﻿444 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol.98 
  

  

  tibiae 
  largely 
  black 
  on 
  outer 
  side; 
  abdomen 
  black, 
  with 
  hardly 
  any 
  

   suggestion 
  of 
  gi'een; 
  hair 
  bands 
  white, 
  interrupted 
  in 
  middle. 
  

  

  When 
  the 
  female 
  abdomen 
  is 
  expanded, 
  the 
  broad 
  red 
  bases 
  of 
  

   tergites 
  3 
  to 
  5 
  are 
  exposed, 
  forming 
  broad 
  red 
  bands. 
  I 
  had 
  taken 
  

   these 
  for 
  a 
  distinct 
  species, 
  but 
  I 
  do 
  not 
  now 
  think 
  they 
  should 
  be 
  

   separated. 
  

  

  This 
  species 
  is 
  common 
  at 
  Zamorano 
  and 
  was 
  found 
  nesting 
  in 
  the 
  

   middle 
  of 
  the 
  high 
  road, 
  making 
  vertical 
  tunnels. 
  I 
  thought 
  it 
  might 
  

   be 
  H. 
  hesperus 
  Smith, 
  but 
  the 
  dark, 
  practically 
  black 
  abdomen 
  is 
  

   different. 
  The 
  anterior 
  margin 
  of 
  the 
  clypeus 
  of 
  the 
  male 
  is 
  not 
  

   yellow, 
  as 
  it 
  is 
  in 
  H. 
  agilis 
  Smith. 
  The 
  front 
  femora 
  of 
  the 
  male 
  are 
  

   dark, 
  ferruginous 
  apically; 
  in 
  H. 
  agilis 
  they 
  are 
  pale 
  ferruginous. 
  The 
  

   female 
  mandibles 
  are 
  dark 
  and 
  could 
  not 
  be 
  described 
  as 
  ferruginous, 
  

   as 
  Smith 
  states 
  for 
  H. 
  vagans 
  Smith. 
  

  

  HAUCTUS 
  (SELADONIA) 
  PSEUDOVAGANS. 
  new 
  species 
  

  

  Female. 
  — 
  Length 
  8 
  mm.; 
  dark 
  olive-green, 
  the 
  apical 
  part 
  of 
  abdo- 
  

   men 
  practically 
  black; 
  mandibles 
  and 
  antennae 
  black; 
  tarsi 
  red. 
  I 
  

   wished 
  to 
  identify 
  this 
  with 
  H. 
  agilis 
  Smith, 
  which, 
  according 
  to 
  Miss 
  

   Sandhouse, 
  is 
  the 
  only 
  greenish 
  species 
  of 
  this 
  group 
  in 
  Central 
  

   America. 
  H. 
  agilis 
  was 
  described 
  from 
  the 
  male, 
  but 
  H. 
  vagans, 
  on 
  

   the 
  same 
  page, 
  refers 
  to 
  the 
  female; 
  hence 
  the 
  substitute 
  name 
  H. 
  

   errans 
  Ritsema, 
  is 
  not 
  needed. 
  

  

  At 
  the 
  British 
  Museum 
  I 
  examined 
  the 
  types 
  of 
  H. 
  agilis 
  (cf) 
  and 
  

   H. 
  vagans 
  (9) 
  and 
  made 
  the 
  following 
  notes: 
  

  

  H. 
  agilis 
  Smith. 
  A 
  true 
  Halictus. 
  Third 
  submarginal 
  cell 
  quite 
  twice 
  as 
  big 
  

   as 
  second, 
  but 
  very 
  broad 
  at 
  top, 
  and 
  outer 
  side 
  without 
  any 
  distinct 
  double 
  

   curve; 
  basal 
  nervure 
  not 
  abruptly 
  bent; 
  head, 
  thorax, 
  and 
  abdomen 
  yellowish 
  

   green; 
  abdomen 
  with 
  apical 
  hair 
  bands 
  on 
  tergites 
  2 
  to 
  5, 
  and 
  basal 
  ones 
  on 
  2 
  

   and 
  3 
  at 
  least; 
  tibiae 
  and 
  tarsi, 
  and 
  most 
  of 
  middle 
  and 
  front 
  femora, 
  red, 
  but 
  

   hind 
  femora 
  dark, 
  abdomen 
  broad 
  basally. 
  Very 
  distinct 
  from 
  any 
  United 
  States 
  

   species 
  known 
  to 
  me. 
  

  

  H. 
  vagans 
  Smith. 
  Second 
  submarginal 
  cell 
  broad, 
  but 
  extremely 
  broad 
  above, 
  

   the 
  outer 
  margin 
  little 
  curved; 
  hind 
  spur 
  with 
  three 
  teeth, 
  the 
  first 
  stout 
  and 
  

   spinelike, 
  the 
  second 
  a 
  flattened 
  and 
  rounded 
  lamina, 
  the 
  third 
  a 
  mere 
  rudiment; 
  

   eyes 
  of 
  typical 
  Halictus; 
  stigma 
  very 
  pale 
  honey; 
  abdomen 
  very 
  broad, 
  yellowish 
  

   green, 
  hind 
  margins 
  of 
  tergites 
  broadly 
  testaceous; 
  base 
  of 
  metathorax 
  minutely 
  

   rugose-wrinkled, 
  with 
  no 
  large 
  plicae. 
  

  

  Miss 
  Sandhouse 
  records 
  H. 
  agilis 
  from 
  Tegucigalpa. 
  

  

  The 
  present 
  species, 
  compared 
  with 
  the 
  above, 
  is 
  a 
  Seladonia 
  with 
  

   pectinate 
  hind 
  spur, 
  shows 
  no 
  testaceous 
  margins 
  of 
  tergites, 
  the 
  

   band 
  at 
  end 
  of 
  first 
  tergite 
  is 
  mainly 
  on 
  base 
  of 
  second, 
  but 
  laterally 
  

   on 
  apex 
  of 
  first. 
  The 
  legs 
  are 
  dark, 
  except 
  the 
  red 
  tarsi. 
  

  

  The 
  mandibles 
  are 
  black; 
  they 
  are 
  ferruginous 
  in 
  vagans, 
  according 
  

   to 
  F. 
  Smith, 
  and 
  the 
  flagellum 
  of 
  the 
  antennae 
  is 
  fulvous 
  beneath, 
  

   which 
  is 
  not 
  at 
  all 
  the 
  case 
  in 
  our 
  species. 
  The 
  scutellum 
  in 
  our 
  species 
  

   is 
  highly 
  polished 
  and 
  the 
  disc 
  appears 
  black. 
  

  

  