﻿MELOLONTHIDiE 
  OF 
  THE 
  UNITED 
  STATES. 
  285 
  

  

  ceding 
  by 
  the 
  silvery 
  scales 
  of 
  the 
  under 
  surface 
  and 
  pygidium, 
  and 
  by 
  the 
  stronger 
  

   pubescence. 
  The 
  thorax 
  is 
  not 
  as 
  wide. 
  

  

  3. 
  II. 
  c 
  o 
  n 
  v 
  e 
  x 
  u 
  1 
  a, 
  oblonga, 
  picea, 
  subtus 
  et 
  pygidio 
  parcc 
  pubeseens, 
  ct 
  subargenten 
  squamosa, 
  supra 
  

  

  parce 
  breviter 
  pubeseens, 
  pallide 
  squamosa, 
  thorace 
  latitudine 
  paulo 
  breviore 
  magis 
  conTexo, 
  latcribm 
  

   magis 
  rotundatis, 
  elytris 
  baud 
  costatis 
  ; 
  unguibus 
  anterioribus 
  fissis, 
  medio 
  interno 
  plus 
  du] 
  1" 
  luv\ 
  ior 
  . 
  

   postico 
  integro. 
  Long. 
  "24. 
  

  

  One 
  specimen, 
  Sacramento, 
  Mr. 
  Wittick. 
  Resembles 
  the 
  next 
  species 
  in 
  the 
  verj 
  

   small 
  size 
  of 
  the 
  middle 
  inner 
  claw, 
  but 
  differs 
  by 
  the 
  more 
  convex 
  rounded 
  thorax 
  

   and 
  by 
  the 
  pubescence, 
  which 
  is 
  no 
  longer 
  on 
  the 
  thorax 
  than 
  on 
  the 
  elytra. 
  

  

  4. 
  H. 
  pubicollis, 
  oblonga, 
  nigra, 
  subtus 
  et 
  pygidio 
  parce 
  pubeseens, 
  subargenteo-aqua;nosa, 
  supra 
  

  

  pallide 
  squamosa, 
  capite 
  thoraceque 
  longius 
  pubescentibus, 
  hoc 
  latitudine 
  paulo 
  breviore, 
  lateribus 
  

   obliquis 
  rotundatis 
  fimbriatis, 
  elytris 
  piceis 
  vix 
  breviter 
  pubescentibus 
  hard 
  costatis, 
  unguibus 
  ante- 
  

   rioribus 
  fissis, 
  interno 
  medio 
  plus 
  duplo 
  breviore, 
  postico 
  integro. 
  Long. 
  '28. 
  

  

  Of 
  California, 
  Mr. 
  J. 
  Child. 
  Of 
  the 
  same 
  form 
  as 
  the 
  preceding, 
  but 
  differing 
  by 
  

   the 
  elytra 
  being 
  free 
  from 
  lines 
  or 
  elevations, 
  and 
  by 
  the 
  longer 
  hair 
  of 
  the 
  thorax. 
  

  

  5. 
  II. 
  callipyge, 
  oblonga, 
  nigra, 
  subtus 
  et 
  pygidio 
  parce 
  pubeseens, 
  dense 
  argenteo-squamosa, 
  supra 
  

  

  pube 
  erecta 
  in 
  thorace 
  longiore 
  sat 
  dense 
  vestita, 
  pallide 
  squamulosa, 
  nigro-punetata, 
  thorace 
  convexius- 
  

   culo, 
  latitudine 
  parum 
  breviore, 
  lateribus 
  fimbriatis 
  obliquis 
  rotundatis, 
  elytris 
  castaneis, 
  eosta 
  dorsali 
  

   parum 
  notata, 
  postice 
  paulo 
  retusis 
  ; 
  unguibus 
  anterioribus 
  fissis, 
  minoribus 
  vix 
  duplo 
  brevioribus, 
  pos- 
  

   tico 
  integro. 
  Long. 
  -SO 
  — 
  34. 
  

   California, 
  Mr. 
  J. 
  Wittick. 
  Of 
  the 
  same 
  form 
  as 
  the 
  preceding, 
  but 
  distinguished 
  

   by 
  the 
  pubescent 
  elytra 
  being 
  slightly 
  retuse 
  behind, 
  and 
  concave 
  towards 
  the 
  suture. 
  

   and 
  by 
  the 
  splendid 
  silvery 
  lustre 
  of 
  the 
  pygidium 
  and 
  under 
  surface. 
  In 
  one 
  speci- 
  

   men 
  the 
  scales 
  of 
  the 
  thorax 
  are 
  more 
  condensed 
  along 
  the 
  middle 
  and 
  sides. 
  

  

  6. 
  II. 
  debilis, 
  elongato-oblonga 
  nigra, 
  squamis 
  angustis 
  albis 
  undique 
  minus 
  dense 
  eonspersa, 
  parce 
  

  

  cinereo-pubescens, 
  thorace 
  pilis 
  longioribus 
  erectis 
  vestito, 
  latitudine 
  vix 
  breviore, 
  lateribus 
  rotundatis 
  

   baud 
  obliquis, 
  unguiculis 
  anterioribus 
  fissis, 
  postico 
  integro. 
  Long. 
  "25. 
  

  

  One 
  specimen 
  found 
  in 
  Pennsylvania 
  was 
  kindly 
  sent 
  me 
  by 
  Dr. 
  Melsheimer. 
  Of 
  

   the 
  size 
  and 
  appearance 
  of 
  H. 
  convexula, 
  but 
  more 
  elongate, 
  with 
  the 
  sides 
  of 
  the 
  

   thorax 
  less 
  rounded. 
  The 
  thorax 
  is 
  hardly 
  distinctly 
  narrowed 
  in 
  front, 
  except 
  in 
  

   consequence 
  of 
  the 
  gradual 
  curvature 
  of 
  the 
  sides, 
  which 
  thus 
  do 
  not 
  appear 
  oblique, 
  

   nor 
  at 
  all 
  angulated. 
  The 
  elytra 
  are 
  at 
  base 
  wider 
  than 
  the 
  base 
  of 
  the 
  thorax, 
  and 
  

   somewhat 
  retuse 
  near 
  the 
  apex. 
  The 
  middle 
  claws 
  are 
  wanting, 
  the 
  outer 
  one 
  of 
  the 
  

   anterior 
  tarsi 
  is 
  one 
  third 
  shorter 
  than 
  the 
  inner 
  one. 
  

  

  7. 
  H. 
  m 
  o 
  d 
  e 
  s 
  t 
  a, 
  oblonga, 
  nigra, 
  vel 
  testacea, 
  capite 
  thoraceque 
  fuscis, 
  subtus 
  et 
  pygidio 
  parce 
  pubeseens, 
  

  

  argenteo-squamosa, 
  capite 
  thoraceque 
  pube 
  erecta 
  vestitis, 
  hoc 
  pallide 
  squamuloso, 
  planiusculo, 
  lateribus 
  

   obliquis 
  parum 
  rotundatis, 
  elytris 
  pilis 
  fusco-pallidis 
  depressis 
  lanceolatis 
  minus 
  dense 
  vestitis, 
  obsolete 
  

   costatis, 
  saepe 
  testaceis 
  : 
  unguibus 
  anterioribus 
  fissis, 
  minoribus 
  duplo 
  brevioribus, 
  postico 
  fisso. 
  Long. 
  

   •24—31. 
  

  

  IHald. 
  Proc. 
  Acad. 
  Nat. 
  Sc. 
  1, 
  304. 
  

  

  Hopliu 
  singularis 
  Burm. 
  Lamell. 
  2, 
  192. 
  

  

  