﻿294 
  REPORT 
  UNITED 
  STATES 
  ENTOMOLOGICAL 
  COMMISSION. 
  

  

  costal 
  space 
  is 
  :^ide 
  and 
  well 
  marked, 
  and 
  the 
  transverse 
  veinlets 
  are 
  

   few 
  and 
  far 
  ai)art, 
  compared 
  with 
  the 
  two 
  orders 
  just 
  mentioned. 
  

  

  The 
  abdomen 
  is 
  cylindrical, 
  and 
  there 
  are 
  9-10 
  uromeres. 
  The 
  ovi- 
  

   positor 
  is 
  only 
  developed 
  in 
  Raphidia, 
  while 
  the 
  cercopoda 
  are 
  not 
  

   developed. 
  The 
  metamorphosis 
  is 
  complete, 
  as 
  in 
  the 
  Lepidoptera, 
  etc., 
  

   the 
  pupa 
  being 
  entirely 
  unlike 
  the 
  larva, 
  and 
  quiescent, 
  often 
  protected 
  

   by 
  a 
  cocoon 
  or 
  case. 
  The 
  order 
  may 
  be 
  divided 
  into 
  two 
  suborders 
  : 
  

  

  1. 
  Flanvjennia 
  (Sialid*, 
  Hemerobiidse, 
  Panorpidse). 
  

  

  2. 
  Trichoptera 
  (Phryganeidae). 
  

  

  The 
  following 
  tabular 
  view 
  and 
  diagram 
  will 
  in 
  a 
  degree 
  express 
  our 
  

   views 
  as 
  to 
  the 
  classification 
  of 
  the 
  orders 
  of 
  the 
  Hexapodons 
  or 
  winged 
  

   insects, 
  with 
  especial 
  reference 
  to 
  the 
  Pseudoneuroptera, 
  the 
  order 
  i^er- 
  

   haps 
  the 
  most 
  difficult 
  to 
  bring 
  in 
  relation 
  with 
  the 
  other 
  Phyloptera. 
  

   The 
  diagram 
  Avill 
  also 
  serve 
  to 
  express 
  our 
  conceptions 
  of 
  the 
  genealogy 
  

   <of 
  the 
  Hexapodons 
  orders. 
  

  

  View 
  of 
  the 
  grand 
  divisions 
  of 
  winged 
  insects 
  {Hexapoda). 
  

  

  Superorrters. 
  

  

  Orders. 
  

  

  Suborders. 
  

  

  Tilnfln'^sial'fl 
  I'll 
  

  

  

  ! 
  

  

  I 
  Lei)itlopt6ra 
  ..... 
  . 
  

  

  i 
  

  

  Ti'.l 
  v( 
  I'milinrn, 
  '*2 
  

  

  [ 
  Diptera 
  

  

  C 
  Diptera 
  (genuina). 
  ! 
  

  

  < 
  Apkauiptera. 
  

   (, 
  Pupipaia. 
  

  

  C 
  Coleoptera 
  (genuina). 
  i 
  

   \ 
  Strepsiptera. 
  

  

  fHomoiitera. 
  

   1 
  Heteiopteia, 
  

   j 
  Physapoda. 
  

   [ 
  Mallophaga. 
  

  

  (, 
  Trichoptera, 
  

   \ 
  Planipennia. 
  

  

  C 
  Odonata. 
  

  

  < 
  Ephemeriua. 
  

   ( 
  Platyi^tera. 
  

  

  C 
  Cinura. 
  

  

  < 
  Syjnphyla. 
  

   ( 
  CoUembola. 
  

  

  Coleoptera 
  .... 
  

  

  Eurhyncliota'-*^ 
  

  

  

  Phyloptera 
  

  

  

  •^ 
  Pseucloueuioptera 
  

  

  j 
  Orthoptera 
  

  

  Synaptera 
  ^'^ 
  

  

  

  

  

  "** 
  We 
  propose 
  the 
  name 
  Euglossata 
  for 
  tlie 
  highest 
  insects, 
  comprising 
  those 
  orders 
  -which, 
  besides 
  

   Slaving 
  the 
  mouth 
  parts 
  (either 
  the 
  tii 
  st 
  or 
  second 
  maxillai, 
  or 
  both) 
  modified 
  so 
  as 
  to 
  sip, 
  suck 
  or 
  lap 
  

   up 
  liquid 
  food, 
  also 
  have 
  the 
  body 
  cylindrical, 
  and 
  the 
  thorax 
  more 
  or 
  less 
  spherical 
  and 
  concentrated. 
  

  

  '^^This 
  term 
  is 
  proposed 
  for 
  the 
  Coleoptera, 
  which 
  are 
  nearly 
  equivalent 
  to 
  the 
  other 
  superorders, 
  

   being 
  a 
  remarkably 
  circumscribed 
  group. 
  

  

  i^Tbis 
  term 
  is 
  proposed 
  for 
  the 
  Hemiptera, 
  in 
  all 
  of 
  which, 
  except 
  the 
  Mallophaga 
  and 
  Physapoda 
  

   (Thrips), 
  the 
  mouth 
  paits 
  are 
  united 
  to 
  form 
  a 
  sucking 
  beak.^ 
  

  

  1** 
  This 
  term 
  is 
  proposed 
  for 
  the 
  Thysanuran 
  apterous 
  Hexapods 
  which 
  are 
  perhaps 
  nearly 
  the 
  mor- 
  

   phological 
  equivalents 
  of 
  either 
  of 
  the 
  four 
  other 
  superorders. 
  

  

  