﻿MELOLONTHlD^l 
  OF 
  THE 
  UNITED 
  STATES. 
  239 
  

  

  Male 
  with 
  the 
  club 
  of 
  the 
  antennae 
  as 
  long 
  as 
  the 
  stern, 
  the 
  abdomen 
  with 
  a 
  broad 
  

   longitudinal 
  impression 
  not 
  extending 
  upon 
  the 
  laskscgment, 
  posterior 
  tibia? 
  with 
  the 
  

   spurs 
  free, 
  very 
  broad, 
  flat 
  and 
  obtuse 
  : 
  tarsi 
  longer 
  than 
  the 
  tibia?. 
  

  

  Female 
  with 
  the 
  abdomen 
  not 
  impressed 
  ; 
  the 
  posterior 
  spurs 
  as 
  in 
  the 
  male, 
  and 
  

   the 
  tarsi 
  hardly 
  longer 
  than 
  the 
  tibiae. 
  

  

  Groi 
  p 
  III. 
  

   This 
  group 
  is 
  established 
  upon 
  a 
  single 
  species, 
  having 
  tnosl 
  of 
  the 
  characters 
  of 
  

   the 
  preceding, 
  but 
  the 
  form 
  is 
  oblong 
  and 
  the 
  spurs 
  of 
  the 
  posterior 
  tibiae 
  are 
  con- 
  

   torted 
  (at 
  least 
  in 
  the 
  male) 
  and 
  not 
  ilattened. 
  The 
  antennrc 
  are 
  10-jointed, 
  the 
  

   mandibles 
  and 
  palpi 
  as 
  in 
  the 
  preceding, 
  the 
  clypeus 
  is 
  strongly 
  margined, 
  hardly 
  

   emarginate. 
  The 
  thorax 
  is 
  rounded 
  on 
  the 
  sides 
  and 
  serrate, 
  but 
  only 
  very 
  slightly 
  

   narrowed 
  at 
  the 
  base. 
  The 
  breast 
  is 
  moderately 
  hairy, 
  and 
  the 
  claws 
  are 
  toothed 
  

   near 
  the 
  base: 
  the 
  spurs 
  of 
  the 
  posterior 
  tibia? 
  of 
  the 
  male 
  are 
  free, 
  the 
  inner 
  (lower) 
  

   one 
  is 
  curved, 
  almost 
  in 
  a 
  semi-circle, 
  and 
  inserted 
  on 
  the 
  edge 
  of 
  the 
  tibia, 
  the 
  upper 
  

   one 
  is 
  straight 
  and 
  prisma'tic, 
  inserted 
  upon 
  the 
  end. 
  

  

  1. 
  L. 
  torta, 
  oblonga 
  convexa, 
  castanea 
  nitida, 
  capite 
  dense 
  punctato, 
  clypeo 
  fortius 
  marginato 
  vis 
  

   euiarginato, 
  thorace 
  lateribus 
  serratis 
  postiee 
  paulo 
  angustato, 
  confertim 
  fortius 
  punctato, 
  clytris 
  con- 
  

   fertim 
  punctatis, 
  subrugosis, 
  costis 
  paruin 
  distiuctis, 
  pectore 
  dense 
  brevius 
  fiavo-villoso. 
  Long. 
  -83. 
  

  

  Two 
  males 
  collected 
  in 
  Texas 
  by 
  Messrs. 
  H. 
  Haldeman, 
  and 
  Lindheimer. 
  The 
  

   propygidium 
  is 
  opake, 
  sparsely 
  punctured, 
  the 
  pygidium 
  is 
  shining, 
  more 
  strongly 
  

   punctured 
  and 
  subtruncate 
  at 
  tip 
  : 
  the 
  abdomen 
  is 
  tolerably 
  strongly 
  punctured. 
  

  

  The 
  club 
  of 
  the 
  antenna? 
  of 
  the 
  male 
  is 
  hardly 
  as 
  long 
  as 
  the 
  stem; 
  the 
  abdomen 
  

   is 
  longitudinally 
  flattened, 
  and 
  the 
  penultimate 
  segment 
  is 
  roughened 
  and 
  slightly 
  

   elevated 
  transversely 
  at 
  the 
  middle 
  near 
  the 
  posterior 
  margin 
  ; 
  the 
  inner 
  spur 
  of 
  the 
  

   posterior 
  tibia? 
  is 
  laterally 
  inserted 
  and 
  curved 
  in 
  a 
  semicircle, 
  the 
  outer 
  one 
  is 
  shorter, 
  

   pointed, 
  thick 
  and 
  three 
  sided 
  : 
  the 
  tarsi 
  are 
  longer 
  than 
  the 
  tibiae. 
  

  

  < 
  ', 
  i:oup 
  IV. 
  

   This 
  group 
  consists 
  of 
  small 
  cylindrical 
  species, 
  glabrous 
  above. 
  The 
  head 
  is 
  large, 
  

   the 
  clypeus 
  is 
  entire 
  in 
  one 
  species, 
  and 
  deeply 
  emarginate 
  in 
  the 
  others 
  : 
  the 
  mandi- 
  

   bles 
  project 
  beyond 
  the 
  labrum 
  : 
  the 
  last 
  joint 
  of 
  the 
  maxillary 
  palpi 
  is 
  oval, 
  nearly 
  

   pointed, 
  not 
  impressed 
  externally 
  in 
  all 
  but. 
  volvul 
  a, 
  where 
  it 
  is 
  cylindrical 
  and 
  

   slightly 
  impressed. 
  The 
  antenna? 
  ar/e 
  9-jointed, 
  with 
  the 
  joints 
  3 
  — 
  5 
  connate, 
  the 
  

   6th 
  slightly 
  produced 
  inwards. 
  The 
  last 
  joint 
  of 
  the 
  abdomen 
  is 
  tolerably 
  large, 
  

   merely 
  flattened 
  and 
  not 
  impressed 
  in 
  the 
  males. 
  The 
  inner 
  spur 
  of 
  the 
  posterior 
  

   tibia? 
  of 
  the 
  male 
  is 
  fixed, 
  and 
  straight 
  in 
  the 
  species 
  here 
  described. 
  The 
  tarsi 
  

   especially 
  of 
  the 
  males 
  are 
  very 
  long, 
  and 
  the 
  claws 
  are 
  armed 
  with 
  a 
  small 
  tooth 
  in- 
  

   side 
  of 
  the 
  middle. 
  

   ">. 
  \i 
  frontalis, 
  elongata, 
  eylindrica 
  pallide 
  testacea, 
  capiti 
  fusco 
  rude 
  punctato, 
  canaliculate, 
  clypeo 
  

  

  