﻿92 
  

  

  the 
  flowers 
  of 
  the 
  Ohia 
  trees, 
  to 
  which 
  they 
  resort 
  for 
  food. 
  Prac- 
  

   tically 
  all 
  the 
  bees 
  and 
  wasps 
  found 
  here 
  are 
  burrow^ers 
  in 
  the 
  

   ground, 
  or 
  they 
  nest 
  in 
  holes 
  in 
  the 
  lava 
  blocks, 
  those 
  which 
  nest 
  

   in 
  tree 
  trunks, 
  being 
  absent 
  or 
  present 
  only 
  as 
  stragglers. 
  

  

  The 
  second 
  region 
  or 
  Koa 
  forest 
  is 
  well 
  characterized 
  by 
  its 
  

   Longicorn 
  beetles 
  of 
  the 
  genus 
  Plagithmysus 
  and 
  Clytarlus, 
  by 
  its 
  

   abundance 
  of 
  Anobiidae, 
  large 
  black 
  Fornax, 
  the 
  Cistelid 
  Labetis, 
  

   and 
  the 
  many 
  wasps 
  of 
  the 
  genus 
  Odynerus, 
  that 
  frequent 
  the 
  

   tree 
  trunks. 
  

  

  The 
  third 
  is 
  rich 
  in 
  moths 
  of 
  the 
  genus 
  Leucania, 
  in 
  species 
  of 
  

   Carabid 
  beetles, 
  which, 
  however, 
  excepting 
  in 
  a 
  few 
  cases, 
  are 
  

   rare 
  in 
  individuals; 
  in 
  special 
  species 
  of 
  Nitidulidae, 
  and 
  in 
  its 
  

   interesting 
  and 
  peculiar 
  bees 
  of 
  the 
  genus 
  Nesoprosopis. 
  It 
  also 
  

   produces 
  the 
  large 
  and 
  remarkable 
  weevil, 
  Nesotocus 
  niunroi. 
  

  

  I 
  will 
  now 
  take 
  the 
  Orders 
  of 
  insects 
  seriatim 
  and 
  list 
  some 
  of 
  

   the 
  species 
  that 
  I 
  have 
  met 
  with 
  at 
  Kilauea. 
  As 
  in 
  my 
  last 
  year's 
  

   address 
  I 
  shall 
  deal 
  only 
  with 
  the 
  endemic 
  insects, 
  omitting 
  all 
  

   reference 
  to 
  introduced 
  species. 
  

  

  Thysanura. 
  

   Machilis 
  heteropus 
  is 
  common' 
  as 
  in 
  other 
  wooded 
  localities 
  

   throughout 
  the 
  islands, 
  but 
  no 
  native 
  Lepisnia 
  nor 
  lapyx 
  have 
  

   been 
  found 
  at 
  Kilauea 
  and 
  probabl}^ 
  they 
  do 
  not 
  occur 
  on 
  the 
  

   island 
  of 
  Hawaii. 
  The 
  Collembola 
  are 
  numerous 
  in 
  individuals 
  

   at 
  least, 
  but 
  probably 
  all 
  the 
  species 
  are 
  introduced, 
  excepting 
  

   possibly 
  some 
  of 
  the 
  Achoreutidae, 
  which 
  congregate 
  beneath 
  

   the 
  bark 
  of 
  trees. 
  

  

  ORTHOPTERA. 
  

  

  The 
  ubiquitous 
  roach 
  Phyllodromia 
  obtusata 
  is 
  of 
  course 
  abun- 
  

   dant, 
  its 
  egg 
  capsules 
  here, 
  as 
  elsewhere 
  in 
  the 
  islands, 
  being 
  

   destroyed 
  by 
  the 
  Eupelmine 
  Chalcid, 
  Solindenia 
  picticornis. 
  

   The 
  Locustid 
  Brachymetopa 
  nitida 
  only 
  just 
  attains 
  so 
  high 
  an 
  

   elevation 
  as 
  Kilauea 
  and 
  is 
  not 
  common 
  there, 
  but 
  abounds 
  

   lower 
  dow^n 
  in 
  the 
  Olaa 
  and 
  Hilo 
  forests, 
  and 
  it 
  is 
  interesting 
  to 
  

   observe 
  that 
  examples 
  from 
  the 
  different 
  localities 
  exhibit 
  ap- 
  

   parently 
  more 
  or 
  less 
  definitely 
  distinct 
  variations, 
  as 
  if 
  tending 
  

   to 
  become 
  distinct 
  species. 
  B. 
  nitida 
  has 
  a 
  not-green 
  form 
  of 
  the 
  

   female, 
  in 
  Olaa 
  every 
  fourth 
  or 
  fifth 
  specimen 
  of 
  this 
  sex 
  being 
  

   either 
  fuscous, 
  brownish 
  or 
  yelloyish. 
  The 
  males 
  on 
  the 
  other 
  

   hand 
  are 
  always, 
  or 
  nearly 
  always, 
  green. 
  In 
  Olaa 
  the 
  unique 
  

  

  