﻿56 
  REPORT 
  OF 
  NEW 
  JERSEY 
  vSTATE 
  ^lUSEUM. 
  

  

  The 
  species 
  belonging 
  here 
  are 
  of 
  no 
  economic 
  importance. 
  The 
  adults 
  

   are 
  known 
  as 
  "fish-flies," 
  and 
  the 
  larvae 
  of 
  some 
  of 
  them 
  make 
  good 
  bait 
  for 
  

   certain 
  kinds 
  of 
  fish; 
  otherwise 
  they 
  may 
  be 
  simply 
  classed 
  as 
  "innoxious." 
  

  

  Family 
  SIALID^. 
  

  

  CORYDALIS 
  Latr. 
  

  

  C. 
  cornuta 
  Linn. 
  Throughout 
  the 
  State, 
  but 
  more 
  common 
  northwardly, 
  

   late 
  June 
  to 
  August. 
  The 
  larvse 
  are 
  found 
  under 
  stones 
  in 
  running 
  

   streams 
  or 
  brooks, 
  and 
  are 
  known 
  as 
  "Dobsons" 
  or 
  "Hellgramites." 
  

  

  CHAULIODES 
  Latr. 
  

  

  C. 
  angusticollis 
  Hagon. 
  Middlesex 
  County 
  VII, 
  10 
  (Coll). 
  

  

  C. 
  fasciatus 
  Wlk. 
  (lunatus 
  Hagen.) 
  Newfoundland 
  VI, 
  0, 
  So. 
  Orange 
  

   (Ds); 
  Newark. 
  

  

  C. 
  pectinicornis 
  Linn. 
  Chester, 
  Paterson, 
  Springfield, 
  Orange 
  Mts., 
  Pali- 
  

   sades 
  V, 
  30, 
  New 
  Brunswick, 
  Trenton 
  VI, 
  10, 
  28, 
  Anglesea, 
  VII, 
  12 
  

   (Coll); 
  Summit 
  (U 
  S 
  Ag) 
  ; 
  Short 
  Hills 
  (Bt) 
  ; 
  Caldwell 
  (Cr) 
  ; 
  Staten 
  

   Island 
  VII 
  (Ds) 
  ; 
  seems 
  to 
  be 
  the 
  most 
  common 
  of 
  our 
  fish-flies. 
  

  

  C. 
  rastricornis 
  Ramb. 
  Staten 
  Island 
  VI, 
  6 
  (Ds); 
  Anglesea 
  VI, 
  25 
  (Coll). 
  

  

  C. 
  serricornis 
  Say. 
  Paterson 
  VI, 
  6, 
  New 
  Brunswick, 
  Mercer 
  Co. 
  VI, 
  10, 
  

   Lakewood 
  (Coll); 
  Tuckerton 
  VI, 
  14, 
  common 
  (Gr) 
  ; 
  Caldwell 
  (Cr). 
  

  

  Fig. 
  i3.~- 
  l'",ai-ly 
  stages 
  of 
  Corydalis 
  cornuta: 
  a, 
  egg-mass 
  on 
  leaf; 
  b, 
  same, 
  detached, 
  from 
  

  

  the 
  under 
  side 
  — 
  natural 
  size; 
  c, 
  single 
  eggs, 
  enlarged; 
  d, 
  newly 
  hatched 
  larva, 
  

  

  enlarged; 
  with 
  structural 
  details 
  yet 
  further 
  enlarged 
  c 
  to 
  /. 
  

  

  