
  

   times 
  as 
  wide 
  as 
  long, 
  twice 
  as 
  long 
  as 
  the 
  second, 
  uniformly 
  finely 
  

   reticulate, 
  the 
  areas 
  moderately 
  large; 
  third 
  tergite 
  pubescent 
  only 
  

   laterally, 
  polished 
  along 
  the 
  posterior 
  margin; 
  black; 
  coxae 
  dark 
  

   brown; 
  legs 
  mostly 
  light 
  brownish. 
  

  

  Type 
  locality. 
  — 
  Rosslyn, 
  Va. 
  

  

  r^i>e.— 
  U.S.N.M. 
  No. 
  57815. 
  

  

  One 
  specimen 
  collected 
  on 
  June 
  8 
  by 
  the 
  author. 
  

  

  (77) 
  TRIMORUS 
  MELANOPUS 
  (Ashmead) 
  

  

  Prosacantha 
  melanopus 
  Ashmead, 
  U. 
  S. 
  Nat. 
  r^Ius. 
  Bull. 
  45, 
  p. 
  189, 
  1893 
  (female). 
  — 
  

  

  Brues, 
  Genera 
  insectorum, 
  fa^c. 
  80, 
  p. 
  22, 
  1908. 
  

   Hoplogryon 
  melanopus, 
  Kxeffer, 
  Genera 
  insectorum, 
  fasc. 
  80B, 
  p. 
  95, 
  1910; 
  Das 
  

  

  Tierreich, 
  Lief. 
  48, 
  p. 
  228, 
  1926 
  (female). 
  

  

  Female. 
  — 
  Length 
  1.47 
  mm. 
  Head 
  twice 
  as 
  wide 
  as 
  long, 
  slightly 
  

   wider 
  than 
  the 
  thorax, 
  the 
  latter 
  as 
  wide 
  as 
  the 
  abdomen; 
  frons 
  

   striate 
  below, 
  reticulate 
  except 
  medially 
  below, 
  less 
  strongly 
  reticulate 
  

   medially 
  on 
  the 
  sides, 
  the 
  reticulation 
  impressed 
  below 
  on 
  the 
  sides 
  

   and 
  above; 
  vertex 
  and 
  occiput 
  impressed, 
  the 
  sculpture 
  beadiike; 
  

   frons 
  with 
  a 
  median 
  carina 
  nearly 
  to 
  anterior 
  ocellus, 
  the 
  carina 
  re- 
  

   placed 
  hj 
  a 
  thin 
  line 
  just 
  below 
  the 
  ocellus; 
  thorax 
  as 
  wide 
  as 
  long, 
  

   strongly 
  convex 
  dorsally 
  ; 
  mesonotum 
  and 
  scutellum 
  evenly 
  pubescent, 
  

   finely 
  scaly-reticulate; 
  parapsidal 
  grooves 
  on 
  posterior 
  third, 
  indis- 
  

   tinct; 
  metanotal 
  spine 
  triangular 
  viewed 
  from 
  above, 
  acute 
  apically, 
  

   about 
  half 
  as 
  long 
  as 
  the 
  scutellum; 
  lateral 
  angles 
  of 
  propodeum 
  pro- 
  

   jecting 
  slightly, 
  blunt 
  apically; 
  wings 
  tinged 
  with 
  brown, 
  reaching 
  

  

  