﻿234 
  LE 
  CONTE 
  SYNOPSIS 
  OF 
  THE 
  

  

  1. 
  E. 
  crib 
  os 
  a, 
  brevis 
  inflata, 
  purpureo-picea, 
  thorace 
  varioloso, 
  antice 
  ad 
  medium 
  paulo 
  deplanato, 
  

   elytris 
  connatis, 
  subretieulatis, 
  longitudinalitcr 
  obsolete 
  sulcatis. 
  Long. 
  -65. 
  

   Le 
  Conte, 
  Proc. 
  Acad. 
  Nat. 
  So. 
  Philadelpbia, 
  7, 
  217. 
  

   Tostegoptera 
  <,-ibrosa 
  Lee. 
  ibid. 
  6, 
  231. 
  

  

  Texas, 
  valley 
  of 
  the 
  Rio 
  Grande 
  ; 
  collected 
  by 
  Messrs. 
  Schott 
  and 
  Clark, 
  of 
  the 
  

   U. 
  S. 
  and 
  Mexican 
  Boundary 
  Survey. 
  Body 
  convex, 
  stout, 
  ovate 
  in 
  the 
  female, 
  

   oblong 
  in 
  the 
  male, 
  purplish 
  black. 
  Head 
  scabrous, 
  flat, 
  finely 
  margined, 
  faintly 
  

   emarginate 
  in 
  front 
  ; 
  frontal 
  suture 
  not 
  visible. 
  Thorax 
  nearly 
  twice 
  as 
  wide 
  as 
  the 
  

   head, 
  sides 
  much 
  rounded, 
  serrate, 
  sparsely 
  ciliate, 
  narrowed 
  towards 
  the 
  base 
  ; 
  disc 
  

   very 
  coarsely 
  and 
  confluently 
  punctured, 
  at 
  the 
  middle 
  slightly 
  flattened, 
  with 
  some 
  

   smooth 
  polished 
  spaces 
  around 
  the 
  flattened 
  portion. 
  Scutellum 
  transverse, 
  smooth. 
  

   Elytra 
  ventricose. 
  subsulcate, 
  and 
  covered 
  with 
  shallow 
  fovea?, 
  giving 
  a 
  reticulated 
  

   appearance, 
  suture 
  not 
  more 
  elevated 
  than 
  the 
  rest. 
  Pygidium 
  sparsely 
  coarsely 
  

   punctured. 
  Body 
  beneath 
  shining 
  ; 
  sternum 
  very 
  coarsely 
  punctured, 
  with 
  very 
  short 
  

   hairs 
  proceeding 
  from 
  the 
  punctures 
  ; 
  sides 
  and 
  the 
  abdomen 
  sparsely 
  punctured 
  and 
  

   slightly 
  hairy. 
  

  

  2. 
  E. 
  ve 
  n 
  t 
  rico 
  sa, 
  atra 
  convexa, 
  tborace 
  lateribus 
  rotundatis 
  serratis, 
  medio 
  subangulatis, 
  confertim 
  

   grosse 
  punctata, 
  callo 
  dorsali 
  pone 
  medium 
  lsevi, 
  disco 
  antice 
  vix 
  obsolete 
  impresso, 
  elytris 
  connatis 
  

   subsulcatis, 
  confluenter 
  minus 
  profunde 
  punctatis, 
  interstitiis 
  sublasvibus. 
  Long. 
  -9. 
  

   Lee. 
  Proc. 
  Acad. 
  Nat. 
  Sc. 
  Phil. 
  7, 
  217. 
  

   Tostegoptera 
  ventricosa 
  Lee. 
  ibid. 
  6, 
  440. 
  

  

  Eagle 
  Pass, 
  Texas 
  ; 
  two 
  females 
  collected 
  by 
  Mr. 
  Schott. 
  Differs 
  from 
  the 
  pre- 
  , 
  

   ceding 
  by 
  the 
  head 
  being 
  more 
  rounded 
  and 
  less 
  scabrous, 
  with 
  the 
  frontal 
  suture 
  

   slightly 
  visible 
  ; 
  by 
  the 
  thorax 
  being 
  less 
  coarsely 
  but 
  more 
  densely 
  punctured, 
  and 
  

   having 
  a 
  dorsal 
  smooth 
  space 
  behind 
  the 
  middle. 
  The 
  elytra 
  are 
  more 
  distinctly 
  

   sulcate, 
  and 
  are 
  rather 
  punctured 
  than 
  reticulate. 
  The 
  body 
  beneath 
  is 
  sculptured 
  

   as 
  in 
  Eu. 
  cribrosa. 
  

  

  Endrosa 
  Lee. 
  

  

  Antennae 
  9-articulatae, 
  articulis 
  3 
  — 
  5 
  connatis, 
  longitudine 
  Eequalibus, 
  clava 
  triarticulata; 
  palpi 
  inaxillares 
  

   articulo 
  ultimo 
  elongate, 
  cylindrico, 
  labiales 
  articulo 
  ultimo 
  ovali 
  ; 
  labrum 
  bilobum, 
  ligula 
  (cum 
  mento) 
  sub- 
  

   rotundata, 
  concava, 
  antice 
  profunde 
  acute 
  emarginata. 
  Mandibulae 
  crassae 
  prominulse. 
  Tibiae 
  posteriores 
  

   coronatse 
  ; 
  tarsi 
  elongati, 
  postici 
  articulo 
  lmo 
  paulo 
  breviore, 
  unguiculi 
  dente 
  magno 
  ad 
  medium 
  armati 
  ; 
  

   calcaria 
  postica 
  sexus 
  utriusque 
  libera. 
  

  

  This 
  genus 
  is 
  represented 
  only 
  by 
  Melolontha 
  quercus 
  Knock, 
  and 
  a 
  new 
  species 
  

   having 
  the 
  appearance 
  of 
  the 
  Lachnosternse 
  of 
  group 
  V, 
  but 
  differing 
  in 
  several 
  

   respects, 
  the 
  principal 
  of 
  which 
  are 
  the 
  emarginate 
  clypeus 
  and 
  deeply 
  incised 
  ligula. 
  

   The 
  posterior 
  spurs 
  of 
  the 
  male 
  are 
  free, 
  elongated, 
  flattened 
  and 
  obtuse 
  ; 
  the 
  penul- 
  

   timate 
  segment 
  of 
  the 
  abdomen 
  is 
  protuberant 
  and 
  impressed 
  at 
  the 
  middle, 
  the 
  last 
  

   segment 
  is 
  short, 
  and 
  not 
  impressed, 
  as 
  in 
  the 
  Lachnosternre 
  of 
  division 
  C. 
  

  

  