﻿EXPLANATIONS 
  OF 
  PLATES 
  IX-XV. 
  

  

  Plate 
  ix 
  was 
  drawn 
  by 
  Mr. 
  E. 
  Burgess 
  from 
  his 
  own 
  dissections 
  of 
  

   Caloptcmis 
  femur-riibrum, 
  a 
  species 
  so 
  closely 
  allied 
  to 
  the 
  Rocky 
  Mount- 
  

   ain 
  locust 
  that 
  the 
  same 
  drawings 
  will 
  answer 
  for 
  both 
  species. 
  Plates 
  

   x-xv 
  were 
  drawn 
  by 
  A. 
  S. 
  Packard, 
  jr., 
  with 
  the 
  camera 
  lucida, 
  nearly 
  

   all 
  the 
  details 
  as 
  well 
  as 
  the 
  outlines 
  being 
  drawn 
  with 
  the 
  aid 
  of 
  the 
  

   camera. 
  

  

  LETTERING 
  OF 
  THE 
  FIGUKES 
  ON 
  PLATES 
  IX-XV. 
  

  

  centr. 
  I)., 
  central 
  body. 
  

   \tral)., 
  trabecule. 
  

   can., 
  cauliculus. 
  

   peel., 
  peduncle. 
  

  

  0. 
  cal., 
  outer 
  calyx. 
  

   i. 
  cal., 
  inner 
  calyx. 
  

   op. 
  I., 
  optic 
  lobe. 
  

   op. 
  n., 
  optic 
  nerve. 
  

   ant. 
  I., 
  autennal 
  lobe. 
  

   ant. 
  n., 
  autennal 
  nerve. 
  

  

  ce. 
  com. 
  L, 
  oesophageal 
  commissural 
  lobe. 
  

  

  ce. 
  com. 
  n., 
  oesophageal 
  commissural 
  nerve. 
  

   \l. 
  g. 
  c, 
  large 
  ganglion 
  cells. 
  

  

  s. 
  g. 
  c, 
  small 
  ganglion 
  cells. 
  

  

  opt. 
  gang., 
  optic 
  ganglion. 
  

   ' 
  t. 
  w. 
  transverse 
  nerve. 
  

  

  u. 
  t. 
  r. 
  n., 
  upper 
  intratrabecular 
  nerve. 
  

  

  1. 
  intr. 
  11., 
  lower 
  intratrabecular 
  nerve. 
  

  

  lat. 
  n., 
  lateral 
  nerve. 
  

  

  centr. 
  »., 
  central 
  nerve. 
  

  

  obi. 
  tr. 
  to., 
  oblique 
  trabecular 
  nerve. 
  

  

  a. 
  t. 
  n., 
  ascending 
  trabecular 
  nerve. 
  

  

  m. 
  to., 
  two 
  median 
  commissural 
  nerves. 
  

  

  sup. 
  to., 
  superior 
  commissural 
  nerve. 
  

  

  inf. 
  n., 
  inferior 
  commissural 
  nerve. 
  

  

  tr., 
  trachea. 
  

  

  up. 
  I., 
  upper 
  cerebral 
  lobe 
  of 
  embryo. 
  

  

  low. 
  I., 
  lower 
  cerebral 
  lobe 
  of 
  embryo. 
  

  

  gang, 
  c, 
  ganglion 
  cells. 
  

  

  gran., 
  grannies 
  of 
  the 
  central 
  nervous 
  

  

  matter. 
  

   oss., 
  oesophagus. 
  

   in*., 
  integument. 
  

   o. 
  n., 
  ocellar 
  nerve. 
  • 
  

   n. 
  c, 
  ventral 
  nervous 
  cord. 
  

   n. 
  c. 
  I., 
  nucleolus. 
  

  

  