﻿THE 
  INiSECTS 
  OF 
  NEW 
  JERSEY. 
  

  

  115 
  

  

  Sub-family 
  Schizoneurin^. 
  

  

  COLOPHA 
  Monell. 
  

  

  C. 
  u.lmicola 
  Fitch. 
  Makes 
  the 
  well- 
  

   known 
  cockscomb 
  gall 
  on 
  elm; 
  

   locally 
  and 
  seasonally 
  common 
  

   throughout 
  the 
  State. 
  

  

  SCHIZONEURA 
  Hartig. 
  

  

  S. 
  corni 
  Fabr. 
  A 
  woolly 
  louse 
  on 
  

   various 
  species 
  of 
  dogwood, 
  but 
  

   also 
  found 
  on 
  a 
  variety 
  of 
  

   grasses 
  and 
  other 
  plants. 
  

  

  S. 
  ianigera 
  Hausm. 
  The 
  "woolly 
  

   apple-louse." 
  More 
  or 
  less 
  com- 
  

   mon 
  throughout 
  the 
  State, 
  but 
  

   never 
  really 
  injurious. 
  It 
  

   forms 
  galls 
  on 
  roots, 
  and 
  

   clusters 
  in 
  masses 
  about 
  

   wounds 
  on 
  the 
  trunk 
  and 
  

   branches. 
  In 
  the 
  latter 
  condi- 
  

   tion 
  it 
  is 
  easily 
  reached 
  by 
  the 
  

   kerosene 
  emulsion. 
  Root 
  treat- 
  

   ments 
  have 
  not 
  hitherto 
  been 
  

   necessary 
  in 
  New 
  Jersey. 
  

   Occurs 
  also 
  on 
  other 
  plants 
  

   and 
  trees, 
  and 
  is 
  the 
  "ameri- 
  

   cana" 
  of 
  the 
  last 
  edition. 
  

  

  S. 
  rileyi 
  Thos. 
  (ulmi 
  Riley.) 
  A 
  

   woolly 
  louse 
  on 
  American 
  elm. 
  

  

  Fig. 
  46 
  — 
  .Woolly 
  apple 
  louse; 
  injury 
  to 
  the 
  

  

  roots 
  is 
  shown 
  at 
  a: 
  adult 
  at 
  c, 
  showing 
  

  

  the 
  woolly 
  fibres, 
  much 
  enlarged. 
  

  

  Sub-family 
  Lachnin^. 
  

  

  PHYLLAPHIS 
  Koch. 
  

   P. 
  fagi 
  Linn. 
  Trenton 
  (U 
  S. 
  Ag) 
  ; 
  on 
  beech. 
  

  

  LACHNUS 
  Burm. 
  

  

  L. 
  abietis 
  Fitch. 
  Occurs 
  on 
  spruce 
  in 
  the 
  Appalachian 
  and 
  Highlands 
  

  

  areas. 
  

   L. 
  ainifoliae 
  Fitch. 
  Occurs 
  on 
  leaves 
  of 
  alder. 
  

   L. 
  laricifex 
  Fitch. 
  Occurs 
  on 
  the 
  American 
  larch 
  or 
  tamarack. 
  

   L. 
  quercifoliae 
  Fitch. 
  On 
  the 
  leaves 
  of 
  oak. 
  

   L. 
  salicelis 
  Fitch. 
  Found 
  locally 
  on 
  willows. 
  

   L. 
  strobi 
  Fitch. 
  A 
  feeder 
  on 
  white 
  pine; 
  sometimes 
  locally 
  common. 
  

  

  