﻿356 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  VOL 
  96 
  

  

  of 
  the 
  mandibles 
  are 
  absent. 
  Both 
  subapterous 
  and 
  fully 
  winged 
  

   individuals 
  occur. 
  In 
  the 
  fully 
  winged 
  individuals 
  there 
  is 
  a 
  

   distinct 
  tuft 
  of 
  erect 
  hairs 
  at 
  the 
  juncture 
  of 
  the 
  marginal 
  and 
  

   submarginal 
  veins 
  of 
  the 
  forewing, 
  exactly 
  as 
  in 
  Cerocephala. 
  

   The 
  postmarginal 
  vein 
  is 
  absent 
  or 
  represented 
  by 
  merely 
  a 
  short 
  

   stub. 
  

  

  Type 
  of 
  the 
  genus. 
  — 
  Theocolax 
  foiiniciformis 
  Westwood. 
  

  

  THEOCOLAX 
  FORMICIFORMIS 
  Westwood 
  

  

  Plate 
  47, 
  Figs. 
  3, 
  3a; 
  Plate 
  48, 
  Figs. 
  1, 
  la, 
  lb 
  

  

  Theocolax 
  formiciformis 
  Westwood, 
  Philos. 
  Mag., 
  ser. 
  3, 
  vol. 
  1, 
  p. 
  127, 
  1832; 
  

  

  Thesaurus 
  entomologicus 
  Oxoniensis, 
  p. 
  138, 
  pi. 
  25, 
  fig. 
  11, 
  1874. 
  

   Laesthia 
  vespertina 
  Haliday, 
  Ent. 
  Mag., 
  vol. 
  1, 
  p. 
  336, 
  1833. 
  

   Cerocephala 
  formiciformis 
  (Westwood) 
  Walker, 
  Ent. 
  Mag., 
  vol. 
  2, 
  p. 
  149, 
  

  

  1834. 
  

  

  I 
  examined 
  Westwood's 
  type 
  of 
  this 
  species 
  in 
  the 
  Hope 
  

   Museum 
  at 
  Oxford, 
  England, 
  in 
  1927 
  and 
  compared 
  with 
  it 
  a 
  

   specimen 
  from 
  Blankenburg, 
  Thuringia, 
  previously 
  identified 
  by 
  

   Schmiedeknecht. 
  This 
  specimen, 
  now 
  in 
  the 
  U. 
  S. 
  National 
  Mu- 
  

   seum, 
  appeared 
  to 
  me 
  to 
  be 
  homotypic. 
  The 
  National 
  Museum 
  

   collection 
  also 
  contains 
  one 
  specimen 
  identified 
  by 
  Ruschka 
  and 
  

   said 
  to 
  have 
  been 
  reared 
  from 
  Anobium 
  striatum 
  Olivier 
  at 
  Stock- 
  

   holm, 
  Sweden. 
  This 
  specimen 
  is 
  considerably 
  paler 
  in 
  color 
  than 
  

   the 
  homotype 
  but 
  does 
  not 
  seem 
  to 
  differ 
  otherwise. 
  In 
  addition 
  

   to 
  these 
  two 
  specimens 
  the 
  collection 
  possesses 
  a 
  series 
  of 
  14 
  

   specimens 
  from 
  Auckland, 
  New 
  Zealand, 
  said 
  to 
  have 
  been 
  reared 
  

   from 
  Anobium-mf 
  ested 
  timber 
  by 
  E. 
  Bollard 
  and 
  D. 
  Spiller. 
  

   Apparently 
  this 
  series 
  does 
  not 
  differ 
  materially 
  from 
  the 
  homo- 
  

   type 
  except 
  that 
  one 
  female 
  in 
  the 
  lot 
  has 
  fully 
  developed 
  wings. 
  

   Except 
  for 
  the 
  perfectly 
  developed 
  wings, 
  this 
  winged 
  specimen 
  

   is 
  exactly 
  like 
  the 
  subapterous 
  females. 
  

  

  Although 
  the 
  species 
  has 
  usually 
  been 
  described 
  as 
  wingless, 
  as 
  

   a 
  matter 
  of 
  fact, 
  in 
  none 
  of 
  the 
  individuals 
  I 
  have 
  seen 
  are 
  the 
  

   wings 
  completely 
  absent, 
  usually 
  being 
  represented 
  by 
  small 
  stubs 
  

   approximately 
  twice 
  the 
  length 
  of 
  the 
  tegula. 
  In 
  the 
  fully 
  winged 
  

   individual 
  the 
  postmarginal 
  vein 
  is 
  represented 
  by 
  merely 
  a 
  very 
  

   short 
  stub 
  ; 
  the 
  marginal 
  vein 
  is 
  a 
  little 
  longer 
  than 
  the 
  submar- 
  

   ginal; 
  the 
  stigmal 
  vein 
  is 
  approximately 
  one-sixth 
  as 
  long 
  as 
  

   marginal, 
  slightly 
  curved 
  and 
  not 
  thickened 
  at 
  apex; 
  the 
  disk 
  of 
  

   wing 
  is 
  nearly 
  bare 
  ; 
  the 
  marginal 
  cilia 
  are 
  moderately 
  long, 
  and 
  

   there 
  is 
  an 
  erect 
  tuft 
  of 
  black 
  bristles 
  at 
  the 
  junction 
  of 
  marginal 
  

   and 
  submarginal 
  veins. 
  There 
  is 
  a 
  broad 
  fuscous 
  cloud 
  embracing 
  

   the 
  apical 
  half 
  of 
  the 
  marginal 
  and 
  all 
  of 
  the 
  stigmal 
  vein 
  and 
  

   extending 
  across 
  the 
  wing. 
  The 
  hind 
  wing 
  is 
  about 
  two-thirds 
  as 
  

  

  