﻿490 
  REVISION 
  OF 
  TUB 
  ELATERIDiE 
  

  

  Alaus 
  Esch. 
  

  

  1. 
  A. 
  oculatus, 
  niger, 
  nitidus, 
  pilis 
  albi<lis 
  irrcgularitcr 
  inacidatus, 
  thorace 
  convcxiusculo, 
  disco 
  

   utrinque 
  macula 
  magna 
  elliptica 
  nigro-sericea 
  albo-marginata 
  ornato. 
  Long. 
  1-25 
  — 
  L7- 
  

  

  chscholtz, 
  Than 
  Ent. 
  Arclnv., 
  1829; 
  Germ. 
  Zeitschr. 
  2, 
  275. 
  

   Ebi 
  ttus 
  Linne, 
  Mus. 
  Ubr. 
  81; 
  Syst. 
  Nat. 
  2, 
  651: 
  Fabr. 
  Ent. 
  Syst. 
  210; 
  Ent. 
  Syst. 
  emend. 
  

  

  2, 
  217; 
  Syst. 
  El. 
  2, 
  222: 
  Oliv. 
  31, 
  11; 
  tab. 
  3, 
  fig. 
  31: 
  Herbst, 
  Kafer, 
  9, 
  327; 
  tab. 
  157, 
  fig. 
  7: 
  

   Beauv. 
  213; 
  tab. 
  9, 
  fig. 
  4. 
  

  

  Common 
  through 
  the 
  Atlantic 
  portions 
  of 
  the 
  United 
  States, 
  extending 
  into 
  Mexico. 
  

   A 
  variety 
  brought 
  from 
  Texas, 
  by 
  Lieut. 
  Ilaldeman, 
  has 
  the 
  sides 
  of 
  the 
  thorax 
  entirely 
  

   covered 
  with 
  the 
  white 
  scales, 
  which 
  usually 
  form 
  only 
  small 
  spots: 
  the 
  eye-like 
  spots 
  are 
  

   nearly 
  round, 
  and 
  the 
  white 
  scales 
  upon 
  .the 
  elytra 
  are 
  more 
  abundant. 
  The 
  thorax 
  of 
  

   the 
  females 
  is 
  more 
  decidedly 
  narrowed 
  in 
  front, 
  and 
  more 
  convex 
  than 
  that 
  of 
  the 
  males. 
  

  

  2. 
  A. 
  my 
  ops, 
  niger, 
  nitidus, 
  pilis 
  cinereis 
  irregulariter 
  conspersus, 
  thorace 
  minus 
  convexo, 
  an- 
  

   tice 
  sublatiore, 
  disco 
  utrinque 
  macula 
  angusta 
  elliptica 
  nigro-sericea, 
  cinerco-marginata 
  ornato. 
  

   Long: 
  -95— 
  1-8. 
  

  

  Eschscholtz, 
  Thon 
  Ent. 
  Archiv. 
  1829 
  ; 
  Germ. 
  Zeitschr. 
  2, 
  275. 
  

   Mater 
  myops 
  Fabr. 
  Syst. 
  El. 
  2, 
  222. 
  

  

  Mater 
  luseustOYiv. 
  31, 
  12; 
  tab. 
  0, 
  fig. 
  64: 
  Herbst, 
  Kafer, 
  9, 
  329; 
  tab. 
  157, 
  fig. 
  8: 
  Beauv. 
  213; 
  

   tab. 
  9, 
  fig. 
  5. 
  

  

  Middle 
  States, 
  rare; 
  Southern 
  States, 
  abundant: 
  found 
  also 
  in 
  Oregon 
  by 
  Capt. 
  Wilkes' 
  

   Exploring 
  Expedition. 
  The 
  confusion 
  in 
  the 
  name 
  of 
  the 
  species 
  seems 
  to 
  have 
  been 
  in- 
  

   troduced 
  by 
  Olivier 
  applying 
  to 
  it 
  a 
  name 
  given 
  by 
  Fabricius 
  to 
  a 
  distinct 
  species, 
  not 
  

   known 
  in 
  modern 
  collections: 
  the 
  immaculate 
  body, 
  free 
  from 
  cinereous 
  pubescence, 
  and 
  

   the 
  absence 
  of 
  any 
  margin 
  to 
  the 
  eye-like 
  spots 
  of 
  the 
  thorax, 
  will 
  fully 
  distinguish 
  E. 
  

   I 
  uscu 
  s, 
  whenever 
  it 
  is 
  found. 
  Fabricius, 
  with 
  a 
  carelessness 
  which 
  is 
  but 
  too 
  frequent 
  in 
  

   his 
  writings, 
  then 
  quotes 
  Olivier's 
  figure 
  as 
  belonging 
  to 
  his 
  E. 
  luscus, 
  while 
  on 
  the 
  pre- 
  

   ceding 
  page 
  he 
  has 
  already 
  described 
  the 
  insect 
  figured 
  by 
  Olivier, 
  under 
  the 
  name 
  of 
  E. 
  

   myops, 
  and 
  which 
  is 
  that 
  by 
  which 
  the 
  species 
  is 
  generally 
  known. 
  Beauvois 
  and 
  Herbst 
  

   merely 
  copy 
  Olivier's 
  error, 
  considering 
  it 
  as 
  sufficiently 
  endorsed 
  by 
  Fabricius. 
  

  

  De 
  Geer 
  (Mem. 
  4, 
  131), 
  tab. 
  17, 
  fig. 
  28) 
  describes 
  a 
  species 
  under 
  an 
  uncouth 
  Gallic 
  

   name, 
  which 
  it 
  is 
  not 
  necessary 
  to 
  repeat, 
  and 
  cites 
  E. 
  oculatus 
  Linn, 
  as 
  a 
  synonym: 
  his 
  

   figure, 
  however, 
  appears 
  to 
  represent 
  the 
  species 
  now 
  under 
  consideration. 
  

  

  As 
  there 
  is 
  no 
  evidence 
  that 
  Elater 
  luscus 
  Fahr, 
  is 
  found 
  within 
  the 
  limits 
  of 
  the 
  United 
  

   States, 
  it 
  is 
  not 
  safe 
  to 
  include 
  it 
  in 
  our 
  fauna. 
  

  

  Caudiophorus 
  Esch. 
  

  

  The 
  truncate 
  spine 
  of 
  the 
  prosternum, 
  fitting 
  like 
  a 
  wedge 
  into 
  the 
  prominent 
  and 
  

   deeply 
  cleft 
  mesostcrnum, 
  will 
  distinguish 
  this 
  group, 
  which 
  contains 
  only 
  one 
  genus: 
  the 
  

   trout 
  is 
  subangulated 
  and 
  margined, 
  moderately 
  convex, 
  slightly 
  impressed: 
  the 
  laminae 
  of 
  

   the 
  posterior 
  coxae 
  are 
  suddenly 
  dilated 
  internally. 
  The 
  tarsi 
  are 
  not 
  lobed 
  in 
  any 
  spe- 
  

   cies 
  known 
  to 
  me, 
  found 
  in 
  the 
  United 
  States. 
  

  

  