﻿the 
  Family 
  Pyrocliroida?. 
  313 
  

  

  12. 
  (13) 
  Head 
  in 
  J 
  excavate 
  behind 
  eyes 
  .... 
  Hemidendroides, 
  Fiscli. 
  

   18. 
  (12) 
  Head 
  in 
  J 
  ^lot 
  excavate 
  behind 
  eyes. 
  14. 
  

  

  14. 
  (15) 
  Geuje 
  conical, 
  sides 
  of 
  thorax 
  angulate 
  

  

  before 
  base 
  Eupyrochron, 
  g. 
  n. 
  

  

  15. 
  (14) 
  GenjeroundedjSides 
  of 
  thorax 
  rounded. 
  Py/-oc/»-w«, 
  Gtjoff. 
  

   10, 
  (11) 
  Head 
  not 
  triangular 
  in 
  outline, 
  geute 
  

  

  not 
  prominent 
  17. 
  

  

  17. 
  (18) 
  Head 
  in 
  S 
  excavate 
  behind 
  eyes 
  .... 
  S'c/u'zotiis, 
  Newm. 
  

   lb. 
  (17) 
  Head 
  in 
  cJ 
  not 
  excavate 
  behind 
  eyes. 
  Pseudojji/rvchroa, 
  Pic. 
  

  

  POGONOCERUS, 
  Fiscll. 
  

  

  Although 
  this 
  genus 
  was 
  placed 
  as 
  a 
  synonym 
  of 
  Den- 
  

   droides 
  by 
  Lacordaire 
  and 
  also 
  in 
  Gemmmger 
  & 
  Harold^'s 
  

   * 
  Catalogue,' 
  Heiehe 
  has 
  demonstrated 
  (Bull. 
  Soc. 
  Ent. 
  

   France, 
  1878, 
  p. 
  Ixxiii) 
  that 
  it 
  is 
  abundantly 
  distinct. 
  It 
  

   diiiers 
  from 
  every 
  other 
  genus 
  in 
  the 
  family 
  in 
  having 
  the 
  

   third 
  joint 
  of 
  the 
  antenuse 
  small, 
  even 
  smaller 
  than 
  the 
  

   second. 
  

  

  The 
  only 
  species 
  is 
  P. 
  thoracicus, 
  Fisch. 
  

  

  Dknduoides, 
  Latr. 
  

  

  Considerable 
  misconception 
  seems 
  to 
  have 
  existed 
  in 
  the 
  

   minds 
  of 
  European 
  coleopterists 
  as 
  to 
  the 
  scope 
  of 
  this 
  

   genus, 
  and 
  the 
  numerous 
  Oid-World 
  species 
  assigned 
  to 
  it 
  by 
  

   various 
  authors 
  [e. 
  g., 
  Lewis, 
  Pic, 
  and 
  myself) 
  are 
  really 
  

   quite 
  apart 
  from 
  it. 
  

  

  The 
  type 
  of 
  the 
  genus 
  is 
  D. 
  bicolor, 
  Newm. 
  ( 
  = 
  canadensis, 
  

   Lee). 
  

  

  The 
  species 
  may 
  be 
  distinguished 
  as 
  follows 
  : 
  — 
  

  

  1. 
  (4) 
  Head 
  and 
  elytra 
  blackish, 
  thorax 
  red 
  . 
  . 
  2. 
  

  

  2. 
  (3) 
  Legs 
  reddish 
  testaceous, 
  (PI. 
  Xll, 
  

  

  tigs. 
  1, 
  1 
  a.) 
  bicolor, 
  Newm. 
  

  

  3. 
  (2) 
  Legs 
  black, 
  ■5\ith 
  base 
  of 
  femora 
  and 
  

  

  coxEC 
  ferruginous 
  *picipes, 
  Hern. 
  

  

  4. 
  (1) 
  Species 
  uuicolorous, 
  reddish 
  testaceous 
  

  

  or 
  piceous 
  5. 
  

  

  5. 
  (10) 
  Species 
  reddish 
  testaceous. 
  (North 
  

  

  American.) 
  6. 
  

  

  6. 
  (7) 
  Antennte 
  of 
  5 
  with 
  joints 
  3-6 
  trian- 
  

  

  gular, 
  the 
  following 
  gradually 
  more 
  

  

  and 
  more 
  produced 
  at 
  the 
  extremity 
  . 
  Hestuceus, 
  Ltc. 
  

  

  7. 
  (6) 
  Antennae 
  of 
  5 
  with 
  branch 
  of 
  sixth 
  

  

  joint 
  nearly 
  as 
  long 
  as 
  that 
  of 
  seventh, 
  8. 
  

  

  8. 
  (9) 
  Thorax 
  as 
  loug 
  as 
  broad 
  ; 
  eyes 
  in 
  J 
  al- 
  

  

  most 
  contiguous 
  for 
  some 
  distance 
  

  

  along 
  middle 
  line 
  : 
  species 
  shorter 
  . 
  . 
  eoticolor, 
  Newm. 
  

  

  * 
  Species 
  marked 
  with 
  an 
  asterisk 
  1 
  know 
  only 
  from 
  description. 
  

  

  