﻿99 
  

  

  wanting, 
  there 
  being 
  only 
  birds 
  to 
  supply 
  this, 
  makes 
  the 
  problem 
  

   a 
  puzzling 
  one. 
  In 
  spite 
  of 
  this, 
  the 
  species 
  of 
  these 
  flies 
  are 
  

   numerous, 
  the 
  individuals 
  sometimes 
  abundant, 
  so 
  much 
  so 
  as 
  

   to 
  furnish 
  the 
  food 
  supply 
  for 
  the 
  larvae 
  of 
  various 
  Hawaiian 
  

   Crabronidae. 
  

  

  Five 
  species 
  of 
  Pipunculus 
  (parasitic 
  here 
  on 
  Delphacid 
  leaf 
  

   hoppers) 
  are 
  known 
  to 
  m.e 
  from 
  Kilauea, 
  and 
  several 
  of 
  Caenosia, 
  

   and 
  these 
  with 
  the 
  groups 
  previously 
  mentioned, 
  as 
  well 
  as 
  

   species 
  of 
  Lispe, 
  Asteia, 
  Tephritis 
  and 
  Sarcophaga 
  complete 
  the 
  

   Dipterous 
  fauna. 
  

  

  Throughout 
  this 
  paper 
  I 
  have 
  used 
  generic 
  and 
  specific 
  names, 
  

   as 
  published 
  in 
  the 
  " 
  Fauna 
  Hawaiiensis, 
  " 
  so 
  that 
  it 
  has 
  not 
  been 
  

   necessary 
  to 
  cite 
  the 
  authors. 
  In 
  the 
  Hymenoptera 
  I 
  have 
  used 
  

   the 
  genera 
  proposed 
  by 
  me 
  subsequently 
  for 
  the 
  genus 
  Crabro 
  

   of 
  that 
  work. 
  

  

  Papers. 
  

  

  On 
  Some 
  Peregrine 
  Aphidae 
  in 
  Oahu 
  [Hem.] 
  

  

  By 
  G. 
  W. 
  KiRKALDY. 
  

  

  With 
  the 
  exception 
  of 
  certain 
  Chermidae, 
  all 
  the 
  Sternorr- 
  

   hynchous 
  Homoptera 
  yet 
  observed 
  in 
  the 
  Hawaiian 
  Archi- 
  

   pelago 
  appear 
  to 
  be 
  recent 
  arrivals. 
  As 
  is 
  natural 
  in 
  families 
  

   so 
  little 
  studied 
  till 
  lately, 
  many 
  of 
  the 
  species 
  cannot 
  be 
  

   identified 
  with 
  any 
  of 
  those 
  already 
  described 
  from 
  other 
  Faunas 
  

   and 
  consequently 
  their 
  endemic 
  habitat 
  remains 
  unknown. 
  I 
  

   now 
  enumerate 
  four 
  Aphidae 
  occurring 
  near 
  Honolulu; 
  about 
  

   six 
  more 
  are 
  known 
  to 
  me, 
  but 
  as 
  they 
  belong 
  to 
  obscure 
  genera 
  

   with 
  many, 
  poorly 
  differentiated 
  species, 
  I 
  have 
  not 
  yet 
  positively 
  

   determined 
  them, 
  and 
  must 
  leave 
  them 
  for 
  a 
  future 
  communica- 
  

   tion. 
  

  

  Several 
  of 
  these 
  species 
  are 
  of 
  considerable 
  economic 
  import- 
  

   ance, 
  Myzus 
  citricidus 
  doing 
  much 
  damage 
  to 
  Orange 
  trees, 
  

   whilst 
  Aphis 
  sacchari 
  is 
  a 
  pest 
  of 
  Sugar-cane. 
  

  

  Aphis 
  Linnaeus. 
  

  

  1758 
  Systema 
  Naturae, 
  Ed. 
  10, 
  p. 
  451. 
  

  

  1. 
  sacchari 
  Zehntner. 
  

  

  Aphis 
  sacchari 
  Zehntner 
  1897 
  Arch. 
  Java 
  Suiker. 
  V. 
  p.? 
  and 
  

  

  1901 
  op. 
  c, 
  IX 
  (sep., 
  p. 
  1) 
  PI. 
  I 
  f. 
  1-10; 
  Kriiger 
  1S99 
  Das 
  Zuck- 
  

  

  errohr 
  und 
  seine 
  Kultur 
  313. 
  

  

  