﻿TABLE 
  OF 
  CONTENTS. 
  VII 
  

  

  Page. 
  

   The 
  systematic 
  position 
  of 
  the 
  ortboptera 
  in 
  relation 
  to 
  other 
  or- 
  

   BERS 
  OF 
  insects 
  — 
  Continued. 
  

  

  insects, 
  294 
  — 
  diagrammatic 
  view 
  of 
  the 
  genealogy 
  of 
  tlie 
  insects, 
  295 
  — 
  

   genealogy 
  of 
  the 
  Hexapoda, 
  295 
  — 
  of 
  Thysanura, 
  295 
  — 
  of 
  Dermatoptera, 
  

   295 
  — 
  of 
  Orthoptera, 
  296 
  — 
  of 
  Pseudoneuroptera, 
  296 
  — 
  of 
  Hemiptera, 
  297 
  — 
  

   of 
  Neuroptera, 
  297 
  — 
  derivation 
  of 
  eruciform 
  larvse, 
  297 
  — 
  of 
  Sialidae, 
  297 
  — 
  

   of 
  thysanuriform 
  larvsB, 
  297 
  — 
  diversity 
  of 
  Neuropterous 
  larvae, 
  297 
  — 
  larvae 
  

   of 
  Sialidae, 
  297 
  — 
  of 
  Hemerobiidae, 
  297 
  — 
  of 
  Trichoptera, 
  298 
  — 
  of 
  Panorpidae, 
  

   298 
  — 
  significance 
  of 
  the 
  abdominal 
  legs 
  of 
  Panorpid 
  larvae, 
  299 
  — 
  the 
  hyper- 
  

   metamorphosis 
  of 
  Mantispa 
  a 
  key 
  to 
  the 
  origin 
  of 
  a 
  complete 
  metamor- 
  

   phosis, 
  299 
  — 
  the 
  aspect 
  of 
  the 
  Neuroptera 
  comparatively 
  specialized 
  and 
  

   modern, 
  299 
  — 
  the 
  Neuropterous 
  labium 
  a 
  secondary 
  product, 
  299 
  — 
  origin 
  

   of 
  the 
  Coleoptera, 
  299 
  — 
  the 
  free, 
  active 
  larvae 
  of 
  the 
  carnivorous 
  groups 
  

   most 
  nearly 
  allied 
  to 
  the 
  primitive 
  form, 
  300 
  — 
  the 
  scavenger 
  and 
  phyto- 
  

   phagous 
  larvae 
  show 
  increasing 
  degradation 
  of 
  development, 
  300 
  — 
  the 
  

   relative 
  form 
  of 
  the 
  maxillae 
  a 
  good 
  index 
  of 
  the 
  general 
  development 
  of 
  

   the 
  body 
  in 
  Coleoptera, 
  300 
  — 
  structure 
  of 
  maxillae 
  in 
  the 
  several 
  families, 
  

   300 
  — 
  close 
  resemblance 
  of 
  the 
  mouth-parts 
  of 
  Elaterid 
  larvae 
  to 
  those 
  of 
  

   Carabid 
  larvae, 
  301 
  — 
  thehypermetamorphosis 
  of 
  Meloidae 
  furnishes 
  a 
  clew 
  

   to 
  the 
  probable 
  origin 
  of 
  the 
  different 
  types 
  of 
  Coleopterous 
  larvae, 
  301 
  — 
  

   brief 
  description 
  of 
  the 
  metamorphoses 
  of 
  Meloe, 
  301 
  — 
  of 
  Epicauta, 
  302 
  — 
  

   comparison 
  of 
  the 
  larval 
  stages 
  of 
  Meloidae 
  with 
  the 
  different 
  types 
  of 
  

   Coleopterous 
  larvae, 
  302 
  — 
  origin 
  of 
  the 
  Diptera, 
  Lepidoptera, 
  and 
  Hy- 
  

   menoptera, 
  303 
  — 
  presence 
  of 
  temporary 
  abdominal 
  appendages 
  on 
  each 
  

   segment 
  of 
  Lepidopterous, 
  Coleopterous, 
  and 
  Orthopterous 
  embryos, 
  

   304 
  — 
  description 
  of 
  the 
  structure 
  of 
  Dermatoptera 
  (Forficula), 
  304 
  — 
  Labia, 
  

   308— 
  larva 
  of 
  Forficula, 
  308— 
  Orthoptera, 
  309— 
  Blattariae, 
  309— 
  close 
  re- 
  

   lation 
  of 
  Blatta 
  and 
  Termes, 
  310 
  — 
  structure 
  of 
  Mantidae, 
  310 
  — 
  Blatta 
  the 
  

   stem-form 
  of 
  the 
  Orthoptera, 
  312 
  — 
  Mantis 
  connects 
  the 
  Acrydii 
  and 
  the 
  

   Blattariae, 
  312 
  — 
  structure 
  of 
  Phasmida, 
  312 
  — 
  Diapheromera, 
  312 
  — 
  Priso- 
  

   pus, 
  313 
  — 
  this 
  genus 
  connects 
  the 
  Phasmida 
  with 
  the 
  Acrydii, 
  314 
  — 
  struc- 
  

   ture 
  of 
  Acrydii, 
  314 
  — 
  Caloptenus, 
  314 
  — 
  Proscopia, 
  316— 
  Conocephalus, 
  

   318— 
  Locustariae 
  (Anabrus), 
  318— 
  Gryllidae, 
  319— 
  Gryllus, 
  319— 
  Gryllo- 
  

   talpa, 
  320 
  — 
  (Ecanthus, 
  322 
  — 
  sequence 
  of 
  families 
  of 
  Orthoptera, 
  322 
  — 
  

   structure 
  of 
  Pseudoneuroptera, 
  322 
  — 
  Corrodentia, 
  322 
  — 
  Perlidae 
  (Ptero- 
  

   narcys), 
  322— 
  Psocidae 
  (Psocus), 
  325— 
  Termitidae, 
  326— 
  Odonata, 
  329— 
  

   Ephemerina, 
  333 
  — 
  Neuroptera, 
  335 
  — 
  Planipennia, 
  335— 
  Sialidae, 
  335 
  — 
  

   Hemerobiidae, 
  338 
  — 
  Panorpidae 
  (Panorpa), 
  342 
  — 
  Trichoptera 
  (Limnephi- 
  

   lus), 
  344. 
  

  

  CHAPTER 
  XII. 
  

  

  Note 
  on 
  the 
  geographical 
  distribution 
  of 
  the 
  Eocky 
  Mountain 
  locust, 
  

   illustrated 
  with 
  a 
  colored 
  zoo-geographical 
  map 
  of 
  north 
  america- 
  346 
  

  

  APPENDICES. 
  

   APPENDIX 
  I. 
  

   Early 
  references 
  to 
  the 
  occurrence 
  of 
  the 
  Hessian 
  fly 
  in 
  North 
  

   America 
  [3} 
  

  

  Early 
  newspaper 
  references, 
  [3] 
  — 
  in 
  1784-'85, 
  at 
  Long 
  Island 
  and 
  West 
  

   Chester, 
  [3] 
  — 
  in 
  1788, 
  in 
  Long 
  Island, 
  Delaware, 
  New 
  Jersey, 
  and 
  Penn- 
  

   sylvania, 
  [3] 
  — 
  the 
  fly 
  resisted 
  by 
  certain 
  varieties 
  of 
  wheat, 
  [3-5]. 
  

  

  APPENDIX 
  II. 
  

  

  A. 
  Description 
  of 
  the 
  rye 
  gall-gnat. 
  By 
  Dr. 
  Herman 
  Loew 
  [6} 
  

  

  Views 
  as 
  to 
  the 
  original 
  country 
  of 
  the 
  Hessian 
  fly, 
  [6] 
  — 
  the 
  rye 
  gall-gnat 
  

   and 
  the 
  Hessian 
  fly 
  may 
  not 
  be 
  the 
  same 
  species, 
  [6] 
  — 
  description 
  of 
  the 
  

   rye 
  gall-gnat, 
  C. 
  secalina, 
  [7]. 
  

  

  