﻿544 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  hairs; 
  lateral 
  filaments 
  more 
  or 
  less 
  distinctly 
  5-segmented, 
  tapering, 
  

   sparsely 
  fringed 
  with 
  hairs, 
  increasing 
  in 
  length 
  posteriorly, 
  on 
  segment 
  i 
  

   as 
  long 
  as 
  the 
  width 
  of 
  that 
  segment; 
  on 
  segment 
  7 
  twice 
  as 
  long 
  as 
  

   on 
  I. 
  

  

  Body 
  smooth 
  ; 
  legs 
  smooth 
  at 
  bases, 
  hairy 
  toward 
  the 
  tip, 
  yellow 
  ; 
  

   tarsal 
  claws 
  unequal, 
  tipped 
  with 
  black. 
  As 
  with 
  other 
  semi 
  -burro 
  wers 
  

   and 
  burrowers, 
  the 
  forelegs 
  are 
  closer 
  together 
  at 
  base 
  that 
  are 
  the 
  legs 
  

   of 
  the 
  other 
  pairs. 
  

  

  Pupa. 
  (PI. 
  29, 
  fig. 
  2.) 
  Length 
  (coiled) 
  9 
  mm 
  ; 
  width 
  of 
  head 
  3.7 
  mm, 
  

   of 
  abdomen 
  4 
  mm. 
  

  

  Body 
  clad 
  with 
  soft, 
  fine 
  hairs, 
  specially 
  on 
  head 
  and 
  thorax; 
  head 
  

   and 
  appendages 
  pale 
  yellow, 
  varying 
  with 
  age. 
  Thoracic 
  dorsum 
  yel- 
  

   lowish 
  with 
  broad, 
  brownish 
  or 
  purplish 
  marks 
  at 
  sides 
  and 
  on 
  front 
  

   margins 
  of 
  segments 
  ; 
  abdomen 
  short, 
  thick, 
  accurate, 
  with 
  obtuse 
  but 
  

   promment 
  lateral 
  margins, 
  narrowed 
  a 
  little 
  at 
  both 
  ends 
  ; 
  no 
  sharp 
  

   angles 
  or 
  spines 
  on 
  any 
  of 
  the 
  segments; 
  apical 
  segments 
  mainly 
  } 
  ellow 
  ; 
  

   the 
  others 
  suffused 
  more 
  or 
  less 
  with 
  brown 
  or 
  purple 
  tending 
  to 
  be 
  

   arranged 
  in 
  a 
  pattern 
  as 
  follows 
  : 
  a 
  middorsal, 
  narrow 
  line 
  ; 
  a 
  dorsolateral 
  

   interrupted 
  band 
  ; 
  a 
  lateral 
  row 
  of 
  dots, 
  three 
  ventral 
  rows 
  each 
  side 
  of 
  

   unequal 
  marks, 
  confluent 
  in 
  stripes 
  or 
  interrupted 
  ; 
  sutures 
  all 
  darker. 
  

   There 
  is 
  a 
  transverse, 
  anteapical, 
  impressed 
  line 
  of 
  brown 
  on 
  the 
  middle 
  

   abdominal 
  segments. 
  

  

  CHAULIODES 
  

  

  Of 
  the 
  eight 
  nominal 
  North 
  American 
  species 
  of 
  this 
  genus, 
  but 
  two 
  

   are 
  recorded 
  from 
  this 
  state. 
  These 
  two 
  and 
  a 
  third 
  occur 
  at 
  Saranac 
  

   Inn. 
  

  

  These 
  insects 
  are 
  less 
  secretive 
  than 
  those 
  in 
  other 
  genera 
  of 
  the 
  

   family. 
  Imagos 
  of 
  some 
  species 
  ofChauliodes 
  at 
  least 
  are 
  abroad 
  

   habitually 
  during 
  hours 
  of 
  sunshine, 
  making 
  short, 
  fluttering 
  flights 
  

   from 
  stem 
  to 
  stem. 
  They 
  rest 
  most 
  of 
  the 
  time 
  : 
  resting 
  or 
  flying, 
  they 
  

   are 
  easily 
  taken 
  with 
  a 
  net. 
  

  

  The 
  eggs 
  are 
  placed 
  in 
  somewhat 
  regular 
  rows 
  on 
  the 
  surface 
  of 
  some 
  

   leaf 
  or 
  other 
  support; 
  sometimes 
  over 
  water, 
  but 
  oftener 
  at 
  a 
  short 
  

   distance 
  from 
  it. 
  ^ 
  

  

  The 
  larvae 
  Hve 
  in 
  wet 
  places 
  at 
  the 
  edge 
  of 
  the 
  water, 
  or 
  in 
  water 
  

   close 
  to 
  the 
  surface, 
  and 
  are 
  perhaps 
  oftenest 
  found 
  clinging 
  to 
  the 
  under 
  

   side 
  of 
  floating 
  logs 
  or 
  crawling 
  beneath 
  the 
  loosened 
  bark. 
  They 
  crawl 
  

   rapidly 
  and 
  cling 
  securely 
  by 
  means 
  of 
  the 
  claws 
  on 
  the 
  thoracic 
  legs 
  and 
  

   on 
  the 
  bifurcated 
  tenth 
  abdominal 
  segment. 
  They 
  swim 
  but 
  poorly 
  by 
  

   means 
  of 
  undulations 
  of 
  the 
  abdomen 
  and 
  hishing 
  of 
  the 
  lateral 
  filaments. 
  

  

  The 
  lateral 
  filaments 
  are 
  less 
  important 
  respiratory 
  organs 
  than 
  in 
  

   Sialis. 
  While 
  they 
  contain 
  tracheae, 
  they 
  also 
  contain 
  a 
  larger 
  pro- 
  

   portion 
  of 
  muscle 
  and 
  are 
  covered 
  by 
  thicker 
  integument. 
  There 
  are 
  

   nine 
  pairs 
  of 
  well 
  developed' 
  spiracles, 
  one 
  pair 
  in 
  the 
  sides 
  of 
  the 
  pro- 
  

   thprax 
  at 
  its 
  hind 
  margin, 
  and 
  one 
  on 
  each 
  of 
  the 
  first 
  eight 
  abdominal 
  

  

  