﻿460 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  Dorsal 
  hooks 
  of 
  abdomen 
  represented 
  only 
  by 
  minute 
  backward 
  pro- 
  

   longations 
  of 
  the 
  median 
  ridge 
  on 
  all 
  the 
  segments; 
  lateral 
  spines 
  on 
  

   segments 
  7-9, 
  increasing 
  in 
  size 
  posteriorly, 
  small, 
  on 
  the 
  ninth 
  segment 
  

   much 
  shorter 
  than 
  the 
  loth 
  segment, 
  against 
  which 
  they 
  are 
  closely 
  ap- 
  

   pressed; 
  loth 
  segment 
  two 
  thirds 
  as 
  long 
  as 
  the 
  eighth, 
  and 
  a 
  little 
  less 
  

   than 
  half 
  as 
  long 
  as 
  the 
  ninth. 
  

  

  Labium 
  with 
  its 
  median 
  lobe 
  distinctly 
  convex 
  anteriorly, 
  and 
  with 
  a 
  

   brown 
  tooth 
  in 
  the 
  middle 
  in 
  the 
  midst 
  of 
  the 
  usual 
  flat, 
  fringing 
  hairs 
  ; 
  

   lateral 
  lobe 
  regularly 
  arcuate, 
  with 
  about 
  nine 
  coarse, 
  trapezoidal, 
  ser- 
  

   rately 
  recurved 
  teeth 
  on 
  its 
  inner 
  margin. 
  

  

  A 
  goodly 
  number 
  of 
  specimens 
  of 
  the 
  nymphs 
  were 
  collected 
  from 
  Little 
  

   dear 
  creek 
  on 
  the 
  hatchery 
  grounds, 
  Little 
  Clear 
  pond 
  near 
  its 
  outlet, 
  

   and 
  from 
  Bone 
  pond. 
  

  

  Gomphus 
  villosipes 
  Selys 
  

  

  1854 
  Gomphus 
  villosipes 
  Selys, 
  Acad. 
  Belg. 
  (2) 
  Bal. 
  21 
  : 
  53 
  

   1861 
  Gomphus 
  villosipes 
  Hagen, 
  Synopsis 
  Neur. 
  N. 
  Am. 
  p. 
  105 
  

   1890 
  Aeshna 
  villosipes 
  Kirby, 
  Cat. 
  Neur. 
  Odon. 
  p. 
  64 
  (bibliography) 
  

  

  1893 
  Gomphus 
  villosipes 
  Calvert, 
  Am. 
  ent. 
  soc. 
  Traus. 
  20:244-45 
  (de- 
  

  

  scription) 
  

  

  1894 
  Gomphus 
  villosipes 
  Banks, 
  Cao. 
  ent. 
  26: 
  77 
  (listed 
  from 
  Ithaca) 
  

  

  1895 
  Gomphus 
  villosipes 
  Calvert, 
  N. 
  Y. 
  ent. 
  soc. 
  Jour. 
  3 
  :45 
  (listed 
  from 
  

  

  Ithaca) 
  

   1897 
  Gomphus 
  villosipes 
  Van 
  Duzee, 
  N. 
  Y. 
  ent. 
  soc. 
  Jour. 
  5 
  : 
  89 
  (listed 
  

  

  from 
  Grand 
  Island) 
  

   1897 
  G 
  o 
  m 
  p 
  h 
  u 
  s 
  V 
  i 
  1 
  1 
  o 
  sip 
  e 
  s 
  Calvert, 
  N. 
  Y. 
  ent. 
  soc. 
  Jour. 
  5:93 
  (listed 
  

  

  from 
  Grand 
  Island) 
  

   1897 
  Gomphus 
  villosipes 
  Needham, 
  Can. 
  ent. 
  29: 
  166 
  (note 
  on 
  rearing 
  

  

  the 
  nymph 
  at 
  Ithaca) 
  

  

  1899 
  Gomphus 
  villosipes 
  Kellicott, 
  Odon. 
  Ohio, 
  p. 
  63 
  (description 
  and 
  

  

  figure) 
  

  

  1900 
  Gomphus 
  villosipes 
  Williamson, 
  Dragon 
  flies 
  Ind. 
  p. 
  291 
  

  

  This 
  is 
  an 
  exceedingly 
  common 
  species 
  at 
  Ithaca, 
  where 
  I 
  have 
  picked 
  

   up 
  thousands 
  of 
  the 
  exuviae 
  at 
  a 
  time 
  along 
  the 
  borders 
  of 
  the 
  Cascade 
  

   pond 
  in 
  June. 
  The 
  imagos 
  fly 
  about 
  or 
  rest 
  on 
  the 
  snags 
  and 
  pro- 
  

   jecting 
  rocks, 
  which 
  are 
  common 
  in 
  the 
  turbulent 
  creeks 
  about 
  Ithaca. 
  

   The 
  nymphs 
  burrow 
  in 
  the 
  bottom 
  in 
  shallow 
  water, 
  seeming 
  to 
  prefer 
  

   banks 
  of 
  somewhat 
  clayey 
  mud. 
  They 
  are 
  slow 
  moving, 
  stiffly 
  sprawl- 
  

   ing 
  creatures, 
  powerful, 
  rapacious, 
  and 
  seemingly 
  the 
  dominant 
  animals 
  

   in 
  the 
  bottom 
  mire. 
  

  

  Nymph. 
  Total 
  length 
  35 
  mm; 
  abdomen 
  23 
  mm; 
  hind 
  femur 
  

   7.5 
  mm 
  ; 
  width 
  of 
  head 
  6 
  mm, 
  of 
  abdomen 
  8.5 
  mm. 
  

  

  Body 
  depressed, 
  with 
  legs 
  wide 
  apart 
  and 
  very 
  sprawling; 
  abdomen 
  

   lanceolate, 
  pointed, 
  rapidly 
  narrowed 
  beyond 
  the 
  fifth 
  to 
  the 
  base 
  of 
  the 
  

   ninth 
  segmt^nt, 
  more 
  slowly 
  narrowed 
  thereafter. 
  The 
  whole 
  body 
  and 
  

   all 
  appendages, 
  clothed 
  with 
  a 
  dense 
  scurfy 
  pubescence, 
  which 
  is 
  con- 
  

   spicuously 
  marked 
  with 
  bare 
  lines 
  or 
  "scars." 
  

  

  