﻿2G2 
  LE 
  CONTE.— 
  SYNOPSIS 
  OF 
  THE 
  

  

  Unknown 
  or 
  unrecognized 
  species. 
  

  

  Ancylonycha 
  profunda 
  Blauch. 
  Cat. 
  Col. 
  Mus. 
  Paris, 
  132. 
  Texas 
  

   Ancylonycha 
  crassissima 
  Blanch, 
  ibid. 
  138. 
  Texas. 
  

   Ancylonycha 
  longicornis 
  Blanch, 
  ibid. 
  134. 
  

   Ancylonycha 
  dif 
  finis 
  Blanch, 
  ibid. 
  13S. 
  Texas. 
  

   Ancylonycha 
  i 
  1 
  i 
  c 
  i 
  sj 
  Burui. 
  Lamell. 
  2, 
  2nd, 
  326. 
  

   Ancylonycha 
  gib 
  bos 
  a 
  Burm. 
  Lamell. 
  2, 
  2nd, 
  324. 
  

   Ancylonycha 
  Forsteri 
  Burin, 
  ibid. 
  325. 
  

   Trichcstes 
  c 
  o 
  m 
  a 
  n 
  s 
  Burm. 
  ibid. 
  35$. 
  

   Trichestes 
  prununculina 
  Burm. 
  ibid. 
  300. 
  

   Trichestes 
  gracilis 
  Burm. 
  ibid. 
  361. 
  

  

  GYNNIS 
  Lee. 
  

  

  In 
  this 
  genus 
  I 
  have 
  placed 
  a 
  single 
  small 
  elongate 
  species, 
  differing 
  from 
  species 
  

   of 
  Group 
  IV 
  of 
  Lachnosterna 
  by 
  the 
  obliquity 
  of 
  the 
  inner 
  posterior 
  spur 
  of 
  the 
  male 
  

   and 
  by 
  the 
  impression 
  of 
  the 
  last 
  joint 
  of 
  the 
  maxillary 
  palpi. 
  The 
  head 
  is 
  moder- 
  

   ate 
  in 
  size, 
  with 
  strong 
  frontal 
  suture, 
  the 
  clypeus 
  is 
  deep, 
  rounded 
  and 
  strongly 
  mar- 
  

   gined 
  : 
  the 
  antennae 
  are 
  9-jointed, 
  with 
  the 
  third 
  and 
  fourth 
  joints 
  longer 
  than 
  the 
  

   following 
  : 
  the 
  last 
  joint 
  of 
  the 
  maxillary 
  palpi 
  is 
  oval 
  and 
  has 
  a 
  slight 
  lateral 
  im- 
  

   pression 
  externally 
  : 
  the 
  mandibles 
  are 
  moderately 
  prominent, 
  the 
  labrum 
  is 
  very 
  

   short 
  and 
  broad, 
  directed 
  backwards 
  and 
  very 
  slightly 
  concave, 
  not 
  by 
  any 
  means 
  

   bilobed 
  as 
  in 
  the 
  other 
  genera 
  of 
  Rhizotrogi 
  known 
  to 
  me. 
  The 
  ligula 
  is 
  almost 
  

   truncate 
  in 
  front, 
  and 
  the 
  mentum 
  is 
  broadly 
  concave 
  ; 
  the 
  last 
  joint 
  of 
  the 
  labial 
  

   palpi 
  is 
  oval. 
  The 
  legs 
  are 
  slender, 
  the 
  middle 
  tibia? 
  with 
  two, 
  the 
  posterior 
  tibia? 
  

   with 
  one 
  transverse 
  crest 
  of 
  spines 
  : 
  the 
  tarsi 
  are 
  elongate, 
  and 
  the 
  claws 
  are 
  hardly 
  

   perceptibly 
  toothed 
  near 
  the 
  middle. 
  The 
  inner 
  spur 
  of 
  the 
  posterior 
  tibifie 
  of 
  the 
  

   male 
  is 
  fixed, 
  and 
  slightly 
  oblique, 
  so 
  as 
  to 
  form 
  an 
  inferior 
  emargination, 
  the 
  outer 
  

   one 
  is 
  free, 
  slender 
  and 
  acute. 
  The 
  last 
  ventral 
  segment 
  of 
  the 
  abdomen 
  is 
  moderately 
  

   large, 
  slightly 
  impressed. 
  

  

  1 
  . 
  < 
  I 
  . 
  d 
  e 
  b 
  i 
  1 
  i 
  s 
  , 
  testacea, 
  elongata, 
  nitida, 
  capite 
  fusco 
  sat 
  punctato, 
  clypeo 
  rotundato, 
  concavo 
  testaceo 
  

   thorace 
  lateribus 
  rotundatis 
  postice 
  subangustato, 
  sat 
  fortiter 
  punctato, 
  elytris 
  fortius 
  punctatis 
  baud 
  

   costatis, 
  costa 
  suturali 
  elevata 
  subrugosa, 
  pectore 
  fortiter 
  punctato, 
  parum 
  pubescente. 
  Long. 
  -43. 
  

   One 
  specimen 
  found 
  at 
  Philadelphia 
  was 
  given 
  me 
  by 
  Mr. 
  Schafhirt. 
  

   The 
  club 
  of 
  the 
  antennae 
  of 
  the 
  male 
  is 
  longer 
  than 
  the 
  stem; 
  the 
  abdomen 
  is 
  

   longitudinally 
  slightly 
  impressed, 
  and 
  the 
  last 
  joint 
  is 
  faintly 
  but 
  broadly 
  foveate, 
  and 
  

   the 
  fovea 
  does 
  not 
  attain 
  the 
  anterior 
  margin; 
  the 
  tibue 
  are 
  described 
  above. 
  

  

  LiSTROCHELtrs 
  Blanehard. 
  

  

  Corpus 
  oblongum, 
  subcylindricum 
  alatum, 
  supra 
  subglabrum, 
  elytris 
  glauco-pruinosis. 
  Clypeus 
  rotun- 
  

   datus 
  marginatus 
  ; 
  labrum 
  profunde 
  emarginatum 
  ; 
  mandibular 
  parum 
  prominulae. 
  Mentum 
  paulo 
  concavum, 
  

  

  