﻿500 
  ^Jr. 
  T. 
  D. 
  A. 
  Cockerell 
  — 
  Descriptions 
  and 
  

  

  ridges^ 
  joined 
  at 
  intervals 
  by 
  little 
  transverse 
  ones^ 
  so 
  as 
  to 
  

   produce 
  a 
  cancellated 
  effect 
  ; 
  at 
  sides 
  the 
  plicsR 
  run 
  over 
  tlie 
  

   edge 
  of 
  the 
  area 
  proper. 
  Legs 
  black, 
  the 
  middle 
  and 
  hind 
  

   femora 
  dark 
  greenish 
  ; 
  hind 
  femora 
  strongl}^ 
  concave 
  be- 
  

   neath 
  ; 
  hind 
  spur 
  with 
  three 
  or 
  four 
  short 
  teeth 
  ; 
  tegulse 
  

   rufous, 
  hyaline 
  in 
  front. 
  Wings 
  clear 
  hyaline 
  ; 
  stigma 
  dark 
  

   brown, 
  nervures 
  sepia 
  ; 
  outer 
  r. 
  n. 
  and 
  t.-c. 
  evanescent; 
  first 
  

   r. 
  n. 
  meeting 
  second 
  t.-c. 
  Abdomen 
  broad, 
  shining 
  steel- 
  

   blue, 
  with 
  slight 
  purple 
  tints 
  ; 
  venter 
  with 
  a 
  curled 
  white 
  

   floccus. 
  

  

  Hab. 
  Caloundra, 
  Queensland, 
  Oct. 
  30, 
  1912 
  (7/. 
  Hacker, 
  

   Queensl. 
  Mus. 
  83). 
  

  

  H. 
  caloundrensis 
  is 
  of 
  the 
  immediate 
  group 
  of 
  H. 
  behri, 
  

   transvo/ans, 
  and 
  flindersi, 
  but 
  is 
  easily 
  separated 
  by 
  the 
  

   remarkable 
  sculpture 
  of 
  the 
  mcsothorax. 
  

  

  Halictus 
  urbcmus, 
  Smith. 
  

  

  Stradbroke 
  Island, 
  Oct. 
  2, 
  1911 
  [Hacker, 
  Queensl. 
  Mus. 
  

   51). 
  

  

  Halictus 
  lanarius, 
  Smith. 
  

  

  Females 
  (/fmflHw5, 
  Sm.) 
  : 
  Brisbane, 
  Jan. 
  17, 
  1912 
  (Hacker; 
  

   Queensl. 
  Mus. 
  16) 
  ; 
  Oakleigh 
  {Hill; 
  Nat. 
  Mus. 
  Vict. 
  (;9). 
  

  

  Males 
  (laniigiiiosus, 
  Sm.) 
  : 
  Whittlesea 
  (J. 
  A. 
  Kershaiv 
  ; 
  

   Nat. 
  Mus. 
  Vict. 
  97) 
  ; 
  Tambourine 
  Mtn., 
  Oct. 
  27 
  {Hacker; 
  

   Queensl. 
  Mus. 
  77) 
  ; 
  Windsor, 
  Victoria 
  {French 
  ; 
  Froggatt, 
  

   82); 
  Sydney, 
  N.S.W. 
  {Froggatt, 
  117); 
  Timboon 
  (./. 
  A. 
  

   Kershaw; 
  Nat. 
  Mus. 
  Vict. 
  75). 
  

  

  Halictus 
  hicmatosloma, 
  sp. 
  n. 
  

  

  ^ 
  . 
  — 
  Length 
  about 
  4f 
  mm. 
  

  

  Robust, 
  with 
  dull 
  white 
  hair 
  ; 
  head 
  and 
  thorax 
  black, 
  with 
  

   labrum, 
  mandibles 
  (except 
  base), 
  and 
  lower 
  margin 
  of 
  clypeus 
  

   ])right 
  ferruginous; 
  mesothorax 
  ami 
  scutellum 
  shining 
  dark 
  

   bluisli 
  green 
  ; 
  scape 
  black, 
  flagellum 
  bright 
  apricot-colour, 
  

   slightly 
  dusky 
  above 
  ; 
  mesothorax 
  very 
  distinctly 
  but 
  not 
  

   very 
  clensely 
  punctured, 
  the 
  punctures 
  small 
  ; 
  middle 
  of 
  

   scutellum 
  distinctly 
  punctured 
  ; 
  area 
  of 
  metathorax 
  small 
  

   and 
  short, 
  irregularly 
  wrinkled 
  ; 
  knees 
  and 
  tarsi 
  bright 
  

   ferruginous 
  ; 
  tcgulae 
  dark 
  reddish. 
  Wings 
  clear, 
  nervures 
  

   and 
  stigma 
  very 
  light 
  testaceous 
  ; 
  outer 
  t.-c. 
  and 
  r. 
  n. 
  evan- 
  

   escent. 
  Abdomen 
  piceous, 
  with 
  the 
  hind 
  margins 
  of 
  the 
  

   segments 
  pallid 
  ; 
  a 
  rather 
  strong 
  constriction 
  between 
  first 
  

   and 
  second 
  segments, 
  'i'his 
  male 
  has 
  exactly 
  the 
  build 
  of 
  a 
  

   uurnuil 
  female, 
  Mith 
  robust 
  body 
  and 
  short 
  antenna'. 
  

  

  