﻿Ill 
  

  

  JANUARY 
  3rd, 
  1907 
  

  

  The 
  twenty-fourth 
  regular 
  meeting 
  was 
  held 
  in 
  the 
  Entomo- 
  

   logical 
  Laboratory 
  of 
  the 
  H. 
  S. 
  P. 
  A. 
  Experiment 
  Station, 
  Mr. 
  

   Giffard 
  in 
  the 
  chair. 
  

  

  Member 
  elected 
  : 
  Mr. 
  G. 
  A. 
  Jordan. 
  

  

  NOTES 
  AND 
  EXHIBITION 
  OF 
  SPECIMENS. 
  

  

  Dr. 
  Perkins 
  exhibited 
  a 
  number 
  of 
  aculeate 
  Hymenoptera 
  

   from 
  the 
  Hawaiian 
  Isles 
  and 
  Australia, 
  and 
  made 
  remarks 
  

   thereon. 
  

  

  (i) 
  Prosopis. 
  

  

  About 
  a 
  score 
  of 
  species 
  of 
  this 
  genus 
  and 
  allied 
  forms 
  from 
  

   Australia 
  were 
  exhibited. 
  Dr. 
  Perkins 
  emphasized 
  the 
  great 
  

   variety 
  of 
  habitus 
  and 
  structure 
  of 
  these 
  Australian 
  forms 
  as 
  

   compared 
  with 
  the 
  fifty 
  or 
  more 
  distinct 
  Hawaiian 
  species 
  he 
  

   had 
  separated 
  from 
  Prosopis 
  under 
  the 
  name 
  of 
  Nesoprosopis. 
  

   The 
  latter 
  w^ere 
  in 
  general 
  of 
  very 
  uniform 
  and 
  inconspicuous 
  

   appearance, 
  and 
  none 
  of 
  the 
  Australian 
  species 
  at 
  all 
  resembled 
  

   them 
  structurally. 
  

  

  The 
  brightly 
  metallic 
  Australian 
  species, 
  those 
  with 
  bright 
  

   yellow 
  thoracic 
  markings 
  and 
  red 
  abdomen, 
  and 
  the 
  conspicu- 
  

   ous 
  forms, 
  had 
  no 
  analogy 
  Avith 
  the 
  Hawaiian 
  series. 
  Australia 
  

   also 
  yielded 
  the 
  extraordinary 
  black 
  and 
  yellow 
  wasp-like 
  genus 
  

   Hylaeoides, 
  which 
  not 
  only 
  exactly 
  reproduced 
  the 
  appearance 
  

   of 
  some 
  Australian 
  wasps, 
  but 
  even 
  had 
  the 
  very 
  remarkable 
  

   structure 
  of 
  the 
  second 
  ventral 
  segment 
  shown 
  by 
  some 
  of 
  these. 
  

   "Very 
  similar 
  to 
  the 
  metallic 
  true 
  Prosopis 
  of 
  Australia 
  is 
  

   a 
  series 
  of 
  metallic 
  species 
  which 
  form 
  a 
  new 
  genus 
  of 
  bees, 
  

   allied 
  indeed 
  to 
  Prosopis, 
  but 
  with 
  an 
  acutely 
  lanceolate 
  tongue 
  

   and 
  indicating 
  a 
  direct 
  origin 
  of 
  a 
  sharp-tongued 
  bee 
  from 
  an 
  

   obtuse-tongued 
  one. 
  This 
  genus 
  is 
  therefore 
  of 
  great 
  interest 
  

   as 
  it 
  connects 
  the 
  two 
  distinct 
  series 
  of 
  bees 
  — 
  the 
  Obtusilingues 
  

   and 
  Acutilingues. 
  

  

  Another 
  extraordinary 
  new 
  genus 
  allied 
  to 
  Prosopis 
  is 
  an 
  

   insect 
  so 
  like 
  to 
  some 
  fossorial 
  wasps 
  that 
  it 
  would 
  hardly 
  be 
  

   recognized 
  as 
  a 
  bee 
  at 
  all 
  without 
  careful 
  examination, 
  but 
  

   might 
  be 
  suspected 
  of 
  being 
  an 
  abnormal 
  Pemphredonid 
  or 
  

   Crabronid, 
  the 
  general 
  form 
  and 
  incrassate 
  head 
  resembling 
  

   these 
  wasps. 
  It 
  is, 
  however, 
  a 
  true 
  bee 
  and 
  not 
  even 
  a 
  parasitic 
  

  

  October, 
  1907. 
  

  

  