﻿MELOLONTHIDJE 
  OF 
  THE 
  UNITED 
  STATES. 
  257 
  

  

  tured, 
  punctures 
  somewhat 
  sparse. 
  Elytra 
  tolerably 
  strongly 
  punctured, 
  slightly 
  

   rugous, 
  with 
  the 
  sutural 
  costa 
  narrow 
  and 
  elevated; 
  the 
  discoidal 
  ones 
  may 
  be 
  traced, 
  

   and 
  the 
  submarginal 
  one 
  is 
  very 
  distinct, 
  and 
  somewhat 
  elevated 
  behind 
  the 
  middle. 
  

   Pygidium 
  of 
  the 
  female 
  conical, 
  not 
  very 
  prominent 
  at 
  tip, 
  smooth, 
  with 
  a 
  few 
  large 
  

   punctures 
  at 
  base. 
  Pectus 
  clothed 
  thinly 
  with 
  short 
  hair. 
  Abdomen 
  sparsely 
  strong 
  I; 
  

   punctured 
  at 
  the 
  sides 
  and 
  apex; 
  penultimate 
  segment 
  slightly 
  impressed 
  transver- 
  

   each 
  side; 
  last 
  segment 
  deeply 
  emarginate 
  and 
  ciliate 
  at 
  tip. 
  

  

  Care 
  must 
  be 
  taken 
  not 
  to 
  confound 
  this 
  species 
  with 
  L. 
  glaberrima 
  above 
  describe! 
  i 
  ; 
  

   the 
  female 
  of 
  the 
  latter 
  has 
  almost 
  precisely 
  the 
  same 
  form, 
  color 
  and 
  sculpture, 
  it 
  is 
  how- 
  

   ever 
  not 
  so 
  convex 
  ; 
  the 
  punctures 
  of 
  the 
  clypeus 
  are 
  as 
  distant 
  as 
  those 
  of 
  the 
  head. 
  

   and 
  the 
  pygidium 
  is 
  closely 
  punctured 
  and 
  not 
  conical; 
  the 
  antennae 
  are 
  10-jointed, 
  

   though 
  by 
  the 
  consolidation 
  of 
  the 
  articulations 
  this 
  fact 
  is 
  to 
  be 
  recognized 
  by 
  there 
  

   being 
  two 
  nodiform 
  joints 
  next 
  the 
  club; 
  and 
  finally 
  the 
  last 
  point 
  of 
  the 
  maxilla 
  r\ 
  

   palpi 
  are 
  externally 
  impressed. 
  

  

  45. 
  L. 
  r 
  o 
  b 
  u 
  s 
  t 
  a 
  , 
  oblonga, 
  convexa, 
  eastaneo-rufa, 
  obsolete 
  pruinosa, 
  capite 
  densius 
  punctato, 
  elypeo 
  mar- 
  

   gioato, 
  vix 
  obsolete 
  einarginato, 
  tboraco 
  sat 
  deuse 
  puuctato, 
  linea 
  media 
  lsevi, 
  lateribus 
  serratis, 
  eljtris 
  

   fortiter 
  sat 
  dense 
  punctatis 
  subcostatis, 
  pygidio 
  (ferainre) 
  conico, 
  peetove 
  dense 
  villoso, 
  uDguiculis 
  dente 
  

   longo 
  armatis. 
  Long. 
  -92. 
  

  

  One 
  female, 
  from 
  Kansas 
  near 
  the 
  Rocky 
  Mountains. 
  More 
  robust 
  than 
  the 
  other 
  

   species 
  of 
  this 
  division, 
  but 
  hardly 
  ovate, 
  convex, 
  brownish 
  red 
  ; 
  head 
  and 
  breast 
  

   darker. 
  Head 
  strongly 
  and 
  densely 
  punctured, 
  with 
  the 
  clypeus 
  margined, 
  but 
  

   scarcely 
  emarginate. 
  Thorax 
  scarcely 
  one-half 
  wider 
  than 
  the 
  head, 
  short, 
  less 
  densely 
  

   punctured 
  than 
  the 
  head, 
  with 
  a 
  smooth 
  dorsal 
  line 
  not 
  reaching 
  the 
  apex, 
  sides 
  

   rounded 
  in 
  front, 
  somewhat 
  serrate, 
  sparsely 
  ciliate. 
  Elytra 
  more 
  coarsely 
  punctured 
  

   than 
  the 
  thorax, 
  slightly 
  rugous, 
  very 
  slightly 
  pruinose, 
  sutural 
  costa 
  broad, 
  and 
  the 
  

   others 
  slightly 
  marked. 
  Propygidium 
  naked, 
  punctured 
  ; 
  pygidium 
  conical, 
  shining, 
  

   sparsely 
  but 
  coarsely 
  punctured, 
  apex 
  protuberant, 
  subtruncate. 
  Abdomen 
  paler 
  than 
  

   the 
  upper 
  surface, 
  punctured 
  at 
  the 
  sides 
  and 
  tip; 
  last 
  segment 
  flattened 
  in 
  the 
  middle 
  

   and 
  broadly 
  emarginate 
  at 
  tip; 
  penultimate 
  not 
  impressed. 
  Breast 
  densely 
  pilose; 
  

  

  ungues 
  with 
  a 
  long 
  tooth. 
  

  

  Group 
  XI. 
  

  

  A 
  group 
  containing 
  a 
  single 
  glabrous 
  species 
  having 
  the 
  antenna? 
  9-jointed, 
  with 
  

   the 
  joints 
  of 
  the 
  stem 
  short 
  and 
  serrate, 
  the 
  third 
  fourth 
  and 
  fifth 
  as 
  usual 
  consoli- 
  

   dated, 
  but 
  with 
  distinct 
  inner 
  angles. 
  The 
  clypeus 
  is 
  rounded 
  and 
  broadly 
  reflexed. 
  

   The 
  last 
  joint 
  of 
  the 
  maxillary 
  palpi 
  is 
  cylindrical, 
  the 
  mandibles 
  are 
  only 
  slightly 
  

   prominent. 
  The 
  sixth 
  joint 
  of 
  the 
  abdomen 
  is 
  shorter 
  than 
  in 
  .the 
  first 
  groups, 
  though 
  

   not 
  so 
  short 
  as 
  in 
  the 
  following 
  ones. 
  The 
  spur 
  of 
  the 
  posterior 
  tibia? 
  of 
  the 
  male 
  

   is 
  fixed 
  ; 
  the 
  tooth 
  of 
  the 
  claws 
  is 
  medial 
  and 
  short 
  ; 
  the 
  pectus 
  is 
  only 
  very 
  thinly 
  

   clothed 
  with 
  hair. 
  

  

  66 
  

  

  