﻿516 
  Mr. 
  T. 
  D. 
  A. 
  Cockerel! 
  — 
  Descriptions 
  and 
  

  

  stigma 
  sepia; 
  outer 
  t.-c. 
  and 
  r. 
  n. 
  weakened 
  ; 
  first 
  r. 
  n. 
  

   meeting 
  second 
  t.-c. 
  ; 
  hind 
  spur 
  with 
  a 
  few 
  large 
  teeth. 
  

   Abdomen 
  shining, 
  finely 
  punctured; 
  venter 
  with 
  stiflF 
  white 
  

   hair, 
  but 
  no 
  curled 
  scopa. 
  

  

  Hub. 
  Tambourine 
  Mountain, 
  Queensland, 
  at 
  flowers 
  of 
  

   Helichrysum 
  bracteatum, 
  Oct. 
  27, 
  1912 
  (H. 
  Hacker, 
  Queensl. 
  

   Mus. 
  84); 
  also 
  a 
  cotype 
  fi'om 
  Brisbane, 
  Jan. 
  17, 
  1912 
  

   {Hacker 
  ; 
  Queensl. 
  Mus, 
  31). 
  

  

  Easily 
  known 
  from 
  H. 
  griseovittatus 
  by 
  the 
  absence 
  of 
  

   hair-bands 
  at 
  bases 
  of 
  abdominal 
  segments. 
  

  

  The 
  following 
  three 
  species 
  are 
  very 
  like 
  H. 
  helichrysi, 
  

   the 
  four 
  being 
  separable 
  as 
  follows 
  : 
  — 
  

  

  riagellum 
  dark, 
  faintly 
  brownish 
  beneath 
  //. 
  imitans. 
  

  

  Flagelluni 
  red 
  beneath 
  1. 
  

  

  1. 
  Mesothorax 
  strongly 
  punctured; 
  scutellum 
  with 
  

  

  sparse 
  small 
  punctures 
  ; 
  hind 
  margin 
  of 
  fourth 
  

   abdominal 
  segment 
  broadly 
  whitish 
  hyaline 
  .... 
  H. 
  helichrysi. 
  

   Mesothorax 
  more 
  finely 
  punctured 
  ; 
  hind 
  margin 
  

   of 
  fourth 
  segment 
  not 
  broadly 
  whitish 
  hyaline 
  . 
  . 
  2. 
  

  

  2. 
  Lateral 
  bases 
  of 
  abdominal 
  segments 
  2 
  to 
  4 
  broadly 
  

  

  white-tomentose 
  ; 
  scutellum 
  duller, 
  more 
  closely 
  

  

  punctured 
  H. 
  victoriellus. 
  

  

  Lateral 
  bases 
  of 
  abdominal 
  segments 
  2 
  to 
  4 
  

   not 
  white-tomentose 
  ; 
  scutellum 
  shining, 
  very 
  

   minutely 
  and 
  more 
  sparsely 
  punctured 
  //. 
  plebeius. 
  

  

  Halictus 
  imitans, 
  sp. 
  n. 
  

  

  ? 
  . 
  — 
  Length 
  about 
  6^ 
  mm. 
  

  

  Black, 
  robust, 
  with 
  scanty 
  dull 
  white 
  hair, 
  faintly 
  creamy 
  

   on 
  head 
  and 
  thorax 
  above 
  ; 
  mandibles 
  with 
  the 
  apical 
  part 
  

   variably 
  dark 
  reddish 
  ; 
  antennse 
  entirely 
  dark 
  ; 
  clypeus 
  

   shining, 
  with 
  sparse 
  weak 
  punctures 
  ; 
  front 
  dull, 
  somewhat 
  

   glistening 
  at 
  sides, 
  the 
  middle 
  punctured 
  and 
  feebly 
  striate 
  ; 
  

   mesothorax 
  glistening, 
  but 
  quite 
  strongly 
  ancl 
  densely 
  

   punctured 
  ; 
  scutellum 
  with 
  minute, 
  rather 
  close 
  punctures 
  ; 
  

   area 
  of 
  metathorax 
  large, 
  finely 
  and 
  regularly 
  striate; 
  

   hind 
  spur 
  with 
  a 
  large 
  subbasal 
  tooth 
  ; 
  tegulse 
  piceous, 
  witii 
  

   a 
  large 
  rufous 
  spot. 
  Wings 
  dusky, 
  nervures 
  and 
  stigma 
  

   dusky 
  red 
  ; 
  outer 
  r. 
  n. 
  and 
  t.-c. 
  weakened 
  ; 
  first 
  r. 
  n. 
  meeting 
  

   second 
  t.-c. 
  Abdomen 
  shining, 
  very 
  minutely 
  punctured 
  ; 
  

   lateral 
  bases 
  of 
  second 
  and 
  following 
  segments 
  with 
  rather 
  

   inconspicuous 
  patches 
  of 
  dull 
  white 
  tomentura, 
  on 
  third 
  

   segment 
  twice 
  as 
  extensive 
  as 
  on 
  second 
  ; 
  venter 
  with 
  

   abundant 
  white 
  hair. 
  

  

  Hub. 
  Victoria, 
  Feb. 
  1901 
  (C. 
  F. 
  ; 
  Turner 
  coll.). 
  Two 
  

   specimens. 
  

  

  