﻿124 
  REPORT 
  OF 
  NEW 
  JERSEY 
  STATE 
  MUSEUM. 
  

  

  PSEUDOCOCCUS 
  Westw. 
  

  

  P. 
  citri 
  Risso. 
  Common 
  mealy 
  bug. 
  Found 
  in 
  greenhouses 
  throughout 
  

   the 
  State 
  and 
  on 
  a 
  great 
  variety 
  of 
  plants, 
  cultural 
  and 
  ornamental. 
  

   Soap 
  mixtures 
  are 
  usually 
  found 
  successful 
  against 
  these 
  insects, 
  but 
  

   must 
  be 
  frequently 
  applied 
  until 
  the 
  species 
  is 
  gotten 
  under 
  control. 
  

  

  D. 
  longispinus 
  Targ. 
  Another 
  common 
  mealy 
  bug, 
  the 
  "adonidum," 
  of 
  

   the 
  last 
  edition. 
  Occurs 
  on 
  ferns, 
  cycas 
  and 
  other 
  greenhouse 
  plants. 
  

  

  D. 
  sorghiellus 
  Forbes. 
  Feeds 
  on 
  sorghum 
  and 
  also 
  found 
  in 
  the 
  nests 
  of 
  

   ants 
  of 
  various 
  species 
  of 
  "Lasius." 
  

  

  D. 
  trifolii 
  Forbes. 
  Clover 
  root 
  mealy 
  bug; 
  sometimes 
  abundant 
  enough 
  

   to 
  be 
  injurious. 
  

  

  Siib-family 
  Coccin.^. 
  

   PULVINARIA 
  Targ. 
  

  

  Fig. 
  51. 
  — 
  Cottony 
  maple 
  scales: 
  a, 
  Pnh'inaria 
  acericoh 
  

   on 
  leaf; 
  b, 
  P. 
  innumcrabilis 
  on 
  the 
  twigs. 
  

  

  acericola 
  Walsh 
  & 
  Riley. 
  A 
  cottony 
  scale 
  on 
  maple 
  leaves; 
  not 
  

  

  really 
  common 
  in 
  New 
  Jersey, 
  but 
  g. 
  d. 
  

   innumerabilis 
  Rathv. 
  The 
  "cottony 
  maple 
  scale." 
  Occurs 
  throughout 
  

  

  the 
  State, 
  chiefly 
  on 
  soft 
  maple, 
  but 
  also 
  on 
  grape 
  and 
  Virginia 
  

  

  creeper. 
  Found 
  chiefly 
  on 
  twigs 
  and 
  branches 
  and 
  sometimes 
  

  

  seriously 
  injurious 
  to 
  shade 
  trees. 
  

  

  