﻿256 
  REPORT 
  UNITED 
  STATES 
  ENTOMOLOGICAL 
  COMMISSION. 
  

   Family 
  Oerambycid^. 
  

  

  LONaiCORN 
  LARVA 
  UNDER 
  BARK 
  OF 
  THE 
  HEMLOCK. 
  

  

  Plate 
  XII, 
  Fig. 
  5, 
  represents 
  the 
  Longicorn 
  larva 
  mentioned 
  on 
  p 
  

   241 
  of 
  Bulletin 
  7 
  (Ko. 
  2), 
  as 
  found 
  in 
  abundance 
  under 
  the 
  bark 
  of 
  

   the 
  hemlock 
  at 
  the 
  Glen, 
  K 
  H., 
  July 
  22. 
  

  

  It 
  is 
  19°^°^ 
  in 
  length; 
  width 
  of 
  the 
  pro 
  thoracic 
  segment, 
  4.5°^*". 
  

  

  LONaiCORN 
  LARVA 
  UNDER 
  BARK 
  OF 
  HEMLOCK. 
  

  

  Plate 
  XII, 
  Fig. 
  6, 
  represents 
  a 
  Longicorn 
  larva 
  found 
  under 
  the 
  bark 
  

   of 
  the 
  hemlock, 
  and 
  mentioned 
  on 
  p. 
  241, 
  Bulletin 
  7 
  (No. 
  3), 
  as 
  having 
  

   occurred 
  at 
  Bath, 
  Me., 
  July 
  30. 
  

  

  The 
  body 
  is 
  remarkably 
  short 
  and 
  thick; 
  as 
  wide 
  near 
  the 
  end 
  as 
  

   across 
  the 
  prothoracic 
  segment. 
  It 
  is 
  20"^°^ 
  in 
  length. 
  Mandibles 
  

   rounded; 
  antennae 
  long 
  and 
  slender, 
  4-jointed; 
  maxillae 
  with 
  the 
  lobe 
  

   long, 
  extendiug 
  as 
  far 
  as 
  the 
  end 
  of 
  the 
  4-jointed 
  palpi. 
  Labium 
  narrow, 
  

   palpi, 
  large, 
  3-jointed. 
  La 
  brum 
  small 
  and 
  narrow. 
  

  

  Saperda 
  on 
  the 
  Willow. 
  

  

  Plate 
  XI, 
  Fig. 
  4; 
  XII, 
  fig. 
  4, 
  represents 
  a 
  larva 
  found 
  by 
  Dr. 
  Watson, 
  

   in 
  the 
  willow. 
  

  

  It 
  is 
  16™"^ 
  in 
  length 
  ; 
  prothoracic 
  segment 
  3"^°^ 
  wide. 
  A 
  pair 
  of 
  protho- 
  

   racic 
  spiracles, 
  and 
  the 
  usual 
  eight 
  pairs 
  of 
  abdominal 
  ones. 
  Anten- 
  

   nae 
  4-joiDted; 
  labrum 
  as 
  long 
  as 
  broad; 
  maxillae 
  with 
  the 
  lobe 
  very 
  

   large, 
  extending 
  far 
  beyond 
  the 
  palpi, 
  which 
  are 
  small 
  and 
  3-jointed. 
  

   Labium 
  broad 
  and 
  short; 
  palpi 
  short, 
  3-jointed. 
  Mandibles 
  rounded 
  at 
  

   tip. 
  

  

  THE 
  LESSER 
  PINE 
  BORER. 
  

  

  Asemum 
  moestum 
  Haldeman. 
  PI. 
  IX, 
  Fig. 
  1. 
  

  

  Prothorax 
  inclined 
  downwards 
  towards 
  the 
  head 
  ; 
  quite 
  long 
  and 
  not 
  

   very 
  wide, 
  being 
  no 
  wider 
  than 
  the 
  meso 
  thoracic 
  and 
  metathoracic 
  seg- 
  

   ments, 
  the 
  squarish 
  area 
  being 
  very 
  long, 
  naked 
  on 
  the 
  basal 
  third, 
  the 
  

   front 
  margin 
  pale 
  brown, 
  chitinous. 
  Mesothoracic 
  and 
  metathoracic 
  seg- 
  

   ments 
  as 
  wide 
  as 
  the 
  prothoracic; 
  the 
  metathoracic 
  slightly 
  longer 
  and 
  

   fully 
  as 
  broad 
  as 
  the 
  mesothoracic 
  segment. 
  Abdominal 
  segments 
  rather 
  

   broad, 
  the 
  2d 
  the 
  shortest, 
  and 
  the 
  7th 
  the 
  longest; 
  the 
  8th 
  two-thirds 
  

   as 
  long 
  as 
  the 
  7th 
  and 
  considerably 
  narrower; 
  the 
  9th 
  one-quarter 
  as 
  

   long 
  as 
  the 
  8th 
  and 
  three- 
  fourths 
  as 
  wide; 
  the 
  10th 
  only 
  seen 
  from 
  be- 
  

   neath, 
  and 
  about 
  two-thirds 
  as 
  wide 
  as 
  the 
  9th, 
  and 
  bilobed 
  at 
  the 
  end. 
  

   On 
  the 
  two 
  hinder 
  thoracic 
  and 
  the 
  1st 
  abdominal 
  segment 
  are 
  trans- 
  

   verse 
  regular 
  oblong 
  areas 
  bounded 
  by 
  impressed 
  lines; 
  on 
  segments 
  

   2-4 
  the 
  callosities 
  are 
  narrower, 
  and 
  the 
  anterior 
  side 
  is 
  pointed; 
  on 
  the 
  

   6th 
  and 
  7th 
  they 
  are 
  a 
  little 
  longer 
  than 
  broad 
  and 
  contracted 
  posteri- 
  

   orly. 
  Beneath 
  are 
  similar 
  callosities, 
  but 
  the 
  anterior 
  edge 
  is 
  feebly 
  in- 
  

  

  