﻿564 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  / 
  Tubercles 
  low 
  and 
  broad, 
  pronotum 
  quadrilateral, 
  claws 
  with 
  two 
  

  

  basal 
  hooks 
  Sericostoma, 
  Oecismus, 
  Notidobia 
  

  

  ;ff 
  Tubercles 
  conical, 
  pronotum 
  transversely 
  elliptical 
  

  

  Goera, 
  Silo, 
  Lithax 
  

   ee 
  No 
  dorsal 
  tubercle 
  

   / 
  No 
  lateral 
  tubercles 
  

  

  Brachycentrus, 
  Oligopletrum, 
  Micrasema 
  

   ff 
  Lateral 
  tubercles 
  present 
  

  

  Crunoecia, 
  L 
  ep 
  idost 
  oma, 
  Lasiocephala 
  

   lib 
  Hind 
  legs 
  more 
  than 
  twice 
  as 
  long 
  as 
  the 
  first 
  pair, 
  abdominal 
  constrictions 
  

  

  slight, 
  cylindric 
  case 
  of 
  sand 
  and 
  small 
  stones 
  Leptoceridae 
  

  

  aa 
  Larva 
  campodeiform, 
  i. 
  e. 
  with 
  head 
  in 
  line 
  with 
  the 
  main 
  axis 
  of 
  the 
  body, 
  

   tubercles 
  and 
  lateral 
  fringe 
  wanting, 
  gill 
  filaments, 
  when 
  present, 
  branched 
  

   & 
  Abdomen 
  little, 
  if 
  any, 
  thicker 
  than 
  the 
  thorax 
  

   c 
  Third 
  pair 
  of 
  legs 
  about 
  the 
  same 
  length 
  as 
  first 
  pair, 
  no 
  portable 
  larval 
  

  

  case 
  Hydropsychidae 
  

  

  cc 
  Third 
  pair 
  of 
  legs 
  a 
  little 
  longer 
  than 
  the 
  first. 
  No 
  larval 
  cases 
  

  

  Rhyacoph 
  ilidae 
  

  

  &6 
  Abdomen 
  much 
  thicker 
  than 
  the 
  thorax: 
  case 
  kidney 
  shaped, 
  of 
  small 
  

  

  stones, 
  or 
  flat 
  and 
  parchment-like 
  Hy 
  drop 
  tilidae 
  

  

  SPECIES 
  REARED 
  AT 
  SARANAC 
  INN 
  

  

  Molanna 
  cinerea 
  Hagen 
  

  

  Plate 
  13, 
  figures 
  1-6 
  

  

  1861 
  Molanna 
  cinerea 
  Hagen, 
  Synopsis 
  Neur. 
  N. 
  Am. 
  p. 
  276 
  

   1892 
  Molanna 
  cinerea 
  Banks, 
  Am. 
  ent. 
  soc. 
  Trans. 
  19:366 
  (listed) 
  

  

  Habitat. 
  Larvae 
  and 
  pupae 
  v^^ere 
  found 
  in 
  great 
  abundance 
  on 
  sand 
  

   bottoms 
  with 
  little 
  or 
  no 
  vegetation. 
  Adults 
  rest 
  on 
  vegetation 
  or 
  other 
  

   support 
  near 
  the 
  place 
  of 
  emergence, 
  their 
  appearance, 
  specially 
  their 
  

   position 
  (pi. 
  13, 
  fig. 
  5), 
  with 
  antennae 
  laid 
  flat 
  on 
  support, 
  wings 
  and 
  

   abdomen 
  elevated, 
  causing 
  them 
  to 
  be 
  easily 
  mistaken 
  for 
  small 
  snags. 
  

  

  Occurrence. 
  Abundant 
  throughout 
  the 
  period 
  of 
  work. 
  

  

  Case. 
  (PI. 
  13, 
  fig. 
  6) 
  Flat 
  case 
  of 
  sand 
  and 
  very 
  fine 
  stones. 
  

   Rounded 
  at 
  both 
  ends. 
  Forward 
  end 
  extended 
  on 
  dorsal 
  side, 
  forming 
  

   a 
  protection 
  to 
  the 
  larva 
  even 
  when 
  reaching 
  out 
  of 
  its 
  case. 
  Length 
  20 
  

   mm. 
  Greatest 
  width 
  of 
  10 
  mm 
  near 
  the 
  forward 
  end. 
  

  

  Larva. 
  (PI. 
  135 
  fig- 
  J-2) 
  Length 
  12 
  mm. 
  Width 
  2 
  mm. 
  The 
  head, 
  

   prothorax, 
  and 
  mesothorax 
  are 
  light 
  brown 
  or 
  yellowish. 
  Metathorax 
  and 
  

   abdomen 
  are 
  light 
  green 
  . 
  A 
  black 
  Y-shaped 
  line 
  extends 
  over 
  the 
  head 
  and 
  

   prothorax, 
  the 
  arms 
  of 
  the 
  Y 
  running 
  from 
  the 
  corners 
  of 
  the 
  mouth 
  and 
  

   joining 
  at 
  the 
  rear 
  of 
  the 
  head. 
  The 
  pedicel 
  of 
  the 
  Y 
  extends 
  over 
  the 
  

  

  