﻿430 
  Mr. 
  T. 
  D. 
  A. 
  Cockerell 
  — 
  Descriptions 
  and 
  

  

  MegacJiUe 
  laticeps, 
  Smith, 
  var. 
  o. 
  

  

  (^ 
  . 
  — 
  Los 
  Banos, 
  Philippine 
  Is. 
  (Baker, 
  1790). 
  

  

  This 
  exactly 
  agrees 
  with 
  Smith's 
  account, 
  except 
  that 
  it 
  is 
  

   fully 
  11 
  mm. 
  long, 
  the 
  hair 
  on 
  the 
  cheeks 
  is 
  only 
  faintly 
  

   tinged 
  with 
  yellow, 
  and 
  the 
  first 
  four 
  abdominal 
  segments 
  

   have 
  entire 
  fulvous 
  hair-bands. 
  Unless 
  Smith's 
  type 
  was 
  in 
  

   poor 
  condition, 
  my 
  insect 
  must 
  represent 
  a 
  distinct 
  variety, 
  

   but, 
  I 
  think, 
  not 
  a 
  distinct 
  species. 
  

  

  MegachUe 
  perihirta, 
  Cockerell. 
  

  

  cJ 
  . 
  — 
  Los 
  Angeles 
  County, 
  California 
  (Co5'2«7/e/^). 
  U.S. 
  

   Nat. 
  Museum. 
  Denver, 
  Colorado, 
  Aug. 
  25 
  {Mrs. 
  C. 
  Bennett) 
  . 
  

  

  MegachUe 
  sidalcecp, 
  Cockerell. 
  

  

  ^.— 
  Del 
  Rio, 
  Texas, 
  May 
  1, 
  1907, 
  at 
  flowers 
  oi 
  Monarda 
  

   citriodora 
  (Bishojjp). 
  U.S. 
  Nat. 
  Museum. 
  

  

  Mefjachile 
  pereximia 
  (Cockerel)). 
  

  

  M. 
  vallorum, 
  Ckll., 
  is 
  no 
  doubt 
  the 
  female 
  of 
  pereximia. 
  

   The 
  type 
  oi 
  pereximia 
  has 
  the 
  first 
  r. 
  n. 
  entering 
  second 
  s.ni. 
  

   as 
  far 
  from 
  base 
  as 
  second 
  from 
  apex, 
  and 
  has 
  the 
  fringe 
  

   on 
  inner 
  side 
  of 
  anterior 
  basitarsus 
  mainl}' 
  black. 
  These 
  

   characters 
  vary 
  in 
  Texan 
  specimens 
  ; 
  some 
  from 
  Cotulla 
  and 
  

   Denton 
  have 
  the 
  first 
  r. 
  n. 
  exactly 
  meeting 
  first 
  t.-c., 
  and 
  in 
  

   these 
  the 
  fringe 
  on 
  inner 
  side 
  of 
  anterior 
  basitarsus 
  is 
  light 
  

   red, 
  only 
  black 
  at 
  base. 
  These 
  also 
  are 
  smaller 
  than 
  the 
  

   type. 
  However, 
  one 
  from 
  CotuUo 
  is 
  as 
  large 
  as 
  the 
  type, 
  

   and 
  a 
  Denton 
  male 
  has 
  the 
  first 
  r. 
  n. 
  entering 
  second 
  s.m., 
  

   though 
  not 
  so 
  far 
  from 
  base 
  as 
  in 
  type. 
  

  

  The 
  following 
  records 
  relate 
  to 
  material 
  from 
  Texas 
  : 
  — 
  

  

  (1) 
  Males 
  {pereximia). 
  — 
  Cotulla, 
  May 
  11, 
  at 
  Monarda 
  

   ptunctata 
  and 
  Verbesina 
  enceliuides 
  (Crawford) 
  ; 
  Co- 
  

   tulla, 
  May 
  5, 
  at 
  Coreopsis 
  {Craivford) 
  ; 
  Denton, 
  

   May 
  29, 
  at 
  Gailtardia 
  pulchelta 
  {Bishopyp) 
  ; 
  Dallas, 
  

   at 
  Amojpha 
  fruticusa, 
  May 
  9 
  [Bis/iopp) 
  ; 
  Dallas, 
  at 
  

   Gaillardia 
  putchella, 
  May 
  19 
  {Bishopp) 
  ; 
  Dallas, 
  

   July 
  1, 
  hair 
  of 
  face 
  cream-colour 
  {Bishojip) 
  ; 
  Paris, 
  

   May 
  24 
  {Bishopp) 
  ; 
  San 
  Antonio, 
  at 
  Coreopsis 
  carda- 
  

   minefolia. 
  May 
  4 
  {Craicford) 
  ; 
  New 
  Boston, 
  at 
  Tetra- 
  

   neuris 
  linearifolia, 
  Aug. 
  29 
  {Bishopp) 
  ; 
  Victoria, 
  at 
  

   Helianthus, 
  April 
  26 
  {Bishojip) 
  ; 
  Strmglown, 
  Sept. 
  7 
  

   (Bishopp) 
  } 
  Calvert_, 
  April 
  5 
  (Jones) 
  ; 
  Kerrville, 
  at 
  

  

  