﻿AMEL'ICAX 
  TYrHLOCYBINAE-GILLETTE. 
  753 
  

  

  Basal 
  segments 
  of 
  tergiim 
  somewhat 
  iufascated, 
  remainder 
  of 
  tergum 
  

   and 
  all 
  below 
  light 
  yellow. 
  

  

  Type.—^o. 
  3441', 
  U.S.N.M. 
  

  

  Described 
  from 
  two 
  females 
  sent 
  me 
  by 
  Professor 
  G. 
  C. 
  Davis. 
  The 
  

   pins 
  bear 
  labels 
  which 
  read, 
  " 
  Mich. 
  Ag. 
  Coll., 
  July 
  15, 
  '91. 
  Ac. 
  415 
  Sp.'' 
  

  

  This 
  species 
  stands 
  very 
  close 
  to 
  highly 
  colored 
  forms 
  of 
  3-fasciata 
  

   Say, 
  but 
  in 
  the 
  latter 
  species 
  the 
  coloration 
  is 
  in 
  the 
  form 
  of 
  spots 
  of 
  

   varying 
  size, 
  while 
  in 
  tunica 
  rubra 
  the 
  color 
  is 
  solid 
  with 
  no 
  indication 
  

   of 
  spots. 
  

  

  TYPHLOCYBA 
  TRICINCTA 
  Fitch. 
  

  

  lirythioneitra 
  tricincla 
  Fnoir, 
  Hoiiiop. 
  N. 
  Y. 
  St. 
  Cab. 
  Nat. 
  Hist., 
  IX, 
  [», 
  63, 
  

   IS.51 
  ; 
  Trans. 
  N. 
  Y. 
  St. 
  Agr. 
  Soc, 
  XVI, 
  pp. 
  392, 
  436, 
  1856; 
  lepriut 
  in 
  J.intner's 
  

   9th 
  Rep., 
  lus. 
  N. 
  Y., 
  p. 
  403, 
  1X93.— 
  Wals^ii, 
  rroc. 
  Bost. 
  Soc. 
  Nat. 
  Hist., 
  IX, 
  p. 
  

   317, 
  1864. 
  

  

  Typhlot'nha 
  tricincla 
  Woodworth, 
  Psyche, 
  V, 
  p. 
  213, 
  1889. 
  — 
  P.^ckard, 
  Forest 
  

   luserts, 
  p. 
  218, 
  1^90. 
  — 
  Weed, 
  Insects 
  and 
  Insecticides, 
  p. 
  84, 
  tig. 
  2, 
  1891; 
  p. 
  

   134, 
  tig. 
  2, 
  189.").— 
  OSBORX, 
  Proc. 
  la. 
  Acad. 
  Sci., 
  I. 
  Pt. 
  2, 
  p. 
  11, 
  1892.— 
  Vax 
  

   DrzEE, 
  Trans. 
  Am. 
  Ent. 
  Soc, 
  XXI, 
  p. 
  313, 
  1894. 
  - 
  Gillette 
  »S: 
  Baker, 
  Bull. 
  

   31, 
  Colo. 
  Agr. 
  Exp. 
  Sti)., 
  p. 
  113, 
  1895. 
  

  

  Doctor 
  Fitch 
  describes 
  tins 
  species 
  as 
  follows: 
  

  

  Pale 
  yellow 
  with 
  three 
  broad 
  bauds, 
  the 
  a.nterior 
  velvet 
  black, 
  occiii)ying 
  the 
  

   thorax 
  and 
  basal 
  half 
  of 
  scutel 
  ; 
  the 
  middle 
  bright 
  ferruginous 
  ending 
  outwardly 
  in 
  

   black, 
  forward 
  of 
  the 
  middle 
  of 
  the 
  elytra, 
  

   the 
  posterior 
  dusky 
  brown 
  on 
  the 
  iipex. 
  

   Length 
  0.12 
  inch. 
  

  

  \'ar. 
  a. 
  Anterior 
  band 
  sanguineous. 
  (See 
  

   Fig. 
  105). 
  

  

  Doctor 
  Fitch 
  took 
  this 
  species 
  upon 
  j.,,,^ 
  ios.-elvtron 
  of 
  TYPHLu.Yn77Ki<iN<TA. 
  

   raspberry 
  ami 
  currant 
  bushes 
  and 
  

  

  grupeviues, 
  aiul 
  in 
  his 
  later 
  writings 
  was 
  inclined 
  to 
  think 
  it 
  only 
  a 
  

   variety 
  of 
  ritis. 
  I 
  have 
  taken 
  the 
  species 
  at 
  Ames, 
  Iowa, 
  on 
  grape- 
  

   vines, 
  and 
  at 
  Fort 
  Collins, 
  Colorado, 
  on 
  grass. 
  I 
  have 
  received 
  it 
  from 
  

   others 
  as 
  follows 
  : 
  From 
  the 
  private 
  collection 
  of 
  Mr. 
  C. 
  A. 
  Hart, 
  Nos. 
  

   3L\ 
  514, 
  547, 
  502, 
  and 
  505, 
  all 
  from 
  Illinois; 
  also 
  a 
  number 
  of 
  specimens 
  

   taken 
  by 
  Mr. 
  Hart 
  at 
  Havana, 
  Illinois, 
  on 
  grapevines; 
  from 
  Iowa 
  

   Agricultural 
  College, 
  specimens 
  taken 
  at 
  Ames, 
  Iowa, 
  July 
  I; 
  from 
  

   Mr. 
  Otto 
  Heidemann, 
  specimens 
  marked, 
  "Marsh 
  Hall, 
  Md.;'" 
  from 
  .Mr. 
  

   F. 
  F. 
  Crevecceur, 
  specimens 
  taken 
  among 
  leaves 
  in 
  the 
  timber 
  at 
  

   Onaga, 
  Kansas, 
  in 
  early 
  spring; 
  from 
  the 
  U. 
  S, 
  National 
  Museum, 
  speci- 
  

   mens 
  marked, 
  "Mo., 
  Uiley, 
  Grape, 
  Sep. 
  12,'' 
  and 
  from 
  Professor 
  H. 
  E. 
  

   Weed, 
  specimens 
  marked, 
  "Ag. 
  Coll. 
  Mo."' 
  

  

  Doctor 
  Packard, 
  in 
  "Forest 
  Insects," 
  mentions 
  this 
  in.sect 
  as 
  injuri- 
  

   ously 
  abundant 
  ui)on 
  elm 
  trees. 
  

  

  Although 
  this 
  species 
  is 
  often 
  abundant 
  ui)on 
  grapevines 
  along 
  with 
  

   comes 
  and 
  its 
  varieties, 
  it 
  seems 
  to 
  me 
  to 
  be 
  a 
  very 
  distinct 
  and 
  w^ell 
  

   marked 
  species. 
  

  

  Proc. 
  X. 
  M, 
  vol. 
  XX 
  48 
  

  

  