﻿THE 
  INSECTS 
  OF 
  XEW 
  JERSEY 
  

  

  73 
  

  

  Family 
  GESTRID.E. 
  

  

  These 
  are 
  the 
  "bot-flies," 
  usually 
  of 
  good 
  size, 
  sometimes 
  very 
  large, 
  

   and 
  peculiar 
  by 
  having 
  the 
  mouth 
  parts 
  almost 
  entirely 
  aborted. 
  Some 
  

   are 
  hairy, 
  j-ellow, 
  with 
  rather 
  a 
  pointed 
  abdomen; 
  others 
  are 
  very 
  plump, 
  

   blue 
  black, 
  with 
  a 
  white 
  bloom, 
  and 
  very 
  formidable 
  in 
  appearance. 
  The 
  

   larvae 
  live 
  in 
  the 
  nasal 
  passages, 
  in 
  the 
  stomach 
  or 
  beneath 
  the 
  skin 
  of 
  

   the 
  animals 
  infested 
  by 
  them, 
  and 
  often 
  cause 
  serious 
  functional 
  disturb- 
  

   ance. 
  They 
  also 
  lessen 
  the 
  value 
  of 
  the 
  skins. 
  The 
  ordinary 
  bots 
  attack- 
  

   ing 
  horses 
  and 
  cattle 
  lay 
  their 
  eggs 
  on 
  the 
  hair 
  of 
  the 
  animals, 
  where 
  

   they 
  are 
  likely 
  to 
  be 
  licked 
  off, 
  and 
  so 
  brought 
  into 
  the 
  mucus-lined 
  

   passages; 
  hence 
  it 
  is 
  a 
  good 
  plan, 
  where 
  bots 
  are 
  numerous, 
  to 
  keep 
  

   horses 
  cleaned 
  and 
  brushed 
  and 
  to 
  prevent 
  their 
  licking 
  themselves. 
  

   Bots 
  beneath 
  the 
  skin 
  should 
  be 
  treated 
  with 
  mercurial 
  ointment, 
  and 
  

   after 
  a 
  day 
  or 
  two 
  squeezed 
  out 
  through 
  a 
  sufficient 
  incision. 
  WTiere 
  they 
  

   infest 
  the 
  stomach, 
  or 
  get 
  into 
  the 
  nasal 
  passages, 
  a 
  veterinarian 
  must 
  be 
  

   consulted. 
  

  

  GASTROPHILUS 
  Leach. 
  

  

  G. 
  equi 
  Fab. 
  The 
  horse 
  bot-fly, 
  which 
  spends 
  the 
  larval 
  stage 
  in 
  the 
  in- 
  

   testines, 
  and 
  is 
  passed 
  naturally 
  when 
  full 
  grown; 
  it 
  pupates 
  under 
  

   ground 
  and 
  the 
  eggs 
  are 
  laid 
  on 
  the 
  hair. 
  

  

  G. 
  nasalis 
  Linn. 
  Caldwell 
  (Cr). 
  

  

  HYPODERMA 
  Clark. 
  

  

  The 
  ox 
  bot, 
  Hypoderma 
  lineaia: 
  a. 
  eggs 
  attached 
  to 
  hair; 
  

   b, 
  fly; 
  c, 
  larva. 
  

   Fig. 
  320. 
  

  

  H. 
  lineata 
  Villers. 
  The 
  "Ox 
  Warble"; 
  occurs 
  rarely 
  throughout 
  the 
  State. 
  

   H. 
  bovis 
  De 
  Geer. 
  Atlantic 
  City, 
  Belvidere 
  (U 
  S 
  Ag). 
  

   These 
  species 
  live 
  under 
  the 
  skin 
  and 
  form 
  tumors 
  and 
  ulcers. 
  

  

  