﻿404 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  CADDIS 
  FLY 
  LARVAE 
  AND 
  PUPAE 
  

  

  15 
  Molanna 
  cinerea 
  Hagen 
  

  

  8 
  Polycentropus 
  liicidus 
  Hagen 
  

  

  2 
  Halesus 
  no. 
  i 
  {see 
  p. 
  ^6 
  j) 
  

  

  2 
  Halesus 
  no. 
  2 
  (seep. 
  568) 
  

  

  3 
  Halesus 
  no. 
  3 
  {see 
  p. 
  c^6g) 
  

   13 
  unclassified 
  ... 
  43 
  in 
  all 
  

  

  DIPTEROUS 
  LARVAE 
  AND 
  PUPAE 
  

  

  3 
  Sepedon 
  fuscipennis 
  Loevv 
  

  

  I 
  Bittacomorpha 
  clavipes 
  pupa, 
  probably 
  from 
  the 
  farthest 
  

   point 
  in 
  shore 
  

  

  7 
  Simulium 
  venustum 
  Say 
  

  

  8 
  Tabanid 
  larvae 
  (undetermined) 
  from 
  the 
  bottom 
  in 
  the 
  edge 
  of 
  the 
  

   channel 
  in 
  open 
  water 
  

  

  I 
  crane 
  fly 
  pupa 
  (undetermined) 
  

  

  107 
  gnat 
  larvae 
  (Chironomidae: 
  all 
  undetermined) 
  of 
  four 
  species 
  

  

  Numerous 
  minute 
  Ceratopogon? 
  larvae 
  were 
  observed 
  in 
  the 
  

   algae 
  associated 
  with 
  still 
  more 
  numerous 
  Limnicolous 
  oligo- 
  

   chaet 
  es 
  . 
  

  

  Second 
  plot. 
  The 
  second 
  plot 
  selected 
  for 
  study 
  was 
  in 
  the 
  upper 
  part 
  

   of 
  the 
  hatchery 
  grounds, 
  just 
  below 
  the 
  railroad 
  bridge. 
  It 
  was 
  a 
  strip 
  

   across 
  a 
  bed 
  of 
  bur 
  reeds 
  (shown 
  in 
  the 
  foreground 
  of 
  plate 
  3) 
  and 
  was 
  

   similar 
  in 
  form 
  and 
  about 
  equal 
  in 
  area 
  to 
  the 
  preceding. 
  Collections 
  

   were 
  made 
  precisely 
  as 
  before, 
  but 
  the 
  conditions 
  in 
  the 
  plot 
  were 
  some- 
  

   what 
  different; 
  the 
  water 
  was 
  of 
  about 
  the 
  same 
  depth, 
  but 
  there 
  was 
  

   more 
  of 
  a 
  current 
  flowing 
  through 
  the 
  bur 
  reeds. 
  Potamogeton 
  and 
  

   Nitella 
  and 
  filamentous 
  algae 
  were 
  perhaps 
  a 
  little 
  less 
  abundant 
  in 
  the 
  

   water 
  here, 
  specially 
  the 
  algae. 
  The 
  date 
  was 
  July 
  27. 
  

  

  The 
  hst 
  for 
  this 
  second 
  plot 
  is 
  a 
  short 
  one, 
  in 
  species, 
  if 
  not 
  in 
  individ- 
  

   uals. 
  It 
  is 
  as 
  follows 
  : 
  

  

  I 
  bullfrog, 
  Rana 
  catesbiana 
  Shaw 
  

  

  I 
  crawfish 
  (undetermined) 
  

  

  MOLLUSKS 
  

  

  13 
  snails: 
  11 
  Campeloma 
  decisum 
  Say; 
  2 
  Limnaea 
  de- 
  

   si 
  d 
  i 
  o 
  s 
  a 
  Say 
  

  

  245 
  clams, 
  mainly 
  Sphaerium 
  simile 
  Say 
  

  

  117 
  CADDIS 
  FLIES 
  

  

  27 
  Molanna 
  cinerea 
  Hagen 
  

  

  22 
  H 
  y 
  drops 
  ych 
  e 
  sp.? 
  (near 
  phalerata) 
  Hagen 
  (j-d*^ 
  p. 
  566) 
  

  

  