﻿492 
  REPORT 
  OF 
  NEW 
  JERSEY 
  STATE 
  MUSEUM. 
  

   Family 
  LASIOCAMPID^. 
  

  

  stoutly 
  built, 
  rather 
  shaggy 
  moths 
  of 
  medium 
  size, 
  with 
  pectinated 
  

   antennse, 
  small 
  retracted 
  head, 
  slender 
  palpi 
  and 
  short 
  tongue. 
  The 
  

   wings 
  are 
  rather 
  short 
  and 
  broad, 
  very 
  densely 
  clothed, 
  usually 
  with 
  

   pale 
  or 
  darker 
  median 
  lines. 
  The 
  larvae 
  are 
  "lappet" 
  or 
  "tent" 
  caterpil- 
  

   lars, 
  and 
  some 
  of 
  the 
  latter 
  are 
  of 
  economic 
  importance. 
  

  

  The 
  lappet-caterpillars 
  are 
  so 
  called 
  because 
  they 
  are 
  much 
  flattened 
  

   and 
  have 
  along 
  the 
  sides 
  fringed 
  processes 
  which, 
  when 
  at 
  rest, 
  are 
  so 
  

   closely 
  applied 
  to 
  the 
  surface 
  upon 
  which 
  they 
  lie 
  that 
  the 
  insect 
  be- 
  

   comes 
  practically 
  invisible. 
  None 
  of 
  these 
  ever 
  occur 
  in 
  harmful 
  num- 
  

   bers. 
  The 
  "tent-caterpillars" 
  live 
  in 
  great 
  colonies, 
  and 
  sometimes 
  de- 
  

   foliate 
  entire 
  trees 
  or 
  even 
  large 
  stretches 
  of 
  forest 
  or 
  orchard. 
  In 
  this 
  

   family 
  the 
  terms 
  "Phyllodesma" 
  and 
  "Clisiocampa" 
  used 
  in 
  the 
  last 
  

   edition 
  are 
  replaced 
  by 
  "Epicnaptera" 
  and 
  "Malacosoma," 
  respectively. 
  

  

  ARTACE 
  Wlk. 
  

  

  A. 
  punctistriga 
  Wlk. 
  Elizabeth 
  V, 
  VI, 
  XI, 
  6 
  (Bz) 
  ; 
  X, 
  8 
  (Kp) 
  ; 
  Newark 
  

   (Soc); 
  Freehold 
  (U 
  S 
  Ag) 
  ; 
  Delair 
  X, 
  6 
  (Dke) 
  ; 
  rare. 
  The 
  larva 
  

   feeds 
  on 
  oak. 
  

  

  TOLYPE 
  Hbn. 
  

  

  T. 
  velleda 
  Stoll. 
  Occurs 
  throughout 
  the 
  State, 
  rarely; 
  adults 
  in 
  Sep- 
  

   tember 
  and 
  October. 
  Mr. 
  Grossbeck 
  reports 
  eggs 
  at 
  Plainfield 
  V, 
  

   16, 
  larvae 
  V, 
  18-IX, 
  16, 
  therefore 
  growing 
  very 
  slowly. 
  Pupae 
  are 
  

   reported 
  as 
  early 
  as 
  VII, 
  15, 
  26 
  at 
  Woodridge, 
  by 
  Wormsbacher. 
  

   Larva 
  feeds 
  on 
  apple, 
  pear, 
  cherry, 
  maple, 
  oak, 
  elm, 
  willow, 
  lilac, 
  etc. 
  

  

  T. 
  laricis 
  Fitch. 
  Woodridge 
  IX, 
  10 
  (Wrms) 
  ; 
  near 
  New 
  York 
  (Bt) 
  ; 
  New- 
  

   ark, 
  at 
  light 
  (Ang). 
  The 
  larva 
  occurs 
  rarely 
  on 
  pine, 
  larch 
  and 
  

   hemlock, 
  and 
  will 
  probably 
  be 
  found 
  throughout 
  at 
  least 
  North 
  

   Jersey. 
  

  

  MALACOSOMA 
  Hbn. 
  

  

  M. 
  disstria 
  Hbn. 
  The 
  "forest 
  tent 
  caterpillar," 
  so 
  called, 
  although 
  it 
  

   really 
  makes 
  na 
  tent. 
  Occurs 
  throughout 
  the 
  State, 
  rarely 
  in 
  

   orchards, 
  more 
  commonly 
  on 
  forest 
  trees; 
  yet 
  never 
  abundant 
  

   enough, 
  in 
  my 
  experience 
  to 
  cause 
  trouble. 
  More 
  common 
  in 
  North 
  

   Jersey, 
  and 
  in 
  New 
  York 
  State 
  has 
  been 
  very 
  destructive. 
  The 
  

   moths 
  come 
  in 
  June 
  and 
  July, 
  lay 
  their 
  eggs 
  in 
  a 
  belt 
  around 
  small 
  

   twigs, 
  but 
  do 
  not 
  cover 
  them 
  with 
  a 
  frothy 
  varnish. 
  

  

  M. 
  americana 
  Fabr. 
  The 
  common 
  "tent 
  caterpillar," 
  which 
  occurs 
  on 
  

   orchard 
  and 
  some 
  other 
  trees 
  in 
  early 
  spring. 
  The 
  eggs 
  are 
  laid 
  

   in 
  July 
  in 
  a 
  belt 
  around 
  small 
  twigs, 
  covered 
  with 
  a 
  frothy 
  varnish, 
  

   and 
  so 
  pass 
  the 
  winter. 
  The 
  larvae 
  hatch 
  as 
  the 
  buds 
  open 
  or 
  even 
  

   before, 
  and 
  form 
  a 
  nest 
  or 
  web 
  in 
  a 
  crotch 
  or 
  fork. 
  This 
  web 
  in- 
  

   creases 
  in 
  size 
  as 
  the 
  colony 
  develops 
  and 
  the 
  larvae 
  feed 
  at 
  night 
  

  

  