﻿MELOLONTHIDiE 
  OF 
  THE 
  UNITED 
  STATES. 
  207 
  

  

  II. 
  

  

  2. 
  D. 
  subcostata, 
  fusco-ferruginea, 
  nitida, 
  oblonga, 
  convexa, 
  capite 
  hernihexagono, 
  grosse 
  punctato, 
  

  

  margine 
  reflexo, 
  antieo 
  vis 
  einarginato, 
  thorace 
  parcius 
  punctato, 
  lateribus 
  medio 
  valde 
  rutuudatis, 
  

   angulis 
  omnibus 
  acutis 
  vagc 
  impressis, 
  elytris 
  grossius 
  punctatis, 
  tricostatis, 
  tibiis 
  anticis 
  subtridentatis; 
  

   sutura 
  frontali 
  profunda 
  utrinque 
  exaraba, 
  vortice 
  late 
  conveso. 
  Long. 
  -39 
  — 
  -45. 
  

   Blanch. 
  Cat. 
  Col. 
  Mus. 
  Paris, 
  171. 
  

  

  Georgia 
  ; 
  not 
  rare. 
  Varies 
  a 
  little 
  in 
  the 
  outline 
  of 
  the 
  thorax, 
  and 
  in 
  the 
  depth 
  

   of 
  the 
  punctures; 
  it 
  is 
  however 
  always 
  obtusely 
  rounded 
  at 
  the 
  middle, 
  sinuate 
  before 
  

   and 
  behind, 
  with 
  acute 
  angles. 
  

  

  3. 
  D. 
  liberta, 
  nigro-picea 
  nitida, 
  oblonga, 
  convexa, 
  capite 
  hernihexagono, 
  tenuiter 
  marginato, 
  fortiter 
  

  

  punctato, 
  antice 
  haud 
  emarginato, 
  thorace 
  fortiter 
  Laud 
  dense 
  punctato, 
  parcius 
  in 
  medio, 
  lateribus 
  medio 
  

   rotundatis, 
  angulis 
  anticis 
  subacuminatis, 
  posticis 
  obtusis 
  haud 
  rotundatis, 
  omnibus 
  paulo 
  impressis, 
  

   elytris 
  fortius 
  punctatis, 
  concinne 
  tricostatis, 
  tibiis 
  anticis 
  tridentatis, 
  sutura 
  frontali 
  profunda, 
  vertice 
  

   planiusculo. 
  Long. 
  -45 
  — 
  -5. 
  

  

  Burm. 
  Lamell. 
  2, 
  2nd, 
  261. 
  

  

  Melolontha 
  liherta 
  Germ. 
  Ins. 
  Nov. 
  123. 
  

  

  Middle 
  and 
  Southern 
  States 
  ; 
  D. 
  tristis 
  Kirby, 
  placed 
  by 
  Burmeister 
  as 
  synony- 
  

   mous 
  with 
  this 
  species, 
  is 
  quite 
  distinct, 
  having 
  a 
  thickly 
  punctured 
  thorax, 
  of 
  a 
  

   different 
  form. 
  

  

  4. 
  D. 
  brevicollis, 
  oblonga, 
  convexa, 
  piceo-ferruginea 
  nitida, 
  capite 
  punctato, 
  hemibexagono, 
  antice 
  late 
  

  

  emarginato, 
  margine 
  anguste 
  reflexo, 
  sutura 
  frontali 
  profunda, 
  thorace 
  brevi 
  subtilius 
  punctato, 
  lateribus 
  

   oblique 
  rotundatis, 
  angulis 
  anticis 
  subacutis 
  posticis 
  fere 
  rectis, 
  omnibus 
  impressis; 
  elytris 
  subtilius 
  

   punctatis 
  et 
  tricostatis, 
  tibiis 
  anticis 
  obtuse 
  tridentatis. 
  Long. 
  -47. 
  

  

  One 
  specimen 
  collected 
  by 
  George 
  Gibbs, 
  Esq., 
  at 
  Steilacoom, 
  Washington 
  Ter- 
  

   ritory, 
  i 
  

  

  5. 
  D. 
  t 
  r 
  i 
  s 
  t 
  i 
  s 
  , 
  oblonga, 
  minus 
  convexa, 
  nigra 
  subnitida, 
  capite 
  dense 
  punctato 
  hemihexagono, 
  antice 
  

  

  subemarginato, 
  margine 
  anguste 
  reflexo, 
  sutura 
  frontali 
  profunda, 
  thorace 
  lateribus 
  oblique 
  rotundatis, 
  

   angulis 
  anticis 
  subacutis, 
  posticis 
  obtusis, 
  omnibus 
  paulo 
  impressis, 
  elytris 
  punctatis, 
  tricostatis, 
  tibiis 
  

   anticis 
  obtuse 
  tridentatis. 
  Long. 
  -43 
  — 
  -53. 
  

   Kirby, 
  Fauna 
  Bor. 
  Am. 
  130. 
  

  

  Middle 
  States 
  and 
  Lake 
  Superior, 
  not 
  rare. 
  

  

  III. 
  

  

  G. 
  D. 
  e 
  x 
  c 
  a 
  v 
  a 
  t 
  a, 
  oblonga, 
  nigro-picea, 
  nitida, 
  capite 
  vix 
  hemihexagono, 
  margine 
  reflexo 
  antice 
  fere 
  rotun- 
  

   dato, 
  grosse, 
  oceipite 
  parcius 
  punctato, 
  sutura 
  frontali 
  profunde 
  excavata, 
  fronte 
  transversim 
  carinata, 
  

   medio 
  subimpressa, 
  thorace 
  grosse 
  punctato, 
  antice 
  posticeque 
  versus 
  latera 
  transversim 
  excavato, 
  lateri- 
  

   bus 
  medio 
  rotundatis 
  angulis 
  anticis 
  subacuminatis, 
  elytris 
  rude 
  punctatis, 
  subcostatis, 
  tibiis 
  anticis 
  ' 
  

   subtridentatis. 
  Long. 
  -35. 
  

  

  One 
  specimen, 
  Georgia. 
  The 
  punctures 
  of 
  the 
  elytra 
  are 
  large, 
  and 
  sometimes 
  

   confluent, 
  they 
  are 
  mostly 
  arranged 
  in 
  rows, 
  except 
  towards 
  the 
  suture, 
  and 
  the 
  three 
  

   costa? 
  are 
  not 
  much 
  more 
  evident 
  than 
  the 
  other 
  intervals. 
  

  

  