﻿101 
  

  

  Vertex 
  broad, 
  not 
  prominent 
  anteriorly; 
  no 
  capitate 
  hairs 
  on 
  the 
  head. 
  

   Antennae 
  attaining 
  to 
  about 
  the 
  middle 
  of 
  the 
  cornicles; 
  (2-tubercles) 
  4, 
  

   2i, 
  16, 
  16, 
  IH, 
  6, 
  26, 
  tubercles 
  far 
  apart; 
  frons 
  convex, 
  not 
  sulcate. 
  Ros- 
  

   trum 
  reaching 
  to 
  hind 
  coxae. 
  Style 
  longer 
  than 
  hind 
  tarsi, 
  hairy. 
  Cor- 
  

   nicles 
  longer 
  than 
  the 
  4th 
  segment 
  of 
  the 
  antennae, 
  slighth^ 
  tapcrino-, 
  

   mouth 
  oblique, 
  more 
  than 
  twice 
  as 
  long 
  as 
  style. 
  

  

  Length 
  of 
  body 
  l^ 
  -1| 
  mill., 
  expanse 
  of 
  flight 
  organs 
  abotit 
  5i-5-i 
  mill. 
  

  

  The 
  above 
  description 
  is 
  taken 
  from 
  living 
  winged 
  females; 
  

   the 
  apterous 
  adult 
  is 
  similar, 
  the 
  form 
  being 
  that 
  of 
  M. 
  cerasi; 
  

   I 
  have 
  not 
  seen 
  males. 
  I 
  cannot 
  identify 
  this 
  species 
  with 
  any 
  

   described 
  Myztis, 
  and 
  it 
  cannot 
  be 
  the 
  "Orange 
  Aphis" 
  of 
  North 
  

   America, 
  as 
  that 
  is 
  described 
  as 
  a 
  Macrosiphum 
  {citrijolii) 
  , 
  dark 
  

   green, 
  with 
  garnet-red 
  eyes. 
  The 
  young 
  of 
  Myzus 
  citricidits 
  are 
  

   brown, 
  while 
  those 
  of 
  Macrosiphum 
  citrijolii 
  are 
  said 
  to 
  be 
  light 
  

   yellowish-green 
  or 
  rusty-green. 
  

  

  Myzus 
  citricidus 
  is 
  probably 
  an 
  introduction 
  from 
  China, 
  

   and 
  is 
  very 
  common 
  on 
  Citrus 
  all 
  over 
  the 
  Hawaiian 
  Islands. 
  It 
  

   is 
  not 
  parasitized 
  here, 
  so 
  far 
  as 
  I 
  know, 
  and 
  immediately 
  the 
  

   young 
  Orange 
  shoots 
  appear, 
  they 
  are 
  covered 
  by 
  this 
  pest. 
  

   It 
  is, 
  however, 
  preyed 
  on 
  by 
  a 
  number 
  of 
  insects, 
  which 
  very 
  soon 
  

   make 
  a 
  clean 
  sweep 
  of 
  it; 
  these 
  are 
  as 
  follows: 
  

  

  Neuroptera: 
  Chrysopa 
  microphya 
  and 
  Anomalochrysa 
  biseriata. 
  

  

  Diptera: 
  Xantho 
  gramma 
  grandicornis. 
  

  

  Coleoptera: 
  Coccinella 
  repanda 
  and 
  conformis; 
  Cryptolaemus 
  

   montrouzieri; 
  Platyomus 
  lividigaster 
  ; 
  Scymnus 
  notescens; 
  Coelo- 
  

   phora 
  pupillata 
  and 
  Rhyzobius 
  ventralis. 
  

  

  Hemiptera: 
  Zelus 
  peregrinus, 
  but 
  not 
  often. 
  

  

  Mr. 
  Terry 
  tells 
  me 
  these 
  Aphids 
  have 
  a 
  decided 
  Citrus 
  taste. 
  

  

  Myzocallis 
  Passerini. 
  

  

  1860 
  Gh 
  Afidi; 
  Schouteden 
  1906 
  Mem. 
  S. 
  E. 
  Belg. 
  XII. 
  211. 
  

   kahawaluokalani 
  sp. 
  nov. 
  

   Winged 
  Female: 
  

  

  Pale 
  yellowish, 
  marked 
  with 
  pale 
  brownish 
  fuscous, 
  principally 
  as 
  

   follows 
  : 
  head 
  dorsally 
  with 
  a 
  mediolongitundinal 
  line 
  and 
  a 
  speck 
  on 
  each 
  

   side 
  of 
  this, 
  and 
  lateral 
  margins 
  broadly, 
  posterior 
  margin 
  narrowly; 
  ir- 
  

   regular, 
  broad 
  submedian 
  bands 
  down 
  the 
  pronctum, 
  lateral 
  margins 
  nar- 
  

   rowl}^; 
  a 
  subbval, 
  interiorly 
  pale, 
  sublateral 
  spot 
  on 
  mesonotum, 
  a 
  goblet- 
  

   shaped 
  mark 
  in 
  the 
  middle 
  (the 
  boAvl 
  anteriorly, 
  the 
  stem 
  posteriorly), 
  

   posterior 
  margin 
  broadly; 
  a 
  large 
  irregular 
  transverse 
  spot 
  near 
  the 
  base 
  

   of 
  abdomen; 
  antennae 
  whitish, 
  first 
  two 
  segments 
  and 
  apices 
  of 
  3rd-5th 
  

   pale 
  brownish 
  fuscous. 
  Eyes 
  bright 
  pale 
  vermeil. 
  Abdomen 
  dorsally 
  

  

  