﻿NO. 
  1960. 
  YALE 
  PERUVIAN 
  EXPEDITION, 
  HYMENOPTERA—ROHWER. 
  447 
  

   POLYBIA 
  BELIZENSIS 
  Cameron. 
  

  

  Two 
  workers 
  collected 
  at 
  Santa 
  Ana, 
  Peru, 
  at 
  an 
  altitude 
  of 
  3,000 
  

   feet, 
  August 
  3, 
  1911. 
  Two 
  workers 
  collected 
  at 
  Huadquina 
  at 
  an 
  

   altitude 
  of 
  5,000 
  feet, 
  August 
  1, 
  1911. 
  

  

  Genus 
  STELOPOLYBIA 
  Ducke. 
  

  

  STELOPOLYBIA 
  MERIDIONALIS 
  (von 
  Ihering). 
  

  

  One 
  worker 
  collected 
  at 
  the 
  Pampaconas 
  River, 
  Peru, 
  August, 
  1911. 
  

  

  STELOPOLYBIA 
  SULFUREOFASCLATA 
  Ducke. 
  

  

  One 
  worker 
  collected 
  at 
  San 
  Miguel, 
  Peru, 
  at 
  an 
  altitude 
  of 
  6,000 
  

   feet, 
  September 
  1, 
  1911. 
  Four 
  workers 
  collected 
  at 
  Tincochaca, 
  

   Peru, 
  at 
  an 
  altitude 
  of 
  7,000 
  feet, 
  August 
  8-10, 
  1911. 
  Two 
  workers 
  

   from 
  Paltaybamba, 
  Peru, 
  at 
  an 
  altitude 
  of 
  5,000 
  feet, 
  August 
  6, 
  7, 
  

   1911. 
  One 
  worker 
  collected 
  at 
  Tontontoy, 
  Peru, 
  at 
  an 
  altitude 
  of 
  

   7,000 
  feet, 
  July 
  23, 
  1911. 
  

  

  Genus 
  NECTARINA 
  Shuekard. 
  

   NECTARINA 
  BILINEOLATA 
  variety 
  M(EBLA.NA 
  Saussure. 
  

  

  Two 
  workers 
  collected 
  at 
  the 
  Pampaconos 
  River, 
  Peru, 
  August, 
  

   1911. 
  

  

  Family 
  THYNNID^. 
  

  

  Genus 
  PSEUDELAPHROPTERA 
  Ashmead. 
  

   PSEUDELAPHROPTERA 
  (?) 
  MAURA, 
  new 
  species. 
  

  

  This 
  species 
  runs 
  in 
  Turner's 
  table 
  to 
  the 
  genera 
  of 
  ThynnidaB 
  

   to 
  the 
  genus 
  PseudelapTiroptera 
  Ashmead, 
  but 
  there 
  are 
  a 
  number 
  of 
  

   differences 
  between 
  this 
  species 
  and 
  the 
  genotype 
  of 
  the 
  genus 
  in 
  

   question, 
  so 
  it 
  is 
  doubtful 
  whether 
  it 
  belongs 
  to 
  this 
  genus. 
  It 
  may 
  

   when 
  its 
  female 
  is 
  Imown 
  be 
  a 
  new 
  genus. 
  The 
  following 
  species 
  is 
  

   asily 
  separated 
  from 
  all 
  other 
  species 
  of 
  the 
  genus 
  Pseudelaphroj^tera 
  

   by 
  its 
  black 
  color. 
  Superficially 
  it 
  resembles 
  closely 
  ElapTiroptera 
  

   atrata. 
  

  

  Hale. 
  — 
  Length 
  12 
  mm. 
  Antennae, 
  length 
  6 
  mm. 
  Clypeus 
  strongly 
  

   convex, 
  apically 
  carina 
  te; 
  the 
  anterior 
  margin 
  raised 
  with 
  very 
  slight 
  

   shallow 
  median 
  notch; 
  dorsal 
  surface 
  of 
  the 
  clypeus 
  finely 
  punctured; 
  

   inner 
  margins 
  of 
  the 
  eyes 
  slightly 
  diverguig 
  toward 
  the 
  clypeus; 
  

   malar 
  space 
  obsolete; 
  front 
  with 
  rather 
  large 
  sparse 
  punctures, 
  the 
  

   vertex 
  has 
  the 
  punctures 
  finer 
  and 
  closer 
  ; 
  ocelliin 
  nearly 
  an 
  equilat- 
  

   eral 
  triangle 
  ; 
  latrad 
  of 
  each 
  lateral 
  ocellus 
  is 
  a 
  shallow 
  fovea 
  ; 
  antennae 
  

   slender, 
  filiform, 
  the 
  apical 
  joints 
  crenulate, 
  third 
  and 
  fourth 
  joints 
  

   subequal 
  in 
  length; 
  anterior 
  margin 
  of 
  the 
  pronotum 
  carinate 
  but 
  

   not 
  divided 
  longitudinally; 
  scutal 
  furrows 
  deep, 
  slightly 
  converging 
  

   posteriorly; 
  mesoscutum 
  shining 
  with 
  sparse, 
  distinct 
  punctures; 
  

  

  