﻿504 
  Mr. 
  T. 
  D. 
  A. 
  Cockerell 
  — 
  Descriptions 
  and 
  

  

  and 
  comparatively 
  feeble 
  Agrionitlfe 
  feed 
  largely 
  upon 
  such 
  

   moths 
  and 
  Diptera 
  as 
  can 
  be 
  easily 
  overpowered 
  by 
  them. 
  

   But, 
  apart 
  from 
  this 
  matter, 
  the 
  amount 
  of 
  information 
  

   which 
  has 
  so 
  far 
  been 
  accumulated 
  is 
  hardly 
  sufficient 
  to 
  

   enable 
  us 
  to 
  determine 
  whetlier 
  much 
  discrimination 
  is 
  

   exercised 
  by 
  Odonata 
  in 
  the 
  selection 
  of 
  living 
  things 
  as 
  

   articles 
  of 
  food. 
  

  

  58 
  Ranelagli 
  Road, 
  Ealing, 
  AV. 
  

   20th 
  March, 
  19U. 
  

  

  LIX. 
  — 
  Descriptions 
  and 
  Records 
  of 
  Bees. 
  — 
  LIX. 
  

   By 
  T. 
  D. 
  A. 
  Cockerell, 
  University 
  of 
  Colorado. 
  

  

  Halictus 
  hedleyi, 
  Cockerell, 
  var. 
  a. 
  

  

  (J 
  . 
  — 
  Hind 
  tibiae 
  broadly 
  dusky 
  in 
  middle 
  ; 
  second 
  abdo- 
  

   minal 
  segment 
  red, 
  Avith 
  a 
  very 
  broad 
  dusky 
  apical 
  shade, 
  

   third 
  segment 
  red 
  at 
  sides 
  of 
  base, 
  otherwise 
  black, 
  fourth 
  

   black. 
  

  

  Hab. 
  ''Cheltenham, 
  Victoria" 
  {French, 
  Froggatt 
  coll. 
  18i). 
  

  

  This 
  differs 
  from 
  H. 
  hedleyi 
  only 
  in 
  the 
  reduction 
  of 
  the 
  

   red 
  colour, 
  and 
  is 
  presumably 
  no 
  more 
  than 
  an 
  individual 
  

   variation. 
  Toward 
  the 
  end 
  of 
  the 
  original 
  description 
  of 
  

   H. 
  hedleyi, 
  venter 
  is 
  misprinted 
  "vertex." 
  

  

  Halictus 
  vitripennis, 
  Smith, 
  var. 
  a. 
  

  

  $ 
  . 
  — 
  First 
  abdominal 
  segment 
  red, 
  with 
  a 
  transverse 
  dark 
  

   mark. 
  

  

  Hub. 
  Purnong 
  (S. 
  JF, 
  Fulton, 
  Nat. 
  Mus. 
  Vict. 
  146). 
  

  

  Halictus 
  dampieri, 
  Cockerell. 
  

  

  (J. 
  — 
  Brisbane, 
  May 
  13, 
  1912 
  [H. 
  Hackeri, 
  Queensl. 
  Mus. 
  

   64). 
  

  

  Halictus 
  punciatus, 
  Smith. 
  

  

  Croydon 
  {S. 
  W. 
  Fulton, 
  Nat. 
  Mus. 
  Victoria, 
  178, 
  LSI, 
  179, 
  

   239, 
  240, 
  243). 
  

  

  Halictus 
  erythrurus, 
  sp. 
  n. 
  (sphecodoides, 
  subsp. 
  ?). 
  

  

  $ 
  . 
  — 
  Length 
  a 
  little 
  less 
  than 
  5 
  mm. 
  

   Pubescence 
  scanty, 
  dull 
  white 
  : 
  head 
  ordinary', 
  black, 
  the 
  

  

  