﻿486 
  On 
  a 
  new 
  Genus 
  and 
  Species 
  of 
  Cicindelidaj. 
  

  

  LVIII. 
  — 
  Characters 
  of 
  a 
  new 
  Genus 
  and 
  Species 
  of 
  

   Cicindelidse. 
  By 
  Charles 
  O. 
  Wateehouse. 
  

  

  Among 
  some 
  insects 
  from 
  South 
  Brazil 
  which 
  recently 
  came 
  

   under 
  my 
  notice 
  were 
  two 
  male 
  examples 
  of 
  a 
  Cicindelid 
  

   allied 
  to 
  Oxycheila 
  and 
  Raminagrobis, 
  but 
  which 
  differ 
  from 
  

   both 
  those 
  genera 
  in 
  the 
  form 
  of 
  the 
  labrum 
  and 
  mandibles 
  ; 
  

   these 
  latter 
  are 
  quite 
  unlike 
  those 
  of 
  any 
  Cicindelid 
  with 
  

   which 
  I 
  am 
  acquainted 
  and 
  remind 
  one 
  of 
  some 
  species 
  of 
  

   Lucanidae. 
  

  

  COPHOGNATHUS. 
  

  

  General 
  characters 
  of 
  Oxycheila. 
  Central 
  tooth 
  of 
  the 
  

   mentum 
  equilaterally 
  triangular, 
  very 
  acute 
  at 
  its 
  apex. 
  

   Labial 
  palpi 
  very 
  slender, 
  the 
  basal 
  joint 
  extending 
  a 
  little 
  

   beyond 
  the 
  central 
  tooth, 
  the 
  second 
  joint 
  only 
  a 
  little 
  shorter 
  

   than 
  the 
  first, 
  the 
  fourth 
  joint 
  a 
  little 
  widened 
  at 
  its 
  apex, 
  

   rather 
  shorter 
  than 
  the 
  third. 
  Labium 
  scarcely 
  longer 
  than 
  

   bread, 
  triangular, 
  denticulate 
  near 
  the 
  apex. 
  Maxillary 
  

   palpi 
  with 
  the 
  fourth 
  joint 
  a 
  little 
  shorter 
  than 
  the 
  third. 
  

   Mandibles 
  strong 
  and 
  tiiick, 
  flattened, 
  curved, 
  with 
  two 
  obtuse 
  

   approximate 
  teeth 
  near 
  the 
  apex. 
  Thorax, 
  as 
  compared 
  with 
  

   that 
  of 
  Oxycheila 
  tristis, 
  broad, 
  constricted 
  at 
  its 
  base. 
  The 
  

   anterior 
  tarsi 
  in 
  the 
  male 
  with 
  the 
  three 
  basal 
  joints 
  dilated. 
  

   Wings 
  present. 
  

  

  Cophognath 
  us 
  opacipen 
  n 
  is. 
  

  

  Niger; 
  capite 
  thoraceque 
  nitidis: 
  antennis 
  articulis 
  5°-ll 
  m 
  testa- 
  

  

  ceis 
  ; 
  elytris 
  opacis, 
  basi 
  punctatis, 
  ad 
  apicem 
  eruargiuatis. 
  

   Long. 
  12 
  lin. 
  

  

  Hab. 
  Sao 
  Paulo, 
  South 
  Brazil. 
  

  

  This 
  interesting 
  species 
  has 
  somewhat 
  the 
  appearance 
  of 
  

   Oxycheila 
  tristis, 
  but 
  the 
  small 
  labrum 
  and 
  blunt 
  mandibles 
  

   are 
  quite 
  different. 
  The 
  eyes 
  are 
  relatively 
  smaller. 
  The 
  

   thorax 
  is 
  shorter 
  and 
  broader, 
  shining, 
  strongly 
  constricted 
  at 
  

   the 
  base, 
  with 
  a 
  deep 
  lunate 
  impression 
  on 
  the 
  disk 
  a 
  little 
  in 
  

   front 
  of 
  the 
  middle, 
  and 
  with 
  the 
  basal 
  transverse 
  impression 
  

   strongly 
  marked. 
  The 
  elytra 
  are 
  a 
  little 
  shorter, 
  dull, 
  with 
  

   some 
  not 
  very 
  strong 
  punctures 
  at 
  the 
  base, 
  a 
  few 
  of 
  which 
  

   are 
  asperate 
  ; 
  the 
  apex 
  narrowly 
  truncate 
  (or 
  slightly 
  eraar- 
  

   ginate), 
  the 
  outer 
  angle 
  of 
  the 
  truncature 
  slightly 
  dentiform. 
  

   Labrum, 
  mandibles, 
  and 
  tarsi 
  obscurely 
  pitchy. 
  

  

  