﻿28 
  REVISION 
  OF 
  THE 
  CICINDELiE 
  OF 
  THE 
  UNITED 
  STATES. 
  

  

  these 
  comparisons 
  I 
  have 
  availed 
  myself 
  of 
  the 
  copious 
  collection 
  of 
  foreign 
  species 
  be- 
  

   longing 
  to 
  the 
  Academy 
  of 
  Natural 
  Sciences, 
  and 
  but 
  recently 
  presented 
  to 
  that 
  institution 
  

   by 
  Mr. 
  John 
  A. 
  Guex. 
  As 
  many 
  groups 
  of 
  foreign 
  species 
  are 
  not 
  represented 
  in 
  our 
  fau- 
  

   na, 
  1 
  have 
  indicated 
  such 
  as 
  could 
  be 
  conveniently 
  placed 
  in 
  the 
  table 
  following; 
  these 
  

   are 
  marked 
  by 
  brackets, 
  and 
  I 
  have 
  also 
  occasionally 
  added 
  the 
  name 
  of 
  a 
  foreign 
  species? 
  

   also 
  within 
  brackets, 
  where 
  the 
  American 
  representatives 
  of 
  the 
  group 
  were 
  not 
  likely 
  to 
  

   be 
  extensively 
  known. 
  The 
  table 
  thus 
  has 
  assumed 
  the 
  form 
  of 
  a 
  general, 
  but 
  very 
  im- 
  

   perfect, 
  arrangement 
  of 
  the 
  contents 
  of 
  the 
  genus. 
  

  

  While 
  examining 
  the 
  foreign 
  species, 
  my 
  attention 
  was 
  directed 
  to 
  the 
  impossibility 
  of 
  

   reconciling 
  the 
  system 
  of 
  marking 
  of 
  the 
  East 
  Indian 
  C. 
  ■i-lineuta 
  F<ihr. 
  with 
  that 
  seen 
  in 
  

   any 
  of 
  the 
  groups 
  of 
  genuine 
  Cicindelai 
  ; 
  but 
  on 
  closer 
  inspection 
  I 
  found 
  that 
  accom- 
  

   panying 
  the 
  two 
  yellow 
  stripes 
  on 
  each 
  elytron, 
  was 
  a 
  remarkable 
  character 
  that 
  seems 
  

   to 
  have 
  escaped 
  previous 
  observers. 
  It 
  is 
  the 
  presence 
  of 
  a 
  longitudinal 
  dorsal 
  suture 
  

   each 
  side 
  of 
  the 
  thorax 
  : 
  the 
  pronotum, 
  or 
  tergum, 
  is 
  in 
  fact 
  narrowed, 
  while 
  the 
  mass 
  

   of 
  the 
  prothorax 
  is 
  subjected 
  to 
  no 
  diminution; 
  the 
  lateral 
  sutures 
  separating 
  the 
  pro- 
  

   notum 
  from 
  the 
  lateral 
  pieces 
  of 
  the 
  prothorax, 
  which 
  in 
  all 
  other 
  species 
  are 
  seen 
  on 
  

   the 
  under 
  surface, 
  in 
  this 
  instance 
  become 
  dorsal. 
  This 
  peculiarity 
  seems 
  to 
  necessitate 
  

   the 
  formation 
  of 
  a 
  new 
  genus, 
  for 
  which 
  the 
  name 
  Ilypcdlia 
  may 
  be 
  adopted. 
  

  

  The 
  system 
  of 
  colouration 
  is 
  called 
  normal 
  in 
  the 
  following 
  pages 
  when 
  the 
  under 
  sur- 
  

   face 
  and 
  legs 
  are 
  of 
  a 
  more 
  or 
  less 
  metallic 
  colour; 
  the 
  abnormal 
  variations 
  are 
  few, 
  and 
  

   consist 
  in 
  the 
  abdomen 
  being 
  red, 
  or 
  the 
  legs 
  in 
  part 
  or 
  in 
  whole 
  pale 
  or 
  red, 
  without 
  me- 
  

   tallic 
  lustre. 
  

  

  The 
  spots 
  of 
  the 
  elytra 
  are 
  normal, 
  when 
  they 
  are 
  of 
  the 
  following 
  type, 
  more 
  or 
  less 
  

   reduced 
  by 
  deficiency 
  ; 
  a 
  humeral 
  narrow 
  curved 
  spot, 
  called 
  lunule 
  ; 
  a 
  middle 
  band 
  more 
  

   or 
  less 
  bent, 
  and 
  descending 
  internally; 
  and 
  an 
  apical 
  curved 
  line 
  usually 
  bent 
  inwards 
  

   at 
  its 
  anterior 
  part 
  : 
  these 
  spots 
  are 
  sometimes 
  confluent 
  on 
  the 
  margin, 
  and 
  sometimes 
  

   separate 
  : 
  they 
  are 
  sometimes 
  entire, 
  and 
  sometimes 
  interrupted, 
  and 
  occasionally 
  reduced 
  

   to 
  merely 
  marginal 
  spots. 
  

  

  Abnormal 
  variations 
  occur; 
  1, 
  by 
  additional 
  spots 
  at 
  the 
  base 
  or 
  near 
  the 
  suture 
  

   (groups 
  xi., 
  xii., 
  xiii. 
  ;) 
  2, 
  by 
  the 
  deficiency 
  of 
  the 
  terminal 
  part 
  of 
  the 
  apical 
  lunule, 
  while 
  

   its 
  anterior 
  part 
  is 
  well 
  marked, 
  (groups 
  il, 
  in., 
  xvn. 
  ;) 
  3, 
  by 
  the 
  inner 
  portion 
  of 
  the 
  middle 
  

   band 
  being 
  lost, 
  while 
  the 
  external 
  marks 
  become 
  confluent, 
  forming 
  a 
  broad 
  white 
  mar- 
  

   gin, 
  only 
  slightly 
  lobed 
  internally 
  (groups 
  xx., 
  xxi., 
  xxii. 
  :) 
  4, 
  by 
  the 
  marks 
  being 
  removed 
  

   more 
  or 
  less 
  from 
  the 
  margin 
  of 
  the 
  elytron 
  (group 
  x. 
  ; 
  and 
  still 
  more 
  in 
  xxiii.) 
  

  

  The 
  form 
  is 
  called 
  normal 
  when 
  the 
  humeral 
  angles 
  are 
  distinct, 
  and 
  the 
  elytra 
  mode- 
  

   rately 
  convex 
  and 
  oval, 
  when 
  the 
  head 
  and 
  eyes 
  are 
  moderately 
  large, 
  but 
  not 
  excessive, 
  

   and 
  when 
  the 
  thorax 
  is 
  cuiadrate, 
  trapezoidal, 
  or 
  subeylindrical, 
  with 
  well-marked 
  impres- 
  

  

  