﻿new 
  Species 
  of 
  Diplopter 
  a. 
  Ill 
  

  

  almost 
  reaching 
  to 
  the 
  apex, 
  mandibles, 
  the 
  inner 
  margin 
  of 
  

   the 
  eyes 
  (including 
  the 
  lower 
  portion 
  of 
  the 
  sinus), 
  the 
  inter- 
  

   mediate 
  coxae 
  beneath, 
  and 
  the 
  second 
  abdominal 
  sternite 
  

   pale 
  testaceous. 
  

  

  Hab. 
  Between 
  Salt 
  Lake 
  and 
  Wawamba, 
  near 
  Mount 
  

   Ruwenzori, 
  Uganda 
  (Scott 
  Elliot). 
  

  

  The 
  only 
  other 
  known 
  African 
  species 
  of 
  Polybia 
  is 
  

   P. 
  tabida, 
  F., 
  the 
  type 
  of 
  which 
  is 
  in 
  the 
  Banksian 
  Collection. 
  

  

  Megacanthopus, 
  Ducke. 
  

  

  Megacanthopus 
  pallidipectus. 
  

  

  Polybia 
  pallidipectus, 
  Smith, 
  Cat. 
  Hymen. 
  Brit. 
  Mas. 
  v. 
  p. 
  128. 
  no. 
  36 
  

   (1857). 
  

  

  Type 
  in 
  British 
  Museum. 
  

  

  Megacanthopus 
  tapuya. 
  

   Polybia 
  tapuya, 
  Sckulz, 
  Hymen. 
  Stud. 
  p. 
  133 
  (Amazons). 
  

  

  Type 
  in 
  British 
  Museum. 
  

  

  Megacanthopus 
  flavitarsis. 
  

  

  Polybia 
  flavitar 
  sis, 
  Sauss. 
  Etud. 
  fam. 
  Vespid. 
  ii. 
  p. 
  199 
  (1853) 
  (Cali- 
  

   fornia). 
  

  

  Type 
  in 
  British 
  Museum. 
  

  

  Megacanthopus 
  cubensis. 
  

  

  Polybia 
  cubensis, 
  Sauss. 
  Etud. 
  fam. 
  Vespid. 
  ii. 
  p. 
  202 
  (1853). 
  

  

  Type 
  in 
  Paris 
  Museum. 
  

  

  These 
  four 
  species 
  are 
  all 
  referable 
  to 
  Ducke's 
  genus 
  

   Megacanthopus. 
  

  

  Nectarina, 
  Shuck. 
  

  

  Nectarina 
  amazonica. 
  

   Charter 
  -y 
  nis 
  amazonicus, 
  Cam. 
  Zeitschr. 
  Hymenop.vi. 
  p. 
  380 
  (Amazonia). 
  

  

  Nectarina 
  lecheguana. 
  

  

  Nectarina 
  lecheyuana, 
  Latr. 
  Memoires 
  du 
  Museum 
  d'Histoire 
  Natu- 
  

  

  relle, 
  tome 
  xi. 
  p. 
  317, 
  t. 
  xii. 
  pi. 
  xii. 
  fig. 
  13 
  (1824), 
  

   Chartergus 
  centralis, 
  Cam. 
  

  

  