﻿AQUATIC 
  INSECTS 
  IN 
  THE 
  ADIRONDACKS 
  557 
  

  

  ciently 
  active 
  thereafter 
  to 
  kick 
  vigorously 
  whenever 
  the 
  vial 
  was 
  moved, 
  

   The 
  imagos 
  emerged 
  July 
  2, 
  ii 
  days 
  after 
  leaving 
  the 
  water. 
  The 
  pupa 
  

   makes 
  its 
  way 
  through 
  the 
  side 
  of 
  the 
  cocoon, 
  and 
  the 
  empty 
  pupal 
  skin 
  

   is 
  left 
  sticking 
  in 
  the 
  hole 
  when 
  the 
  imago 
  flies 
  away. 
  

  

  In 
  the 
  supply 
  trough 
  in 
  the 
  hatchery 
  fresh-water 
  sponges 
  of 
  small 
  size 
  

   were 
  easy 
  to 
  find, 
  and 
  I 
  saw 
  the 
  Sisyra 
  larvae 
  clinging 
  to 
  them, 
  

   crawling 
  over 
  them, 
  and 
  apparently 
  piercing 
  them 
  with 
  their 
  long, 
  sharp 
  

   decurved 
  jaws. 
  I 
  also 
  observed 
  this 
  later 
  on 
  a 
  sponge- 
  covered 
  log 
  in 
  

   Little 
  Clear 
  pond. 
  The 
  larva 
  clings 
  closely 
  to 
  the 
  sponge 
  surface, 
  lies 
  in 
  

   the 
  hollows 
  of 
  it, 
  or, 
  sometimes, 
  descends 
  bodily 
  into 
  an 
  open 
  osteole. 
  

   The 
  numerous 
  spines 
  on 
  its 
  back 
  usually 
  carry 
  a 
  load 
  of 
  debris 
  beneath* 
  

   which 
  its 
  form 
  is 
  well 
  concealed. 
  It 
  can 
  readily 
  be 
  driven 
  about 
  over 
  

   the 
  sponge 
  surface, 
  but 
  will 
  hardly 
  be 
  induced 
  to 
  take 
  a 
  step 
  away 
  from 
  

   it 
  on* 
  the 
  bare 
  wood. 
  

  

  The 
  respiratory 
  filaments 
  are 
  jointed 
  and 
  folded 
  beneath 
  the 
  abdomen. 
  

   They 
  are 
  moved 
  intermittently 
  in 
  a 
  rapid 
  shuttle-like 
  vibration. 
  

  

  Imagos 
  on 
  emergence 
  seemed 
  by 
  preference 
  to 
  fly 
  at 
  once 
  to 
  the 
  

   hatchery 
  ceiUng. 
  They 
  congregated 
  on 
  the 
  best 
  lighted 
  portions 
  of 
  it. 
  

   I 
  stood 
  in 
  one 
  spot 
  on 
  my 
  work 
  table 
  and 
  collected 
  from 
  the 
  part 
  of 
  the 
  

   ceiling 
  within 
  reach 
  hundreds 
  of 
  specimens 
  at 
  a 
  time. 
  Nothing 
  was 
  

   easier. 
  They 
  would 
  jump 
  directly 
  into 
  an 
  unstoppered 
  bottle 
  held 
  close 
  

   below 
  them. 
  Their 
  flight 
  to 
  the 
  ceiling 
  on 
  emergence 
  suggests 
  a 
  prob- 
  

   able 
  reason 
  why 
  I 
  was 
  able 
  to 
  see 
  so 
  few 
  specimens 
  out 
  of 
  doors. 
  There 
  

   they 
  probably 
  fly 
  directly 
  to 
  the 
  tree 
  tops 
  — 
  the 
  home 
  of 
  their 
  nonaquatic 
  

   kin. 
  A 
  few 
  specimens 
  were 
  taken 
  at 
  a 
  trap 
  lantern 
  placed 
  near 
  the 
  out- 
  

   let 
  of 
  Little 
  Clear 
  pond. 
  I 
  caught 
  one 
  or 
  two 
  specimens 
  close 
  above 
  

   the 
  water 
  while 
  sweeping 
  aquatic 
  vegetation 
  in 
  Little 
  Clear 
  creek. 
  These 
  

   may 
  have 
  been 
  females 
  ovipositing, 
  but 
  I 
  did 
  not 
  find 
  their 
  eggs. 
  Neither 
  

   did 
  I 
  get 
  them, 
  though 
  I 
  several 
  times 
  inclosed 
  females 
  in 
  cages 
  supplied 
  

   with 
  aquatic 
  plants 
  and 
  with 
  sponge-bearing 
  pieces 
  of 
  wood. 
  

  

  A 
  student 
  in 
  my 
  laboratory 
  at 
  Lake 
  Forest 
  college 
  is 
  working 
  on 
  the 
  

   anatomy 
  and 
  metamorphosis 
  of 
  this 
  species. 
  I 
  prefer 
  to 
  leave 
  the 
  farther 
  

   characterization 
  of 
  the 
  several 
  stages 
  to 
  the 
  paper 
  which 
  will 
  result 
  from 
  

   that 
  work. 
  

  

  CLIMACIA 
  

  

  1869 
  McLaclilaii. 
  " 
  New 
  species 
  of 
  Hemerobina, 
  with 
  synouyiiiic 
  notes", 
  Ent. 
  

   luonth. 
  mag. 
  1:27. 
  The 
  genus 
  is 
  carefully 
  cbaraeterized, 
  and 
  is 
  cor- 
  

   rectly 
  allied 
  with 
  Sisyra, 
  from 
  which 
  it 
  is 
  distinguished 
  by 
  the 
  fol- 
  

   lowing 
  characters, 
  the 
  first 
  of 
  which 
  will 
  not 
  hold: 
  

  

  1 
  A 
  single 
  basal 
  cross 
  vein 
  in 
  the 
  subcostal 
  space 
  

  

  2 
  Two 
  well 
  defined 
  series 
  of 
  gradate 
  veins 
  

  

  3 
  Pro 
  thorax 
  elongate 
  

  

  4 
  Face 
  long 
  and 
  triangular 
  

  

  ? 
  5 
  Two 
  curious 
  setiform 
  organs, 
  apparently 
  attached 
  to 
  the 
  maxillae 
  

  

  