﻿256 
  Mr. 
  R. 
  C. 
  L. 
  Perkins 
  on 
  

  

  a 
  number 
  of 
  examples 
  were 
  found 
  in 
  the 
  Chitty 
  Collection 
  

   at 
  Oxford, 
  after 
  I 
  had 
  already 
  found 
  it 
  amongst 
  some 
  

   unmounted 
  and 
  unexamined 
  Devonshire 
  bees. 
  Although 
  

   on 
  the 
  Continent 
  this 
  Andrena 
  is 
  very 
  subject 
  to 
  the 
  attacks 
  

   of 
  Stylops 
  (those 
  thus 
  afiected 
  appearing 
  earher 
  than 
  

   healthy 
  individuals, 
  and 
  being 
  found 
  often 
  on 
  dandelion 
  

   flowers), 
  I 
  have 
  seen 
  no 
  stylopised 
  English 
  specimens. 
  

  

  A. 
  nana 
  IL. 
  {schenckella 
  Perez) 
  is 
  known 
  as 
  British 
  only 
  

   by 
  Kirby's 
  type, 
  but 
  will 
  probably 
  be 
  rediscovered 
  in 
  the 
  

   south-eastern 
  counties, 
  when 
  more 
  attention 
  is 
  paid 
  to 
  this 
  

   group 
  of 
  small 
  bees. 
  It 
  occurs 
  in 
  Germany, 
  Switzerland 
  

   and 
  France. 
  

  

  A. 
  moricella 
  and 
  alfkenella 
  are 
  probably 
  first 
  and 
  second 
  

   broods 
  of 
  a 
  single 
  species. 
  The 
  first 
  I 
  have 
  taken 
  on 
  Bras- 
  

   sica, 
  Veronica, 
  Bellis 
  and 
  Potentilla, 
  etc., 
  the 
  latter 
  on 
  white 
  

   Umbelliferae. 
  The 
  first 
  brood 
  appears 
  a 
  little 
  later 
  than 
  A. 
  

   parvula, 
  and 
  I 
  have 
  seen 
  stylopised 
  examples 
  of 
  each 
  brood. 
  

  

  A. 
  falsifica 
  is 
  a 
  local 
  species, 
  and 
  its 
  first 
  appearance 
  is 
  

   rather 
  later 
  than 
  that 
  of 
  A. 
  moricella. 
  It 
  visits 
  many 
  lowly 
  

   plants— 
  daisy, 
  wild-strawberry, 
  Veronica, 
  etc. 
  — 
  while 
  the 
  

   females 
  gather 
  much 
  pollen 
  from 
  Potentilla. 
  It 
  is 
  not 
  

   rarely 
  stylopised, 
  and 
  has 
  as 
  a 
  parasite 
  Nomada 
  flavogut- 
  

   tata. 
  It 
  is 
  single-brooded. 
  

  

  A.saundersella 
  (wana 
  Auct. 
  plur.) 
  is 
  a 
  widely 
  distributed 
  

   species, 
  probably 
  occurring 
  in 
  all 
  our 
  comities, 
  and 
  abun- 
  

   dant 
  in 
  some 
  parts 
  of 
  the 
  north 
  of 
  England. 
  Its 
  favourite 
  

   flowers 
  are 
  Veronica 
  and 
  white 
  Umbelliferae, 
  from 
  both 
  

   which 
  it 
  gathers 
  pollen, 
  but 
  it 
  also 
  visits 
  daisies, 
  Myosotis, 
  

   Potentilla, 
  Fragraria, 
  etc., 
  and 
  late 
  specimens 
  may 
  be 
  found 
  

   on 
  Ruhus. 
  Very 
  rarely 
  a 
  stray 
  example 
  of 
  a 
  second 
  genera- 
  

   tion 
  is 
  met 
  with. 
  It 
  is 
  very 
  subject 
  to 
  the 
  attacks 
  of 
  

   Stylops, 
  and 
  also 
  is 
  parasitised 
  by 
  Nomada 
  flavoguttata. 
  

  

  A. 
  nanula 
  is 
  known 
  to 
  me 
  as 
  British 
  only 
  by 
  a 
  single 
  $ 
  

   sent 
  to 
  Smith 
  by 
  Bridgman 
  of 
  Norwich, 
  and 
  the 
  continental 
  

   examples 
  that 
  I 
  have 
  seen 
  were 
  taken 
  in 
  July. 
  

  

  A. 
  subopaca 
  is 
  a 
  very 
  widely 
  distributed 
  species, 
  found, 
  

   I 
  expect, 
  in 
  nearly 
  all 
  counties 
  and 
  common 
  in 
  the 
  north. 
  

   Such 
  Scotch 
  specimens 
  as 
  I 
  have 
  examined, 
  passing 
  under 
  

   the 
  names 
  of 
  parvula 
  and 
  minutula, 
  really 
  belonged 
  to 
  

   this 
  species. 
  It 
  is 
  mostly 
  found 
  on 
  Veronica, 
  Bellis, 
  

   Fragraria, 
  etc., 
  and 
  is 
  normally 
  single-brooded, 
  appearing 
  

   later 
  than 
  parvida. 
  Once 
  on 
  the 
  south 
  coast 
  I 
  took 
  a 
  single 
  

   (^ 
  of 
  a 
  second 
  brood. 
  It 
  was 
  the 
  confusing 
  of 
  this 
  species 
  

   with 
  minutula 
  and 
  parvula 
  that 
  caused 
  Smith 
  to 
  err 
  in 
  

  

  