﻿THE 
  INSECTS 
  OiF 
  NEW 
  JERSEY. 
  t,73 
  

  

  Family 
  PYROCHROID^. 
  

  

  Rather 
  large, 
  flattened 
  beetles, 
  bright 
  blue, 
  black 
  or 
  orange 
  in 
  contrast, 
  

   thorax 
  narrower 
  than 
  the 
  elytra, 
  the 
  latter, 
  rather 
  soft 
  in 
  texture, 
  widen- 
  

   ing 
  posteriorly. 
  The 
  antennae 
  are 
  either 
  serrate 
  or, 
  in 
  the 
  males, 
  with 
  

   long 
  comb-like 
  processes. 
  The 
  beetles 
  are 
  usually 
  rare, 
  found 
  about 
  dead 
  

   or 
  decaying 
  trees, 
  and 
  in 
  these 
  live 
  the 
  larvae, 
  which 
  have 
  a 
  broad 
  head, 
  

   stout 
  legs 
  and 
  two 
  spines 
  on 
  the 
  last 
  abdominal 
  segment. 
  None 
  are 
  of 
  

   economic 
  importance. 
  

  

  ISCHALIA 
  Pasc. 
  

  

  I. 
  costata 
  Lee. 
  Woodbury 
  XII, 
  Merchantville 
  (W) 
  ; 
  Lakehurst 
  V 
  (Jl) 
  ; 
  

   in 
  each 
  case 
  by 
  sifting 
  moss 
  or 
  old 
  leaves 
  in 
  a 
  swamp. 
  

  

  PYROCHROA 
  Geoff. 
  

  

  P. 
  flabellata 
  Fab. 
  Hopatcong 
  (Pm) 
  ; 
  Greenwood 
  Lake 
  VI, 
  Ft. 
  Lee 
  (Bt) 
  ; 
  

  

  Caldwell 
  (Cr); 
  Orange 
  Mts., 
  g. 
  d. 
  (Bf) 
  ; 
  Sea 
  Isle 
  VH, 
  4 
  (Brn). 
  

   P. 
  femoralis 
  Lee. 
  Greenwood 
  Lake, 
  Ft. 
  Lee 
  (Bt) 
  ; 
  g. 
  d., 
  rare 
  (W). 
  

  

  DENDROIDES 
  Latr. 
  

  

  D. 
  canadensis 
  Latr. 
  Hopatcong 
  (Pm); 
  Palisades 
  VII, 
  bred 
  (Lv) 
  ; 
  Cald- 
  

   well 
  (Cr) 
  ; 
  Orange 
  Mts., 
  West 
  Bergen, 
  under 
  bark 
  (Bf). 
  

   D. 
  concolor 
  Newn. 
  Snake 
  Hill 
  V 
  (Wintersteiner). 
  

  

  Family 
  MELOID^. 
  

  

  Contains 
  the 
  "oil 
  beetles" 
  and 
  "blister 
  beetles." 
  They 
  are 
  soft 
  in 
  tex- 
  

   ture, 
  usually 
  slender 
  and 
  cylindrical, 
  the 
  thorax 
  narrower 
  than 
  head 
  or 
  

   elytra, 
  the 
  antennag 
  sometimes 
  curiously 
  knotted 
  or 
  otherwise 
  modified 
  

   in 
  the 
  male, 
  the 
  insects 
  as 
  a 
  whole 
  loose-.iointed 
  and 
  sprawly 
  in 
  appear- 
  

   ance. 
  They 
  vary 
  in 
  color, 
  are 
  often 
  striped 
  and 
  spotted 
  and 
  sometimes 
  

   metallic. 
  In 
  the 
  adult 
  stage 
  they 
  feed 
  on 
  plant 
  tissue 
  and 
  are 
  sometimes 
  

   distinctly 
  injurious. 
  One 
  of 
  them, 
  known 
  as 
  the 
  "old-fashioned 
  striped 
  

   potato 
  beetle," 
  frequently 
  comes 
  in 
  late 
  summer, 
  sometimes 
  with, 
  some- 
  

   times 
  replaced 
  by 
  an 
  ally, 
  and 
  it 
  or 
  they 
  sweep 
  through 
  a 
  field 
  or 
  garden 
  

   before 
  the 
  grower 
  realizes 
  the 
  nature 
  of 
  the 
  attack. 
  They 
  attack 
  not 
  only 
  

   potatoes, 
  but 
  beets 
  and 
  a 
  great 
  variety 
  of 
  other 
  plants 
  and 
  flowers, 
  and 
  

   as 
  a 
  rule 
  disappear 
  almost 
  as 
  suddenly 
  as 
  they 
  come. 
  Some 
  species 
  re- 
  

   main 
  for 
  a 
  day 
  or 
  two 
  only; 
  others 
  stay 
  for 
  a 
  week 
  or 
  two, 
  and 
  these, 
  

   when 
  they 
  attack 
  cultivated 
  plants, 
  should 
  be 
  collected 
  in 
  kerosene 
  pans 
  

   or 
  driven 
  by 
  means 
  of 
  lime 
  or 
  other 
  repellants, 
  as 
  may 
  be 
  indicated. 
  

   Arsenites 
  kill 
  them 
  slowly 
  and 
  will 
  not 
  be 
  effective 
  until 
  they 
  have 
  done 
  

   nearly 
  or 
  quite 
  all 
  the 
  injury 
  that 
  they 
  would 
  have 
  caused 
  without 
  treat- 
  

   ment. 
  

  

  Curiously 
  enough, 
  quite 
  a 
  number 
  of 
  the 
  species 
  are 
  markedly 
  beneficial 
  

   in 
  the 
  larval 
  stage, 
  being 
  among 
  the 
  most 
  important 
  checks 
  to 
  grass- 
  

  

  