﻿252 
  LE 
  CONTE.— 
  SYNOPSIS 
  OF 
  THE 
  

  

  characters. 
  The 
  thorax 
  is 
  shining, 
  and 
  the 
  punctures 
  are 
  equally 
  distributed 
  ; 
  the 
  

   sides 
  are 
  somewhat 
  senate, 
  and 
  behind 
  the 
  middle 
  are 
  nearly 
  parallel; 
  the 
  pygidium. 
  

   is 
  coarsely 
  punctured, 
  the 
  propygidium 
  is 
  nearly 
  smooth, 
  with 
  a 
  few 
  punctures 
  as 
  

   usual 
  at 
  the 
  margin. 
  The 
  abdomen 
  (of 
  the 
  female) 
  is 
  convex, 
  punctured 
  and 
  pubes- 
  

   cent 
  at 
  the 
  sides, 
  more 
  deeply 
  on 
  the 
  last 
  two 
  segments; 
  the 
  last 
  one 
  has 
  a 
  triangular 
  

   flattened 
  impression 
  at 
  the 
  middle; 
  the 
  pectus 
  is 
  thinly 
  clothed 
  with 
  fine 
  short 
  

   yellowish 
  hair 
  ; 
  the 
  tibia' 
  are 
  dark 
  brown, 
  and 
  the 
  tarsi 
  paler. 
  Burmeister, 
  not 
  having 
  

   seen 
  this 
  species, 
  places 
  it 
  as 
  identical 
  with 
  L. 
  micans. 
  

  

  32. 
  L. 
  rugosa, 
  t'errugineo-fusea 
  (vel 
  fusco-nigra) 
  oblonga, 
  convexa 
  nitida, 
  capite 
  densissime 
  punctata, 
  

   clypeo 
  tenue 
  marginato, 
  emarginato, 
  thorace 
  lateribus 
  fere 
  angulatis, 
  postice 
  subangustato, 
  coufertim 
  

   sat 
  fortiter 
  punctata, 
  Iinea 
  dorsali 
  lsevi, 
  elytris 
  punctatis 
  rugosis 
  subcostatis, 
  pygidio 
  parco 
  punctata, 
  

   pectore 
  breviter 
  villoso, 
  unguiculis 
  deutc 
  longo 
  armatis. 
  Long. 
  -80 
  — 
  -85. 
  

  

  Ancylonycha 
  rugosa 
  Mela. 
  Proc. 
  Acad. 
  Nat. 
  Sc. 
  2, 
  140 
  ; 
  Burra. 
  Lamell. 
  2, 
  2nd, 
  328. 
  

  

  Two 
  specimens 
  from 
  Platte 
  River. 
  According 
  to 
  the 
  authors 
  quoted, 
  it 
  is 
  found 
  in 
  

   Virginia 
  and 
  Pennsylvania. 
  The 
  propygidium 
  is 
  finely 
  and 
  sparsely 
  punctured; 
  the 
  

   sides 
  of 
  the 
  abdomen 
  are 
  finely 
  punctured, 
  with 
  the 
  punctures 
  larger 
  on 
  the 
  penulti- 
  

   mate 
  segment. 
  

  

  In 
  the 
  male 
  the 
  club 
  of 
  the 
  antennae 
  is 
  as 
  long 
  as 
  the 
  stem 
  ; 
  the 
  abdomen 
  is 
  

   Battened 
  in 
  the 
  middle 
  ; 
  the 
  penultimate 
  segment 
  has 
  a 
  deep 
  transverse 
  impression, 
  

   and 
  each 
  side 
  of 
  it 
  an 
  oblique 
  elevation 
  ; 
  the 
  last 
  segment 
  has 
  a 
  broad 
  reniform 
  im- 
  

   pression, 
  and 
  the 
  pygidium 
  is 
  broad 
  and 
  obtusely 
  rounded. 
  

  

  In 
  the 
  female 
  the 
  abdomen 
  is 
  convex, 
  the 
  last 
  segment 
  is 
  sparsely 
  punctured, 
  and 
  

   deeply 
  squarely 
  emarginate 
  ; 
  the 
  penultimate 
  segment 
  has 
  a 
  posterior 
  deep 
  tranverse 
  

   impression 
  ; 
  and 
  the 
  pygidium 
  is 
  triangular. 
  

  

  33. 
  L. 
  af 
  finis, 
  fusco-ferruginea, 
  oblonga, 
  convexa, 
  nitida, 
  capite 
  thoraceque 
  obscurioribus, 
  illo 
  coufer- 
  

   tissime 
  punctata, 
  clypeo 
  tenue 
  marginato, 
  emarginato, 
  thorace 
  grosse 
  punctato, 
  linea 
  dorsali 
  la:vi, 
  late- 
  

   ribus 
  fortiter 
  serratis 
  angulatis, 
  postice 
  subangustato, 
  elytris 
  punctulatis 
  vix 
  costatis, 
  pygidio 
  parce 
  

   punctato, 
  pectore 
  breviter 
  villoso, 
  unguiculis 
  dente 
  magno 
  armatis. 
  Long. 
  -73. 
  

  

  One 
  male, 
  upper 
  Missouri, 
  Dr. 
  F. 
  V. 
  Hayden. 
  Closely 
  related 
  to 
  the 
  preceding, 
  

   but 
  the 
  thorax 
  is 
  shorter, 
  more 
  narrowed 
  in 
  front, 
  and 
  strongly 
  serrate 
  on 
  the 
  sides 
  : 
  

   the 
  elytra 
  are 
  smoother, 
  not 
  rugose, 
  with 
  finer 
  punctures. 
  

  

  The 
  club 
  of 
  the 
  antennae 
  is 
  shorter 
  than 
  the 
  stem; 
  the 
  last 
  segment 
  of 
  the 
  abdomen 
  

   i.s 
  broadly 
  foveate 
  and 
  the 
  penultimate 
  segment 
  is 
  broadly 
  impressed, 
  with 
  a 
  straight 
  

   transverse 
  obtuse 
  elevation. 
  

  

  34. 
  L. 
  Kuocbii, 
  fusco-ferruginea, 
  capite 
  thoraceque 
  obscurioribus, 
  illo 
  densissime 
  punctato, 
  clypeo 
  

   tenuiter 
  marginato, 
  emarginato, 
  thorace 
  rude 
  confluenter 
  punctato, 
  lateribus 
  angulatis 
  fortiter 
  serratis. 
  

   postice 
  angustato, 
  elytris 
  coufertim 
  puuctato-rugosis 
  vix 
  costatis, 
  pygidio 
  punctata, 
  pectore 
  breviter 
  

   pubescente, 
  unguiculis 
  dente 
  magno 
  armatis. 
  Long. 
  -'JO. 
  

  

  Melolontha 
  Knochil 
  Gyll. 
  Schonh.'fiyn. 
  Ins. 
  App. 
  75. 
  

  

  Ancylonycha 
  Knochii 
  Blanch. 
  Cat. 
  Col. 
  Mus. 
  Paris, 
  133; 
  Burin. 
  Lamell. 
  2, 
  2d. 
  325. 
  

  

  