﻿(F) 
  

   EXPLANATION 
  OF 
  PLATES. 
  

  

  PlateslI, 
  IV, 
  V, 
  VII, 
  VIII, 
  IX, 
  XIV, 
  are 
  from 
  photographs 
  by 
  E. 
  P. 
  Felt. 
  Plates 
  X, 
  XI, 
  XII, 
  

   XIII, 
  are 
  from 
  photographs 
  by 
  W. 
  W. 
  Byington. 
  

  

  Plate 
  I. 
  

   Ecpantheria 
  scribonia. 
  

  

  The 
  Great 
  White 
  Leopard 
  Moth. 
  

  

  The 
  upper 
  three 
  figures 
  are 
  males; 
  the 
  lowest 
  two, 
  females: 
  showing 
  

   the 
  variations 
  in 
  maculation 
  in 
  this 
  species. 
  

  

  Plate 
  II. 
  

   Leucania 
  unipuncta. 
  

  

  The 
  Ar??iy- 
  Worm 
  

  

  Army-worms 
  at 
  work 
  on 
  a 
  corn 
  plant, 
  nearly 
  natural 
  size 
  (after 
  Slinger- 
  

   land). 
  

  

  Plate 
  III. 
  

  

  Leucania 
  unipuncta. 
  

  

  The 
  Arffiy- 
  Worm. 
  

  

  Fig. 
  a. 
  — 
  Moth 
  at 
  rest, 
  natural 
  size 
  ; 
  b, 
  moth 
  with 
  wings 
  expanded 
  ; 
  

   c, 
  moth 
  twice 
  natural 
  size; 
  lower 
  figures, 
  light 
  and 
  dark 
  

   varieties 
  of 
  army-worms, 
  twice 
  natural 
  size 
  (after 
  Slinger- 
  

   land). 
  

  

  Plate 
  IV. 
  

  

  Fig. 
  I 
  — 
  Larval 
  spines 
  of 
  Ecpajitheria 
  scribonia, 
  thirty-five 
  times 
  nat- 
  

   ural 
  size. 
  

  

  Fig. 
  2. 
  — 
  Heads 
  of 
  timothy 
  eaten 
  by 
  army-worms, 
  nearly 
  natural 
  size. 
  

  

  Fig. 
  3. 
  — 
  Tips 
  of 
  grape 
  vines 
  infested 
  with 
  larvae 
  of 
  Oxyptilus 
  perisceli- 
  

  

  dactylus, 
  natural 
  size. 
  

   Fig. 
  4. 
  — 
  Young 
  and 
  nearly 
  full-grown 
  larvae 
  of 
  Oxyptilus, 
  about 
  three 
  

  

  times 
  natural 
  size. 
  

  

  Fig. 
  5. 
  — 
  Pupae 
  of 
  same, 
  about 
  three 
  times 
  natural 
  size 
  

  

  25 
  

  

  