﻿136 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol. 
  es 
  

  

  Type— 
  U.S. 
  'NM. 
  No. 
  57808. 
  

   One 
  specimen 
  collected 
  by 
  the 
  author. 
  

  

  A 
  remarkable 
  species, 
  easUy 
  separated 
  by 
  many 
  characters 
  from 
  any 
  

   species 
  loiown 
  to 
  me. 
  

  

  (66) 
  TRIMORUS 
  NANUS 
  (Ashmead) 
  

  

  Prosacantha 
  nana 
  Ashmead, 
  U. 
  S. 
  Nat. 
  Mus. 
  Bull. 
  45, 
  p. 
  191, 
  1893 
  (female). 
  

   Hoplogryon 
  nanus, 
  Kieffer, 
  Genera 
  insectorum, 
  fasc. 
  SOB, 
  p. 
  95, 
  1910; 
  Das 
  

   Tierreich, 
  Lief. 
  48, 
  p. 
  229, 
  1926. 
  

  

  Type 
  locality. 
  — 
  Utah 
  Lake, 
  Utah. 
  

  

  T?/i?e.— 
  U.S.N. 
  M. 
  No. 
  24501. 
  

  

  Originally 
  described 
  from 
  a 
  single 
  female 
  specimen. 
  

  

  (67) 
  TRIMORUS 
  LONGIPENNIS 
  (Ashmead) 
  

  

  Hoplogryon 
  longipennis 
  Ashmead, 
  U. 
  S. 
  Nat. 
  Mus. 
  Bull. 
  45, 
  p. 
  202, 
  pi. 
  8, 
  fig. 
  6, 
  

   1893 
  (female). 
  — 
  Harrington, 
  Trans. 
  Roy. 
  Soc. 
  Canada, 
  ser. 
  2, 
  vol. 
  5, 
  sect. 
  

   4, 
  p. 
  184, 
  1899 
  (male). 
  — 
  Brues, 
  Genera 
  insectorum, 
  fasc. 
  80, 
  p. 
  25, 
  1908. 
  — 
  - 
  

   Kieffer, 
  Genera 
  insectorum, 
  fasc. 
  SOB, 
  p. 
  97, 
  1910; 
  Das 
  Tierreich, 
  Lief. 
  48, 
  

   p. 
  217, 
  1926 
  (male, 
  female). 
  

  

  Prosacantha 
  laevifrons 
  Ashmead, 
  U. 
  S. 
  Nat. 
  Mus. 
  Bull. 
  45, 
  p. 
  190, 
  1893 
  (female). 
  

  

  Hoplogrrjon 
  pteridis 
  Ashmead, 
  ibid., 
  p. 
  203 
  (female). 
  — 
  Brues, 
  Genera 
  insectorum, 
  

   fasc. 
  SO, 
  p. 
  25, 
  1908. 
  — 
  Kieffer, 
  Genera 
  insectorum, 
  fasc. 
  SOB, 
  p. 
  97, 
  1910; 
  

   Das 
  Tierreich, 
  Lief. 
  48, 
  p. 
  216, 
  1926 
  (female). 
  

  

  Prosacantha 
  levis 
  Dalla 
  Torre, 
  Catalogus 
  hymenopterorum, 
  vol. 
  5, 
  p. 
  507, 
  

   1898. 
  — 
  Brues, 
  Genera 
  insectorum, 
  fasc. 
  80, 
  p. 
  22, 
  1908. 
  

  

  Hoplogryon 
  levis, 
  Kieffer, 
  Genera 
  insectorum, 
  fasc. 
  SOB, 
  p. 
  95, 
  1910; 
  Das 
  Tier- 
  

   reich, 
  Lief. 
  48, 
  p. 
  229, 
  1926 
  (female). 
  

  

  Female.- 
  — 
  Length 
  0.97 
  mm. 
  Head 
  a 
  little 
  over 
  twice 
  as 
  wide 
  as 
  

   long, 
  as 
  wide 
  as 
  the 
  thorax; 
  upper 
  part 
  of 
  frons, 
  vertex, 
  and 
  occiput 
  

   with 
  dense 
  impressed 
  reticulation, 
  beadlike 
  in 
  appearance; 
  low^er 
  

   frons 
  medially 
  smooth, 
  without 
  sculpture 
  except 
  a 
  delicate 
  impression 
  

   to 
  anterior 
  ocellus; 
  frons 
  laterally 
  reticulate; 
  clypeus, 
  lower 
  frons 
  

   laterally, 
  and 
  malar 
  area, 
  striate; 
  thorax 
  a 
  little 
  wider 
  than 
  long, 
  

   decidedly 
  flattened 
  above, 
  as 
  wide 
  as 
  the 
  abdomen; 
  mesonotum 
  closely 
  

   scaly 
  reticulate, 
  the 
  sculpture 
  strong, 
  with 
  short 
  parapsidal 
  grooves 
  

   posteriorly; 
  scutellum 
  with 
  sculpture 
  which 
  is 
  similar 
  to, 
  but 
  more 
  

   delicate 
  than, 
  that 
  on 
  the 
  mesonotum; 
  metanotal 
  spine 
  short, 
  acute; 
  

   wings 
  subhyaline, 
  extending 
  a 
  little 
  past 
  the 
  apex 
  of 
  the 
  abdomen; 
  

   abdomen 
  one 
  and 
  one-fourth 
  times 
  as 
  long 
  as 
  wide, 
  broadly 
  ovate, 
  

   rounded 
  posteriorly; 
  petiole 
  about 
  twice 
  as 
  wide 
  as 
  long, 
  without 
  a 
  

   transverse 
  depression 
  and 
  with 
  the 
  anterior 
  margin 
  not 
  reflexed; 
  

   second 
  tergite 
  a 
  little 
  more 
  than 
  twice 
  as 
  wide 
  as 
  long, 
  with 
  numerous 
  

   parallel 
  ridges 
  to 
  apical 
  fourth; 
  third 
  tergite 
  1.5 
  times 
  as 
  wide 
  as 
  long, 
  

   with 
  uniform 
  close 
  impressed 
  reticulation; 
  black; 
  scape 
  dark 
  reddish 
  

   brown; 
  legs 
  light 
  brown, 
  the 
  femora 
  and 
  tibiae 
  darker 
  brown; 
  coxae 
  

   dark 
  brown. 
  

  

  