﻿CHAPTER 
  IX. 
  

  

  DESOEIPTIOKS 
  OF 
  THE 
  LARV^ 
  OF 
  INJUEIOUS 
  FOEEST 
  

  

  IISrSECTS. 
  

  

  (Plates 
  YI-XY.) 
  

  

  The 
  following 
  descriptions 
  were 
  drawn 
  up 
  after 
  the 
  publication 
  of 
  

   our 
  Bulletin 
  No. 
  7, 
  on 
  Forest 
  Insects 
  j 
  and 
  it 
  is 
  believed 
  that 
  these 
  

   notes, 
  and 
  especially 
  the 
  accompanying 
  illustrations, 
  will 
  have 
  considera- 
  

   ble 
  practical 
  interest. 
  The 
  drawings 
  have 
  all 
  been 
  made 
  by 
  Dr. 
  0. 
  F. 
  

   Gissler, 
  under 
  the 
  author's 
  direction, 
  and 
  acknowledgment 
  should 
  be 
  

   made 
  of 
  the 
  care 
  and 
  pains 
  taken 
  by 
  Dr. 
  Gissler 
  in 
  representing 
  these 
  

   difficult 
  subjects 
  for 
  illustration. 
  Full 
  references 
  to 
  the 
  figures 
  are 
  

   given 
  in 
  the 
  explanations 
  of 
  the 
  plates. 
  

  

  Family 
  Buprestidjs. 
  

  

  THE 
  FLAT-HEADED 
  APPLE 
  BORER. 
  

  

  Chrysobothris 
  femorata 
  (Fabricius). 
  

  

  The 
  following 
  description 
  has 
  been 
  drawn 
  up 
  from 
  fresh 
  alcoholic 
  spec- 
  

   imens, 
  from 
  the 
  localities 
  mentioned 
  in 
  Bulletin 
  7, 
  p. 
  16. 
  

  

  Prothorax 
  very 
  broad, 
  being 
  broader 
  and 
  flatter 
  and 
  the 
  abdominal 
  

   segments 
  smaller 
  in 
  i)roportion 
  than 
  any 
  other 
  borer 
  of 
  this 
  family 
  known 
  

   tons. 
  Head 
  retracted 
  within 
  the 
  prothorax. 
  The 
  disk 
  finely 
  shagreened 
  

   with 
  raised 
  dots. 
  A 
  narrow 
  inverted 
  V-shaped 
  smooth 
  impressed 
  line 
  

   in 
  the 
  middle 
  of 
  the 
  disk, 
  the 
  apex 
  becoming 
  prolonged 
  towards 
  but 
  

   finally 
  becoming 
  obsolete 
  at 
  the 
  front 
  edge 
  of 
  the 
  disk 
  j 
  the 
  arms 
  of 
  the 
  

   V 
  behind 
  not 
  reaching 
  very 
  near 
  the 
  posterior 
  edge 
  of 
  the 
  disk. 
  Beneath, 
  

   is 
  a 
  similar 
  roughened 
  disk, 
  but 
  more 
  regularly 
  rounded-oval 
  than 
  above, 
  

   and 
  with 
  a 
  single 
  straight 
  median 
  swollen 
  impressed 
  line, 
  which 
  is 
  a 
  

   little 
  over 
  one-half 
  as 
  long 
  as 
  the 
  disk, 
  bnt 
  which 
  reaches 
  a 
  little 
  nearer 
  

   the 
  front 
  than 
  the 
  hind 
  edge. 
  

  

  2d 
  thoracic 
  (mesothoracic) 
  segment 
  very 
  short, 
  considerably 
  shorter 
  

   and 
  wider 
  than 
  the 
  3d, 
  with 
  an 
  oval 
  slightly 
  rough 
  area 
  on 
  each 
  side 
  of 
  

   the 
  median 
  line, 
  the 
  similar 
  area 
  on 
  the 
  3d 
  thoracic 
  segment 
  being 
  

   larger 
  and 
  united 
  over 
  the 
  median 
  line. 
  

  

  The 
  ten 
  abdominal 
  segments 
  of 
  uniform 
  width, 
  being 
  a 
  little 
  shorter 
  

   than 
  broad, 
  except 
  the 
  small 
  10th 
  segment, 
  which 
  is 
  about 
  two-thirds 
  

  

  251 
  

  

  