﻿MELOLONTHIDiE 
  OF 
  THE 
  UNITED 
  STATES. 
  231 
  

  

  Mas 
  antennarum 
  clava 
  magna, 
  clypeo 
  recte 
  truncato, 
  thoracis 
  margine 
  postico 
  longe 
  villoso. 
  LoDg. 
  -97 
  1-17. 
  

  

  Feniina 
  antennarum 
  clava 
  parva, 
  clypeo 
  antice 
  subsinuato, 
  thoracis 
  margine 
  postico 
  brevius 
  villoso, 
  tibiis 
  

   anticis 
  tridentatis. 
  Long. 
  1-05 
  — 
  1-35. 
  

  

  Oregon, 
  Washington 
  Territory 
  and 
  California. 
  So 
  similar 
  to 
  the 
  preceding 
  that 
  the 
  

   females 
  might 
  be 
  readily 
  confounded 
  ; 
  on 
  comparison, 
  however, 
  I 
  find 
  the 
  following 
  

   differences 
  independent 
  of 
  sex. 
  The 
  yellow 
  scale-like 
  hairs 
  are 
  lanceolate, 
  and 
  narrow, 
  

   being 
  on 
  the 
  elytra 
  about 
  four 
  times 
  as 
  long 
  as 
  their 
  width 
  ; 
  on 
  the 
  disc 
  of 
  the 
  thorax 
  

   especially 
  in 
  the 
  vitta) 
  they 
  are 
  broader, 
  but 
  towards 
  the 
  margins 
  they 
  are 
  elongated, 
  

   and 
  are 
  gradually 
  converted 
  into 
  long 
  hairs, 
  which 
  towards 
  the 
  apex 
  are 
  as 
  long 
  as 
  

   those 
  on. 
  the 
  back 
  of 
  the 
  head 
  : 
  the 
  sides 
  of 
  the 
  thorax 
  from 
  a 
  dorsal 
  view 
  appear 
  

   rounded, 
  and 
  not 
  angulated. 
  

  

  The 
  base 
  of 
  the 
  thorax 
  of 
  the 
  male 
  is 
  densely 
  fringed 
  with 
  long 
  yellowish 
  hair, 
  about 
  

   three-fourths 
  as 
  long 
  as 
  the 
  scutellum, 
  but 
  in 
  the 
  female 
  the 
  hair 
  is 
  not 
  longer 
  than 
  

   in 
  both 
  sexes 
  of 
  P. 
  10-lineata. 
  The 
  under 
  surface 
  is 
  as 
  in 
  the 
  preceding 
  ; 
  the 
  legs 
  

   are 
  however 
  ferruginous 
  in 
  every 
  specimen 
  before 
  me 
  : 
  the 
  margin 
  of 
  the 
  elytra, 
  the 
  

   pygidium 
  and 
  last 
  ventral 
  segment 
  are 
  also 
  usually 
  ferruginous. 
  

  

  The 
  study 
  of 
  the 
  genus 
  Lachnosterna 
  indicates 
  that 
  in 
  this 
  tribe 
  species 
  may 
  be 
  

   really 
  distinct, 
  although 
  almost 
  without 
  differences 
  in 
  form 
  and 
  sculpture, 
  otherwise 
  

   I 
  should 
  not 
  venture 
  to 
  distinguish 
  the 
  present 
  by 
  a 
  specific 
  name, 
  but 
  should 
  rather 
  

   class 
  it 
  as 
  a 
  race 
  of 
  P. 
  10-lineata. 
  

  

  5. 
  P. 
  v 
  a 
  r 
  i 
  o 
  1 
  o 
  s 
  a, 
  fusco-ferruginea, 
  undique 
  minus 
  dense 
  albido-pubescens, 
  capite 
  postice 
  villoso, 
  thorace 
  an- 
  

  

  trorsum 
  fortius 
  angustato, 
  lateribus 
  oblique 
  magis 
  rotundatis, 
  angulis 
  posticis 
  obtusis, 
  canaliculato 
  pube 
  

  

  deusiore 
  subtrivittato, 
  elytris, 
  sutura 
  anguste, 
  guttisque 
  pluribus 
  densius 
  pubcscentibus. 
  Long. 
  -8 
  — 
  9. 
  

  

  Mas 
  antennarum 
  clava 
  magna, 
  clypeo 
  concavo 
  antice 
  latiore 
  fere 
  recte 
  truncato, 
  thorace 
  margine 
  basali 
  medio 
  

  

  longe 
  villoso. 
  

  

  Femina 
  haud 
  visa. 
  

  

  Harris 
  Ins. 
  Inj. 
  Vegetation, 
  1st 
  ed. 
  30. 
  

  

  Melolontha 
  variolosa 
  Hentz, 
  Trans. 
  Am. 
  Phil. 
  Soc. 
  3, 
  256, 
  pi. 
  2, 
  fig. 
  5. 
  Harris, 
  Ins. 
  Inj. 
  Vegetation 
  

   2nd 
  ed. 
  28. 
  

  

  Middle 
  States, 
  Massachusetts, 
  New 
  Jersey. 
  This 
  species 
  seems 
  to 
  have 
  been 
  con- 
  

   founded 
  by 
  Erichson 
  and 
  Burmeister 
  with 
  the 
  following, 
  to 
  which 
  it 
  bears 
  but 
  little 
  

   resemblance 
  ; 
  or 
  at 
  least 
  the 
  name 
  has 
  been 
  quoted 
  as 
  a 
  synonym, 
  without 
  any 
  know- 
  

   ledge 
  of 
  the 
  object 
  or 
  figure 
  to 
  which 
  it 
  referred. 
  Apart 
  from 
  the 
  want 
  of 
  regular 
  

   vittae 
  on 
  the 
  elytra, 
  the 
  pubescence 
  is 
  much 
  less 
  dense, 
  the 
  occiput 
  clothed 
  with 
  long 
  

   hair, 
  the 
  thorax 
  is 
  shorter, 
  and 
  more 
  narrowed 
  anteriorly 
  and 
  more 
  rounded 
  on 
  the 
  

   sides, 
  the 
  body 
  is 
  less 
  elongated, 
  and 
  much 
  less 
  cylindrical 
  than 
  in 
  the 
  next 
  species. 
  

   The 
  abdomen 
  is 
  sometimes 
  fuscous, 
  sometimes 
  reddish 
  brown, 
  with 
  bands 
  of 
  whitish 
  

   pubescence. 
  

  

  C. 
  P. 
  occidentalis, 
  elongata, 
  eylindrica 
  ferrugineo-testacea 
  densius 
  pallide 
  pubescens, 
  thorace 
  antror- 
  

   sava 
  parum 
  angustato, 
  lateribus 
  rotundatis, 
  angulis 
  posticis 
  rectis, 
  vitta 
  dorsali 
  alba, 
  alteraque 
  utrinque 
  

  

  