﻿122 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol.98 
  

  

  punctures; 
  frons 
  laterally 
  striate 
  to 
  top 
  of 
  eye; 
  occipute 
  shining, 
  indis- 
  

   tinctly 
  transversely 
  aciculate; 
  thorax 
  scarcely 
  longer 
  than 
  wide, 
  as 
  

   wide 
  as 
  the 
  abdomen; 
  mesonotum 
  coarsely 
  punctate, 
  the 
  punctures 
  

   arranged 
  in 
  more 
  or 
  less 
  distinct 
  rows 
  posteriorly; 
  scutellum 
  punctate 
  

   like 
  the 
  anterior 
  part 
  of 
  the 
  mesonotum, 
  with 
  a 
  small 
  median 
  polished 
  

   area 
  posteriorly; 
  metanotal 
  spine 
  long, 
  acute 
  at 
  apex, 
  broad 
  basally; 
  

   abdomen 
  1.8 
  times 
  as 
  long 
  as 
  wide; 
  petiole 
  about 
  as 
  long 
  as 
  wide, 
  with 
  

   numerous 
  longitudinal 
  ridges 
  extending 
  the 
  entire 
  length 
  of 
  the 
  seg- 
  

   ment, 
  without 
  a 
  transverse 
  depression, 
  and 
  without 
  the 
  anterior 
  

   margin 
  reflexed; 
  second 
  tcrgite 
  about 
  one 
  and 
  one-fourth 
  times 
  as 
  

   long 
  as 
  the 
  petiole, 
  slightly 
  wider 
  than 
  long, 
  with 
  numerous 
  parallel 
  or 
  

   slightly 
  diverging 
  ridges 
  which 
  nearly 
  reach 
  the 
  apex; 
  all 
  of 
  these 
  

   ridges 
  extend 
  equally 
  far 
  posteriorly, 
  leaving 
  a 
  narrow 
  polished 
  border 
  

   behind 
  them; 
  third 
  tergite 
  1.4 
  times 
  as 
  wide 
  as 
  long, 
  twice 
  as 
  long 
  as 
  

   the 
  second, 
  strongly 
  striate 
  medially, 
  the 
  striae 
  extending 
  nearly 
  to 
  the 
  

   apex, 
  on 
  lateral 
  third 
  irregularly 
  striate 
  with 
  large 
  scattered 
  punc- 
  

   tures; 
  a 
  row 
  of 
  small 
  setigerous 
  punctures 
  limits 
  the 
  extension 
  of 
  the 
  

   striae 
  posteriorly; 
  fourth 
  tergite 
  punctate, 
  reticulate 
  anteriorly; 
  wings 
  

   reaching 
  the 
  tip 
  of 
  the 
  abdomen; 
  black; 
  scape 
  brown 
  proximad, 
  

   fuscous 
  on 
  distal 
  two-thirds; 
  pedicel 
  fuscous, 
  brown 
  at 
  extreme 
  apex; 
  

   mandibles 
  and 
  legs 
  reddish 
  brown. 
  

  

  Type 
  locality. 
  — 
  Oakland, 
  Md. 
  

  

  Tt/^w.— 
  U.S.N.M. 
  No. 
  24505. 
  

  

  Other 
  localities. 
  — 
  Washington, 
  D. 
  C, 
  and 
  Cabin 
  John, 
  Md. 
  

  

  Species 
  redescribed 
  from 
  two 
  female 
  specimens 
  collected 
  by 
  the 
  

   author 
  at 
  Washington, 
  June 
  25, 
  1920, 
  and 
  Cabin 
  John, 
  Md., 
  July 
  14, 
  

   1917. 
  The 
  Washington 
  specimen 
  was 
  collected 
  in 
  a 
  low, 
  rather 
  

   swampy 
  place 
  in 
  the 
  Soldiers' 
  Home 
  Park. 
  Both 
  specimens 
  were 
  

   compared 
  with 
  the 
  type 
  in 
  the 
  National 
  Museum. 
  

  

  (33) 
  TRIRIOEUS 
  STRIATIFRONS 
  (Ashmead) 
  

  

  Prosacantha 
  striatifrons 
  Ashmead, 
  U. 
  S. 
  Nat. 
  Mus. 
  Bull. 
  45, 
  p. 
  188, 
  1893. 
  

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

  

  Type 
  locality. 
  — 
  Jacksonville, 
  Fla. 
  

   Type.— 
  U.S. 
  'N.M. 
  No. 
  24496. 
  

   Originally 
  described 
  from 
  one 
  specimen. 
  

  

  (34) 
  TRIMORUS 
  RUBRIPES 
  RUBRIPES, 
  new 
  species 
  and 
  variety 
  

  

  Male. 
  — 
  Length 
  3.25 
  mm. 
  Head 
  about 
  as 
  wide 
  as 
  the 
  thorax, 
  a 
  

   little 
  wider 
  than 
  the 
  abdomen, 
  entirely, 
  except 
  the 
  interocellar 
  area 
  

   and 
  a 
  small 
  area 
  to 
  the 
  side 
  of 
  each 
  lateral 
  ocellus, 
  covered 
  with 
  strong 
  

   carinae; 
  frons 
  with 
  a 
  strong 
  median 
  carina 
  extending 
  to 
  the 
  anterior 
  

   ocellus; 
  antenna 
  slender, 
  threadlike, 
  the 
  joints 
  very 
  gradually 
  nar- 
  

   rowing 
  toward 
  the 
  apex 
  of 
  the 
  antenna; 
  scape 
  slightly 
  longer 
  than 
  

   joints 
  2 
  and 
  3 
  combined, 
  about 
  five 
  times 
  as 
  long 
  as 
  thick; 
  

  

  