﻿50 
  

  

  various 
  species 
  of 
  Caenosia 
  are 
  well 
  worth 
  collecting, 
  as 
  there 
  

   must 
  be 
  many 
  new 
  species 
  of 
  these. 
  Other 
  still 
  smaller 
  and 
  

   more 
  obscure 
  Acalypterate 
  muscids 
  are 
  numerous. 
  They 
  should 
  

   be 
  collected 
  in 
  large 
  numbers, 
  as 
  most 
  of 
  the 
  individuals 
  preserve 
  

   badly. 
  

  

  ORTHOPTERA. 
  

  

  The 
  little 
  native 
  cockroach 
  Phyllodromia 
  obtusata 
  is 
  extremely 
  

   common, 
  but 
  the 
  two 
  very 
  distinct 
  species 
  of 
  Brachymetopa 
  in 
  

   the 
  Locustidae 
  are 
  much 
  more 
  interesting. 
  B. 
  blackburni 
  is 
  

   dimorphic, 
  having 
  a 
  brownish 
  or 
  testaceous 
  form 
  with 
  black 
  

   face, 
  and 
  a 
  bright 
  green 
  form. 
  The 
  males 
  are 
  usually 
  of 
  the 
  

   testaceous 
  form, 
  the 
  females 
  green, 
  but 
  occasionally 
  a 
  brown 
  

   female 
  or 
  green 
  male 
  is 
  found. 
  Some 
  of 
  the 
  green 
  examples 
  

   have 
  the 
  face 
  largely 
  brownish, 
  and 
  thus 
  resemble 
  B. 
  unica 
  

   superficially, 
  but 
  there 
  are 
  no 
  true 
  intermediate 
  forms 
  between 
  

   the 
  two 
  phases 
  of 
  blackburni. 
  B. 
  unica 
  is 
  a 
  rare 
  species, 
  known 
  

   only 
  as 
  a 
  green 
  form, 
  but 
  a 
  yellowish 
  or 
  brown 
  one 
  will 
  probably 
  

   be 
  discovered 
  if 
  a 
  number 
  of 
  specimens 
  be 
  collected. 
  It 
  is 
  a 
  

   most 
  distinct 
  species. 
  

  

  In 
  the 
  Gryllidae 
  Paratrigonidium 
  yields 
  several 
  species, 
  

   saltator 
  on 
  Freycinetia, 
  subroseum 
  only 
  on 
  Ohia, 
  pacificum 
  ter- 
  

   restrial, 
  and 
  at 
  least 
  two 
  other 
  species, 
  probably 
  varians 
  and 
  

   debile. 
  Prognathogryllus 
  stridulans 
  is 
  the 
  species 
  called 
  Neso- 
  

   gryllus 
  stridulans 
  in 
  the 
  Fauna 
  Hawaiiensis, 
  the 
  curious 
  sexual 
  

   characters 
  being 
  formerly 
  unknown. 
  Leptogryllus 
  nigrolineatus 
  

   is 
  found 
  at 
  the 
  base 
  of 
  leaves 
  of 
  Freycinetia, 
  and 
  fusconotatus 
  in 
  

   exactly 
  similar 
  situations. 
  

  

  NEUROPTERA. 
  

  

  The 
  Neuroptera 
  are 
  not 
  well 
  known 
  at 
  present; 
  the 
  Heme- 
  

   robiids 
  Megalomus 
  hospes 
  and 
  N 
  esomicromus 
  vagus 
  are 
  common 
  

   and 
  one 
  other 
  species, 
  probably 
  subochraceus 
  . 
  Anomalochrysa 
  

   deceptor, 
  biseriata, 
  proteus, 
  and 
  cognata 
  have 
  been 
  taken, 
  and 
  

   there 
  are 
  certainly 
  others. 
  

  

  Stray 
  specimens 
  of 
  the 
  dragon-fly 
  Sympetrum 
  blackburni 
  are 
  

   occasionally 
  seen, 
  and 
  of 
  the 
  great 
  Anax 
  strenuus, 
  and 
  the 
  fol- 
  

   lowing 
  Agrionines 
  A. 
  xanthomelas 
  , 
  hawaiiensef, 
  nigra 
  -hamatum, 
  

   deceptor, 
  and 
  oceanicum. 
  All 
  these 
  are 
  stragglers 
  from 
  neigh- 
  

   boring 
  waters, 
  but 
  I 
  noticed 
  three 
  of 
  the 
  five 
  in 
  one 
  spot 
  the 
  

   other 
  day. 
  A. 
  asteliae, 
  A. 
  koelense, 
  and 
  A. 
  oahuense 
  all 
  breed 
  at 
  

  

  