﻿Manchester 
  Memoirs, 
  Vol, 
  xli. 
  (1897), 
  No. 
  4. 
  121 
  

  

  Legs 
  covered 
  - 
  with 
  long 
  white 
  soft 
  hairs 
  ; 
  especially 
  

   thick 
  and 
  close 
  on 
  the 
  tarsi. 
  Wings 
  clear 
  hyaline 
  ; 
  the 
  

   nervures 
  dark 
  fuscous 
  ; 
  the 
  second 
  and 
  third 
  cubital 
  cel- 
  

   lules 
  at 
  the 
  bottom 
  almost 
  equal 
  in 
  length 
  ; 
  the 
  first 
  

   recurrent 
  nervure 
  is 
  received 
  shortly 
  before 
  the 
  middle 
  ; 
  

   the 
  second 
  in 
  the 
  apical 
  third. 
  Abdomen 
  with 
  the 
  apices 
  

   of 
  the 
  segments 
  fringed 
  with 
  white 
  hairs 
  ; 
  the 
  basal 
  seg- 
  

   ment 
  sparsely 
  covered 
  with 
  long 
  white 
  hairs 
  ; 
  at 
  its 
  base 
  

   is 
  a 
  deep 
  triangular 
  depression 
  ; 
  the 
  ventral 
  segments 
  

   shining 
  ; 
  their 
  apices 
  fringed 
  with 
  white 
  hair. 
  

  

  Andrena 
  sodalis, 
  sp. 
  nov. 
  

  

  Long. 
  8 
  — 
  9 
  mm. 
  

  

  Hab. 
  Mussouri 
  (Rothncy). 
  

  

  Agrees 
  with 
  A 
  . 
  phccdra 
  and 
  A 
  . 
  reticulata 
  in 
  having 
  the 
  

   median 
  segment 
  reticulated 
  at 
  the 
  base 
  ; 
  from 
  the 
  former 
  

   it 
  may 
  be 
  known 
  by 
  there 
  being 
  a 
  triangular 
  keel 
  and 
  

   spot 
  in 
  the 
  middle 
  of 
  the 
  segment 
  at 
  the 
  base, 
  in 
  which 
  

   there 
  is 
  no 
  deep 
  triangular 
  depression 
  ; 
  from 
  the 
  latter 
  by 
  

   its 
  smaller 
  size 
  and 
  by 
  the 
  median 
  segment 
  not 
  being 
  

   transversely 
  striated. 
  

  

  Head 
  densely 
  covered 
  with 
  long 
  pale 
  fulvous 
  hairs, 
  

   hiding 
  the 
  sculpture 
  ; 
  the 
  front 
  and 
  vertex 
  finely 
  and 
  

   closely 
  rugose 
  ; 
  the 
  clypeus 
  strongly 
  punctured, 
  the 
  punc- 
  

   tures 
  distinctly 
  separated 
  ; 
  the 
  mandibles 
  deeply 
  grooved 
  ; 
  

   their 
  teeth 
  piceous. 
  Antennae 
  black 
  ; 
  the 
  apex 
  with 
  a 
  

   microscopic 
  down. 
  Thorax 
  above 
  thickly 
  covered 
  with 
  

   fulvous 
  hairs 
  ; 
  the 
  sides 
  and 
  head 
  with 
  longish 
  pale 
  hairs; 
  

   the 
  mesonotum 
  closely 
  and 
  rather 
  strongly 
  punctured, 
  less 
  

   closely 
  in 
  the 
  middle 
  towards 
  the 
  apex 
  ; 
  the 
  scutellum 
  

   punctured 
  pretty 
  much 
  as 
  the 
  base 
  of 
  the 
  mesonotum, 
  

   and 
  covered 
  with 
  longer 
  hairs. 
  Median 
  segment 
  with 
  an 
  

   oblique 
  slope 
  ; 
  the 
  base 
  with 
  a 
  double 
  row 
  of 
  short 
  thick 
  

   keels 
  ; 
  below 
  these 
  is 
  a 
  large 
  wide 
  triangular 
  shining 
  

   reticulated 
  space 
  ; 
  the 
  rest 
  of 
  the 
  segment 
  rugosely 
  punc- 
  

  

  