﻿312 
  REPORT 
  OF 
  NEW 
  JERSEY 
  STATE 
  MUSEUM. 
  

   Family 
  SCARAB^ID^. 
  

  

  These 
  are 
  the 
  "lamellicorn" 
  beetles 
  in 
  which 
  the 
  antenna 
  has 
  an 
  oval 
  

   club 
  composed 
  of 
  from 
  three 
  to 
  seven 
  leaves 
  or 
  lamellse 
  at 
  the 
  tip, 
  and 
  

   this 
  is 
  usually 
  much 
  longer 
  in 
  the 
  male. 
  The 
  leaves 
  are 
  closely 
  opposable, 
  

   so 
  that, 
  when 
  at 
  rest, 
  the 
  club 
  seems 
  solid. 
  The 
  species 
  vary 
  much 
  in 
  

   appearance, 
  and 
  range 
  from 
  small 
  to 
  very 
  large; 
  in 
  habit 
  from 
  feeders 
  on 
  

   leaves 
  to 
  burrowers 
  in 
  excrement. 
  In 
  all 
  of 
  them 
  

   the 
  legs 
  are 
  formed 
  for 
  digging, 
  the 
  fore-tibise 
  being 
  

   almost 
  always 
  flattened 
  and 
  toothed 
  at 
  the 
  outer 
  

   edge. 
  The 
  tarsi 
  are 
  generally 
  long 
  except 
  on 
  the 
  

   fore-legs, 
  and 
  always 
  5-jointed, 
  so 
  that 
  the 
  species 
  

   are 
  easily 
  recognizable. 
  

  

  The 
  larv£e 
  are 
  white-grubs 
  and 
  live 
  in 
  decaying 
  

   wood, 
  in 
  excrement, 
  in 
  decaying 
  vegetation 
  gener- 
  

   ally 
  or 
  in 
  the 
  ground 
  on 
  the 
  roots 
  of 
  plants. 
  They 
  

   are 
  white 
  or 
  yellowish 
  in 
  color, 
  with 
  a 
  brown, 
  horny 
  

   head 
  bearing 
  prominent 
  mandibles, 
  and 
  are 
  much 
  

   wrinkled 
  and 
  enlarged 
  toward 
  the 
  posterior 
  extrem- 
  

   ity, 
  where 
  they 
  end 
  in 
  a 
  smooth, 
  obtusely 
  rounded, 
  

   often 
  discolored 
  sac. 
  Their 
  position 
  is 
  partly 
  coiled 
  

   up, 
  the 
  tip 
  of 
  the 
  abdomen 
  usually 
  about 
  touching 
  

   the 
  long 
  spiny 
  legs. 
  

  

  The 
  feeders 
  in 
  decaying 
  and 
  excrementitious 
  mat- 
  

   ter 
  are 
  useful 
  or 
  harmless; 
  but 
  so 
  much 
  cannot 
  be 
  

   said 
  for 
  those 
  that 
  feed 
  under 
  ground 
  on 
  the 
  roots 
  

   of 
  plants. 
  Grass 
  lands 
  are 
  very 
  apt 
  to 
  become 
  in- 
  

   fested, 
  and 
  sometimes 
  lawns 
  are 
  completely 
  destroyed 
  by 
  grubs 
  which 
  

   shear 
  off 
  every 
  root, 
  leaving 
  the 
  tops 
  to 
  wither. 
  Field 
  crops 
  after 
  grass 
  

   often 
  suffer 
  severely, 
  and 
  in 
  this 
  State 
  strawberries 
  are 
  among 
  those 
  

   most 
  injured. 
  

  

  Remedial 
  measures 
  are 
  unsatisfactory 
  where 
  once 
  the 
  grubs 
  have 
  

   established 
  themselves, 
  and 
  methods 
  in 
  avoidance 
  are 
  usually 
  recom- 
  

   mended. 
  Fall 
  plowing 
  old 
  sod 
  is 
  good 
  practice, 
  and 
  if 
  chickens 
  follow 
  

   the 
  plow 
  or 
  hogs 
  are 
  allowed 
  to 
  run 
  in 
  the 
  infested 
  field 
  they 
  will 
  dis- 
  

   pose 
  of 
  large 
  numbers 
  of 
  them. 
  

  

  In 
  rare 
  cases, 
  e. 
  g. 
  the 
  rose-chafer, 
  it 
  is 
  the 
  adult 
  and 
  not 
  the 
  larva 
  

   that 
  becomes 
  injurious, 
  and 
  the 
  method 
  of 
  treatment 
  must 
  be 
  modified 
  

   accordingly. 
  So 
  "May 
  beetles" 
  or 
  "June 
  bugs" 
  sometimes 
  attack 
  fruit 
  

   blossoms 
  by 
  eating 
  into 
  the 
  stem, 
  and 
  in 
  such 
  cases 
  the 
  arsenites 
  are 
  

   of 
  use. 
  

  

  CANTHON 
  Hoffm. 
  

  

  C. 
  ebenus 
  Say. 
  Seashore, 
  rare 
  (Li). 
  The 
  species 
  of 
  this 
  genus 
  are 
  

   "tumble 
  bugs," 
  making 
  large 
  pellets 
  of 
  dung, 
  in 
  which 
  they 
  lay 
  their 
  

   eggs 
  and 
  which 
  they 
  afterward 
  bury. 
  

  

  C. 
  lecontei 
  Harold. 
  Lakehurst 
  VII 
  (Bf) 
  ; 
  DaCosta 
  VII 
  (W) 
  ; 
  Clementon 
  

  

  V, 
  22, 
  Lucaston 
  VIII, 
  27 
  (Brn) 
  ; 
  along 
  shore 
  Brigantine 
  to 
  Cape 
  May 
  

  

  VI, 
  VII 
  (div). 
  

  

  Fig. 
  124. 
  — 
  Antenna 
  

  

  of 
  a 
  I^ameUicorn 
  

  

  beetle 
  to 
  show 
  

  

  the 
  structure 
  

  

  of 
  club. 
  

  

  