﻿Manchester 
  Memoirs, 
  Vol. 
  xli. 
  (1897), 
  No. 
  4. 
  97 
  

  

  forming 
  almost 
  reticulations 
  ; 
  at 
  the 
  apex 
  in 
  the 
  middle 
  

   is 
  an 
  area 
  broad 
  and 
  rounded 
  at 
  the 
  base, 
  becoming 
  

   narrowed 
  towards 
  the 
  apex 
  ; 
  forming 
  an 
  almost 
  pyriform 
  

   space 
  ; 
  there 
  is 
  an 
  oblique, 
  somewhat 
  similar, 
  area 
  at 
  its 
  

   side 
  at 
  the 
  top 
  ; 
  the 
  rest 
  has 
  four 
  stout 
  slightly 
  oblique 
  

   keels, 
  running 
  from 
  the 
  centre. 
  Pro- 
  and 
  meso-pleurae 
  

   coarsely 
  strongly 
  punctured, 
  running 
  into 
  strong 
  reticula- 
  

   lations 
  at 
  the 
  apex 
  ; 
  the 
  metapleuras 
  coarsely 
  strongly 
  

   punctured 
  ; 
  the 
  base 
  coarsely 
  obliquely 
  striated 
  ; 
  the 
  

   punctures 
  at 
  the 
  apex 
  large, 
  round. 
  Legs 
  black 
  ; 
  the 
  

   apices 
  testaceous 
  ; 
  the 
  femora 
  sparsely, 
  the 
  tibiae, 
  and 
  

   especially 
  the 
  tarsi 
  covered 
  with 
  silvery 
  white 
  pubescence. 
  

   The 
  first 
  and 
  second 
  transverse 
  cubital 
  nervures 
  are 
  

   bullated 
  at 
  top 
  and 
  bottom 
  ; 
  the 
  first 
  recurrent 
  nervure 
  is 
  

   received 
  quite 
  close 
  to 
  the 
  transverse 
  cubital 
  ; 
  the 
  second 
  

   shortly 
  before 
  the 
  apical 
  third 
  of 
  the 
  cellule. 
  Abdomen 
  

   shining, 
  the 
  basal 
  three 
  segments 
  punctured 
  ; 
  the 
  apical 
  

   smooth 
  and 
  shining 
  ; 
  the 
  ventral 
  segments 
  shining, 
  

   broadly 
  ferruginous 
  in 
  the 
  middle; 
  the 
  third 
  ferruginous 
  

   in 
  the 
  middle. 
  

  

  Halictus 
  serenus, 
  sp. 
  nov. 
  

  

  Niger; 
  abdominis 
  basi 
  late 
  riifo 
  ; 
  alis 
  hyalinis, 
  ncrvis 
  

   testaceis. 
  c?. 
  Long. 
  5 
  mm. 
  

  

  Hab. 
  Mussouri 
  (Rothney). 
  

  

  Head 
  finely 
  punctured, 
  thickly 
  covered 
  with 
  long 
  

   white 
  hair 
  ; 
  the 
  mandibles 
  before 
  the 
  apex 
  ferruginous 
  ; 
  

   beneath 
  with 
  some 
  long 
  golden 
  hairs. 
  Antennae 
  stout, 
  

   the 
  scape 
  with 
  some 
  long 
  white 
  hairs 
  ; 
  the 
  flagellum 
  

   almost 
  bare. 
  The 
  base 
  of 
  the 
  median 
  segment 
  with 
  its 
  

   area 
  irregularly 
  striolated 
  ; 
  the 
  lateral 
  striations 
  on 
  it 
  

   straighter 
  and 
  more 
  widely 
  separated 
  ; 
  the 
  apex 
  hollowed, 
  

   smooth, 
  impunctate 
  at 
  base, 
  the 
  apex 
  rough, 
  but 
  without 
  

   any 
  distinctly 
  defined 
  keels. 
  Pleurae 
  strongly 
  aciculated, 
  

   covered 
  with 
  long 
  white 
  hairs 
  ; 
  femora 
  clothed 
  with 
  some 
  

   long 
  white 
  hairs 
  ; 
  the 
  tibiae 
  and 
  tarsi 
  more 
  thickly 
  with 
  

  

  G 
  

  

  