﻿728 
  REPORT 
  OF 
  NEW 
  JERSEY 
  STATE 
  MUSEUM. 
  

  

  Fig. 
  297. 
  — 
  The 
  Hessian 
  fly, 
  Mayetiola 
  destructor: 
  on 
  the 
  left 
  a 
  healthy 
  stalk 
  of 
  wheat 
  

   and 
  on 
  the 
  right 
  one 
  infested 
  at 
  h 
  by 
  the 
  "fly," 
  showing 
  galls; 
  a, 
  egg; 
  b, 
  larva; 
  c, 
  flax- 
  

   seed; 
  d, 
  pupa; 
  all 
  very 
  much 
  enlarged; 
  c, 
  fly 
  ovipositing 
  on 
  leaf, 
  natural 
  size; 
  /, 
  female; 
  

   g, 
  male 
  fly, 
  much 
  enlarged; 
  i, 
  the 
  parasite, 
  Merisus 
  destructor; 
  also 
  much 
  enlarged. 
  

  

  