﻿750 
  riiOCKKIUXGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM. 
  

  

  from 
  the 
  U. 
  S. 
  National 
  Museum 
  labeled 
  " 
  Holderness, 
  K 
  H., 
  20/11," 
  

   aud 
  two 
  specimeus 
  from 
  Mr. 
  Otto 
  Heidemami 
  marked 
  " 
  Wasliingtoii, 
  

   I 
  ). 
  0." 
  

  

  Tliree 
  of 
  these 
  specimens 
  difler 
  from 
  the 
  types 
  in 
  that 
  they 
  are 
  more 
  

   infuscated 
  above, 
  even 
  the 
  scutellum 
  is 
  almost 
  entirely 
  dark. 
  

  

  Genus 
  TYPHLOCYBA 
  GeriTiar. 
  

  

  This 
  genus 
  is 
  rei)resented 
  by 
  a 
  good 
  number 
  of 
  species, 
  both 
  in 
  this 
  

   country 
  and 
  in 
  Europe, 
  but 
  I 
  was 
  surprised 
  to 
  notice 
  that 
  in 
  a 
  consider- 
  

   able 
  collection 
  of 
  Typhlvci/hincc 
  from 
  South 
  America, 
  collected 
  by 
  Mr. 
  

   H. 
  H. 
  Smith, 
  there 
  was 
  not 
  a 
  single 
  species 
  of 
  this 
  genus. 
  

  

  The 
  genus 
  is 
  characterized 
  by 
  many 
  species 
  that 
  are 
  beautifully 
  and 
  

   variously 
  marked 
  with 
  shades 
  of 
  red 
  and 
  black, 
  which 
  has 
  resulted 
  in 
  

   many 
  synonyms 
  and 
  varieties. 
  

  

  A 
  number 
  of 
  species 
  are 
  common 
  to 
  both 
  Euroi)e 
  and 
  Ajnerica. 
  

  

  ANALYTICAL 
  KEY 
  TO 
  THE 
  AMERICAN 
  SPECIES 
  OF 
  THE 
  (iENUS 
  TYPIILOCYBA.' 
  

  

  A. 
  Gi'ueral 
  color 
  aliovc 
  red. 
  

  

  B. 
  With 
  two 
  black 
  spots 
  on 
  vcitcx 
  hipinictata. 
  

  

  BB. 
  Without 
  distinct 
  markings. 
  

  

  C. 
  Pale 
  yellow 
  beneath 
  sanguinea. 
  

  

  CC. 
  Orange 
  beneath 
  coceima. 
  

  

  AA. 
  General 
  color 
  of 
  head 
  and 
  thorax 
  yellow; 
  elytra 
  more 
  or 
  less 
  colored 
  with 
  san- 
  

   guineous 
  or 
  1)l()od 
  brown. 
  

   B. 
  Elytra 
  blood 
  red 
  to 
  near 
  the 
  cross 
  veins. 
  

  

  C. 
  Head 
  and 
  thorax 
  yellow 
  tunicarubra. 
  

  

  CC. 
  Head 
  and 
  iirouotuni 
  marked 
  with 
  red 
  crerecccurii. 
  

  

  Bl. 
  Elytra 
  yellow, 
  banded 
  with 
  dark 
  blood 
  brown 
  across 
  their 
  middle, 
  the 
  band 
  

  

  becoming 
  black 
  on 
  the 
  costal 
  margin 
  frichicfa. 
  

  

  B2. 
  Elytra 
  blood 
  red 
  to 
  cross 
  veins, 
  their 
  tips, 
  costal 
  margin, 
  and 
  spot 
  on 
  middle 
  

  

  of 
  inner 
  margin 
  yellow 
  harlii. 
  

  

  B3. 
  Scutellum 
  entirely 
  bright 
  red 
  and 
  a 
  large 
  spot 
  of 
  the 
  same 
  color 
  on 
  the 
  middle 
  

  

  of 
  the 
  elytra 
  ruhrosciita. 
  

  

  B4:. 
  Elytra 
  finely 
  flecked 
  with 
  red, 
  the 
  extreme 
  tip 
  of 
  the 
  scutellum 
  jet 
  black. 
  

  

  trifasciata. 
  

   B5. 
  Elytra 
  with 
  two 
  ol>lique 
  red 
  lines, 
  one 
  on 
  the 
  clavus 
  and 
  one 
  on 
  the 
  inner 
  

  

  sector 
  ohliqiia. 
  

  

  B(). 
  Elytra 
  with 
  a 
  conspicuous 
  black 
  spot, 
  which 
  has 
  a 
  red 
  margin, 
  on 
  the 
  coriuni 
  

  

  at 
  the 
  middle 
  of 
  the 
  cla 
  val 
  suture 
  iUinoiensis. 
  

  

  B7. 
  Elytra 
  with 
  zigzag 
  red 
  lines 
  or 
  red 
  spots 
  ov, 
  in 
  smoky 
  species, 
  with 
  blood- 
  

   brown 
  or 
  j'ellowish 
  markings 
  cowes'. 
  

  

  C. 
  A 
  narrow 
  pale 
  median 
  line, 
  continuous 
  on 
  vertex, 
  prouotum, 
  and 
  scutellum; 
  

   also 
  a 
  pale 
  line 
  or 
  dash 
  either 
  side 
  of 
  this 
  on 
  vertex 
  and 
  prouotum.. 
  r»//(errtto. 
  

   CC. 
  Not 
  like 
  the 
  preceding. 
  

  

  D. 
  Color 
  almost 
  entirely 
  yellow, 
  reddish 
  markings 
  on 
  the 
  elytra, 
  last 
  ventral 
  

   segment 
  of 
  the 
  female 
  suddenly 
  produced 
  posteriorly 
  and 
  notched 
  at 
  the 
  

   tip 
  dcntaia. 
  

  

  ' 
  Tijphlociiha 
  vcnlralis 
  Berg 
  is 
  not 
  included 
  in 
  the 
  table. 
  It 
  is 
  the 
  last 
  species 
  given 
  

   in 
  the 
  text. 
  

  

  