﻿578 
  REPORT 
  OF 
  NEW 
  JERSEY 
  STATE 
  MUSEUM. 
  

  

  two 
  weeks 
  or 
  less, 
  drops 
  to 
  the 
  ground 
  and 
  spins 
  a 
  tough 
  little 
  cocoon, 
  

   in 
  which 
  it 
  remains 
  as 
  a 
  larva 
  until 
  the 
  following 
  April. 
  The 
  difficulty 
  

   of 
  keeping 
  them 
  alive 
  for 
  eleven 
  months 
  explains 
  why 
  so 
  little 
  is 
  known 
  

   of 
  the 
  life 
  history. 
  

  

  Family 
  HEPIALID^. 
  

  

  STHENOPIS 
  Pack. 
  

  

  S. 
  argenteomaculatus 
  Harr. 
  Caldwell 
  (Cr) 
  ; 
  Ft. 
  Lee 
  VI 
  (Bt) 
  ; 
  Newark 
  

   VI 
  (Sb): 
  larva 
  in 
  roots 
  of 
  alder, 
  and 
  requires 
  three 
  years 
  to 
  mature 
  

   (Bt). 
  

  

  S. 
  auratus 
  Grt. 
  Very 
  rare 
  near 
  Newark 
  and 
  New 
  York; 
  nothing 
  is 
  

   known 
  of 
  its 
  early 
  stages. 
  

   Besides 
  the 
  above, 
  "S. 
  quadriguttatus" 
  Grt., 
  "Hepialus 
  mustelina" 
  

  

  Pack, 
  and 
  "H. 
  gracilis" 
  Grt. 
  are 
  almost 
  certain 
  to 
  occur 
  in 
  New 
  Jersey. 
  

  

  Family 
  MICROPTERYGID^. 
  

  

  ERIOCRANIA 
  Zell. 
  

   E. 
  auricyanea 
  Wlsm. 
  Almost 
  certain 
  to 
  occur 
  in 
  New 
  Jersey. 
  

   E. 
  griseocapitella 
  Wlsm. 
  Essex 
  Co. 
  IV, 
  21, 
  V, 
  4; 
  very 
  rare, 
  occasional 
  

   on 
  tree 
  trunk 
  or 
  flying 
  in 
  sunshine 
  in 
  open 
  wood. 
  

  

  EPIMARTYRIA 
  Wlsm. 
  

  

  E. 
  auricrinella 
  Wlsm. 
  Essex 
  Co. 
  VI, 
  3-8; 
  in 
  some 
  abundance 
  in 
  damp, 
  

  

  open 
  wood 
  at 
  4 
  P. 
  M., 
  near 
  bank 
  of 
  a 
  brook, 
  resting 
  on 
  stems 
  and 
  

  

  leaves 
  of 
  grasses 
  or 
  weeds 
  from 
  6 
  "to 
  18 
  inches 
  above 
  the 
  ground; 
  

  

  earlier 
  than 
  this 
  and 
  half 
  an 
  hour 
  later 
  not 
  one 
  was 
  to 
  be 
  found. 
  

  

  There 
  is 
  also 
  an 
  undetermined 
  species 
  with 
  Mr. 
  Daecke, 
  taken 
  at 
  

  

  Brown's 
  Mills 
  V, 
  13. 
  

  

  