﻿80 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  b 
  Head 
  suboblong 
  and 
  prominent; 
  pronotum 
  nearly 
  equably 
  punctured, 
  

   not 
  more 
  strongly 
  roughened 
  in 
  front; 
  tarsi 
  with 
  the 
  4th 
  segment 
  

   much 
  smaller 
  than 
  the 
  3d, 
  which 
  is 
  usually 
  dilated 
  and 
  heartshaped 
  

   or 
  bilobed 
  [pi. 
  7, 
  fig. 
  20, 
  pi. 
  8, 
  fig. 
  21; 
  pi. 
  9, 
  fig. 
  25; 
  pi. 
  10, 
  fig. 
  26; 
  

  

  pi. 
  II, 
  fig. 
  31, 
  32, 
  36, 
  S7^ 
  Hylesininae 
  

  

  bb 
  Head 
  globose, 
  not 
  visible 
  from 
  above, 
  deeply 
  immersed 
  in 
  the 
  pro- 
  

   notum, 
  which 
  is 
  prolonged 
  and 
  usually 
  strongly 
  roughened 
  with 
  

   stout, 
  backward 
  pointing 
  spines 
  in 
  front, 
  and 
  smooth 
  or 
  punctured 
  

   behind; 
  3d 
  tarsal 
  segment 
  simple, 
  4th 
  segment 
  distinct 
  [pi. 
  4, 
  fig. 
  6, 
  

   pi. 
  5, 
  fig. 
  10^12 
  ; 
  pi. 
  7, 
  fig. 
  19] 
  Ipinae 
  (Tomicini) 
  

  

  Genera 
  of 
  the 
  Eccoptogasterinae 
  

  

  a 
  Foretibiae 
  with 
  the 
  outer 
  apical 
  angle 
  produced 
  into 
  a 
  curved 
  spine, 
  

   outer 
  border 
  unarmed 
  

   b 
  Venter 
  of 
  abdomen 
  with 
  the 
  caudal 
  portion 
  bent 
  abruptly 
  dorsad 
  

  

  [pi. 
  3, 
  fig. 
  4] 
  .. 
  .Eccoptogaster 
  Herbst. 
  (Scolytus 
  Geoff.) 
  

  

  bb 
  Venter 
  of 
  abdomen 
  regularly 
  curved, 
  nearly 
  horizontal. 
  .Loganius 
  Chap. 
  

   oa 
  Foretibiae 
  with 
  the 
  outer 
  apical 
  angle 
  produced 
  into 
  a 
  bifid 
  spine, 
  outer 
  

   border 
  near 
  the 
  base 
  of 
  the 
  spine 
  armed 
  with 
  a 
  small 
  tooth 
  

  

  b 
  " 
  Prothorax 
  with 
  a 
  defined 
  side 
  margin." 
  Bothrosternus 
  Eich. 
  

  

  lb 
  "Prothorax 
  with 
  no 
  defined 
  side 
  margin, 
  but 
  usually 
  with 
  a 
  fold 
  above 
  

   the 
  femoral 
  impression 
  

   c 
  " 
  Sutures 
  of 
  the 
  club 
  curved 
  ; 
  rostrum 
  narrower 
  than 
  the 
  front 
  ; 
  body 
  

  

  oval." 
  Pagiocerus 
  Eich. 
  

  

  cc 
  " 
  Sutures 
  of 
  the 
  club 
  straight 
  ; 
  rostrum 
  scarcely 
  narrower 
  than 
  the 
  

  

  front 
  ; 
  body 
  oblong." 
  (Blandford) 
  Cnesinus 
  Lee. 
  

  

  The 
  subfamily 
  Erineophilinae 
  contains 
  one 
  genus, 
  Erineophilus 
  Hopk. 
  

  

  Genera 
  of 
  the 
  Hylesininae 
  

  

  a 
  Antennal 
  funicle 
  with 
  less 
  than 
  4 
  segments 
  

  

  b 
  Antennal 
  funicle 
  with 
  2 
  segments 
  ; 
  club 
  not 
  distinctly 
  annulated 
  

  

  Crypturgus 
  Erich. 
  

  

  bb 
  Antennal 
  funicle 
  with 
  3 
  segments; 
  club 
  annulated 
  Dolurgus 
  Eich. 
  

  

  aa 
  Antennal 
  funicle 
  with 
  more 
  than 
  4 
  segments 
  

  

  b 
  Antennal 
  club 
  not 
  annulated, 
  pubescent 
  on 
  both 
  sides 
  [pi. 
  9, 
  fig. 
  24] 
  

  

  c 
  Eyes 
  completely 
  divided 
  Polygraphus 
  Erich. 
  

  

  cc 
  Eyes 
  not 
  divided 
  [pi. 
  10, 
  fig. 
  26] 
  Chramesus 
  Lee. 
  

  

  bb 
  Antennal 
  club 
  annulated 
  [pi. 
  9, 
  fig. 
  27; 
  pi. 
  10, 
  fig. 
  28-30] 
  

  

  c 
  Antennal 
  club 
  lamellate, 
  of 
  3 
  loosely 
  adjoined 
  segments 
  [pi. 
  10, 
  fig. 
  

  

  30] 
  Phloeotribus 
  Latr. 
  

  

  cc 
  Antennal 
  club 
  not 
  lamellate, 
  segments 
  closely 
  connate 
  [pi. 
  9, 
  fig. 
  27] 
  

   pi. 
  10, 
  fig. 
  28, 
  29] 
  

   d 
  Antennal 
  club 
  strongly 
  compressed 
  

  

  e 
  Antennal 
  funicle 
  with 
  7 
  segments 
  Hylesinus 
  Fabr. 
  

  

  ee 
  Antennal 
  funicle 
  with 
  5 
  segments 
  

   / 
  Front 
  coxae 
  not 
  contiguous 
  

  

  g 
  Antennal 
  funicle 
  with 
  outer 
  segments 
  distinctly 
  broader; 
  

  

  coxae 
  moderately 
  distant 
  [pi. 
  9, 
  fig. 
  2^^ 
  

  

  Phloeosinus 
  Chap. 
  

  

  