﻿BOiMBlNATOR. 
  161 
  

  

  Male 
  (ventral 
  view) 
  and 
  female 
  (dorsal 
  view) 
  

   specimens 
  from 
  near 
  Dinant, 
  Belgium, 
  are 
  figured 
  on 
  

   the 
  right 
  side 
  of 
  PI. 
  V. 
  Ventral 
  views 
  of 
  specimens 
  

   from 
  the 
  Serra 
  San 
  Bruno, 
  Calabria 
  (fig. 
  3), 
  Basle, 
  

   Switzerland 
  (fig. 
  4), 
  and 
  Schemnitz, 
  Hungary 
  (fig. 
  5), 
  

   are 
  given 
  on 
  PI. 
  VI. 
  

  

  Hybrids. 
  — 
  Mebely 
  has 
  pointed 
  out 
  that 
  in 
  the 
  few 
  

   places 
  in 
  Hungary 
  where 
  the 
  two 
  species 
  occur 
  

   together, 
  intermediate 
  specimens 
  are 
  found 
  such 
  as 
  

   are 
  not 
  to 
  be 
  procured 
  from 
  other 
  localities. 
  These 
  

   specimens 
  are 
  no 
  doubt 
  hybrids. 
  Heron-Royer 
  suc- 
  

   ceeded 
  in 
  crossing 
  the 
  two 
  species 
  in 
  both 
  directions, 
  

   and 
  four 
  nearly 
  adult 
  hybrids 
  are 
  described 
  and 
  

   figured 
  by 
  him 
  in 
  ' 
  Mem. 
  Soc. 
  Zool. 
  France,' 
  1891, 
  

   p. 
  81. 
  These 
  hybrids, 
  which 
  proved 
  fertile, 
  and 
  pro- 
  

   duced 
  a 
  second 
  generation, 
  were 
  nearly 
  intermediate 
  

   between 
  the 
  parent 
  forms, 
  but 
  somewhat 
  nearer 
  

   B. 
  igneas, 
  whether 
  the 
  latter 
  was 
  the 
  father 
  or 
  the 
  

   mother 
  : 
  the 
  ventral 
  spots 
  were 
  lemon-yellow 
  on 
  a 
  

   black 
  ground 
  ; 
  the 
  digits 
  were 
  not 
  tipped 
  with 
  bright 
  

   yellow 
  ; 
  the 
  inner 
  finger 
  and 
  the 
  inner 
  toe 
  were 
  yellow 
  

   in 
  one 
  specimen, 
  in 
  the 
  others 
  the 
  inner 
  finger 
  was 
  

   black, 
  but 
  the 
  inner 
  toe 
  yellow. 
  

  

  