﻿2S4 
  Mr. 
  T. 
  D. 
  A. 
  Cockerell 
  — 
  Descriptions 
  arid 
  

  

  base, 
  hind 
  femora 
  witli 
  mostly 
  pale 
  liair, 
  the 
  apical 
  tuft 
  

   dusky 
  reddish 
  ; 
  tibipe 
  and 
  tarsi 
  with 
  fuscous 
  hair, 
  a 
  con- 
  

   spicuous 
  ochreous 
  patch 
  at 
  apex 
  of 
  anterior 
  ones 
  in 
  front_, 
  

   hair 
  on 
  outer 
  side 
  of 
  middle 
  tibia 
  shining 
  mouse-colour 
  iu 
  

   certain 
  lights, 
  scopa 
  oi^ 
  hind 
  legs 
  black. 
  Wings 
  strongly 
  

   brownish, 
  first 
  r. 
  n. 
  joining 
  second 
  s.m. 
  more 
  than 
  a 
  third 
  

   from 
  its 
  apex 
  ; 
  apical 
  half 
  of 
  second 
  abdominal 
  segment 
  with 
  

   distinct 
  though 
  tine 
  punctures. 
  

  

  Hab. 
  Washington, 
  D.C. 
  (type 
  locality), 
  May 
  15 
  {Cockerell) 
  ; 
  

   Garrison, 
  N.Y. 
  {Eleth 
  Cattell). 
  

  

  This 
  is 
  evidently 
  Synha/onia 
  atriventris 
  fuscipes, 
  Robertson, 
  

   but 
  the 
  name 
  is 
  not 
  available 
  because 
  of 
  Tetralonia 
  fuscipes, 
  

   Mortiwitz. 
  It 
  is 
  possible, 
  but 
  I 
  now 
  think 
  not 
  probable, 
  

   that 
  T. 
  i/linoensis 
  (Roh.) 
  is 
  its 
  male; 
  should 
  this 
  prove 
  to 
  

   be 
  the 
  case, 
  the 
  name 
  illinoensis 
  will 
  have 
  to 
  be 
  used. 
  

  

  Tetralonia 
  cordleyi 
  oropMla, 
  subsp. 
  n. 
  

  

  5 
  . 
  — 
  Like 
  T. 
  cord/ei/i, 
  hut 
  with 
  abdominal 
  bands 
  broader, 
  

   that 
  on 
  second 
  segment 
  about 
  as 
  broad 
  at 
  the 
  sides 
  as 
  in 
  the 
  

   middle; 
  bands 
  on 
  second 
  and 
  tliird 
  segments 
  each 
  with 
  a 
  

   small 
  median 
  projection 
  on 
  upper 
  (basad) 
  side. 
  

  

  Hab. 
  Boulder, 
  Colorado, 
  June 
  .29 
  (T. 
  D. 
  A. 
  Cockerell). 
  

  

  Tetralonia 
  chrysophila^ 
  sp. 
  n. 
  

  

  $ 
  . 
  — 
  Lile 
  T. 
  aragaUi, 
  but 
  differing 
  as 
  follows 
  : 
  no 
  distinct 
  

   smooth 
  area 
  on 
  upper 
  part 
  of 
  clypeus 
  ; 
  hair 
  of 
  thorax 
  cream- 
  

   colour, 
  not 
  fulvous 
  ; 
  second 
  s.m. 
  larger 
  ; 
  apical 
  plate 
  of 
  

   abdomen 
  less 
  broadened 
  basally, 
  less 
  triangular 
  ; 
  abdominal 
  

   bands 
  much 
  whiter 
  ; 
  fifth 
  segment 
  dark 
  reddish 
  fuscous 
  in 
  

   middle, 
  white 
  at 
  sides. 
  

  

  Hab. 
  Las 
  Vegas, 
  New 
  Mexico, 
  at 
  flowers 
  of 
  Ribes 
  aareum, 
  

   May 
  ^ 
  {T. 
  D. 
  A. 
  Cockerell). 
  

  

  1 
  have 
  had 
  this 
  for 
  many 
  years, 
  labelled 
  as 
  a 
  variety 
  of 
  

   T.frater 
  {Cve^%.). 
  

  

  The 
  following 
  key 
  will 
  serve 
  for 
  the 
  separation 
  of 
  Tetra- 
  

   lonia 
  females 
  related 
  to 
  7'. 
  chrysophila 
  and 
  oropldla 
  : 
  — 
  

  

  Hind 
  spurs 
  hooked 
  at 
  end 
  ; 
  basal 
  half 
  of 
  

  

  second 
  abdominal 
  segment 
  covered 
  with 
  

  

  greyish-white 
  tomentum, 
  but 
  fuscous 
  

  

  tomentum 
  at 
  extreme 
  base, 
  norm 
  all}' 
  

  

  covered 
  by 
  fii'st 
  segment 
  dilecta 
  (Cress.). 
  

  

  Hind 
  spurs 
  not 
  hooked 
  1. 
  

  

  1. 
  lourth 
  abdnininal 
  segment 
  entirely 
  covered 
  

  

  with 
  black 
  hair 
  lyn 
  (Ckll.). 
  

  

  