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  PROCEEDINGS 
  OF 
  THE 
  FOURTH 
  ENTOMOLOGICAL 
  MEETING 
  

  

  The 
  upper 
  pair 
  of 
  mandibles 
  (" 
  Fresszangen 
  ") 
  is 
  attached 
  to 
  the 
  

   head 
  behind 
  the 
  angle 
  of 
  the 
  upper 
  lip. 
  Each 
  mandible 
  is 
  thread-like, 
  

   flattened, 
  curved, 
  inbent, 
  horny, 
  on 
  the 
  outer 
  side 
  thick, 
  and 
  rounded, 
  

   on 
  the 
  inner 
  side 
  sharp-edged 
  and 
  furnished 
  with 
  several 
  little 
  teeth, 
  

   mostly 
  towards 
  the 
  base. 
  Its 
  upper 
  side 
  is 
  level, 
  shining 
  black-brown, 
  

   and 
  not 
  longer 
  than 
  the 
  upper-lip. 
  

  

  The 
  lower 
  pair, 
  whose 
  roots 
  go 
  deeper 
  into 
  the 
  head, 
  are 
  curvedly 
  

   bent, 
  thread-shaped, 
  flat, 
  thinner 
  than 
  the 
  upper 
  ones 
  ; 
  on 
  the 
  inner 
  side, 
  

   before 
  the 
  tip, 
  they 
  have 
  rather 
  large 
  teeth. 
  The 
  constituent 
  parts, 
  

   smoothness, 
  colour 
  length, 
  are 
  as 
  in 
  the 
  upper 
  ones. 
  On 
  either 
  side 
  of 
  

   the 
  mouth 
  this 
  lower 
  pair 
  of 
  mandiles 
  is 
  covered 
  with 
  two 
  mobile 
  lips 
  

   separated 
  one 
  above 
  the 
  other 
  and 
  these 
  grow 
  upon 
  the 
  roots 
  of 
  the 
  

   mandibles. 
  They 
  are 
  linear, 
  flat, 
  obliquely 
  rounded 
  at 
  the 
  end. 
  The 
  

   exterior 
  margin 
  is 
  thick 
  and 
  rounded 
  ; 
  the 
  inner 
  is 
  made 
  up 
  of 
  a 
  thin 
  

   membrane 
  that 
  is 
  overgrown 
  with 
  fine 
  hairs 
  especially 
  towards 
  its 
  tip, 
  

   which 
  [hairs] 
  between 
  each 
  other 
  are 
  of 
  almost 
  equal 
  length 
  and 
  as 
  long 
  

   as 
  the 
  mandibles 
  (" 
  welche 
  unter 
  sich 
  fast 
  von 
  gleicher 
  leenge, 
  und 
  so 
  

   lang 
  wie 
  die 
  Fresszangen 
  sind 
  ") 
  

  

  The 
  lower 
  lip 
  is 
  flat 
  and 
  split 
  into 
  six 
  threads, 
  which 
  are 
  somewhat 
  

   pointed 
  at 
  the 
  tip 
  and 
  of 
  equal 
  length. 
  Both 
  the 
  outermost 
  pairs 
  are 
  

   more 
  rounded 
  and 
  bent 
  towards 
  the 
  two 
  inner, 
  that 
  are 
  quite 
  straight. 
  

   The 
  root 
  of 
  this 
  lower 
  lip 
  only 
  is 
  short, 
  level 
  and 
  of 
  paler 
  colour, 
  beset 
  

   with 
  fewer 
  hairs 
  than 
  where 
  it 
  is 
  split. 
  

  

  The 
  tongue 
  is 
  large, 
  round, 
  club-shaped, 
  blunt 
  at 
  the 
  tip, 
  with 
  a 
  

   rust-coloured 
  edge 
  all 
  round, 
  and 
  provided 
  with 
  a 
  transverse 
  line 
  over 
  

   the 
  middle. 
  Moreover, 
  it 
  is 
  smooth 
  and 
  contains 
  much 
  mucus. 
  

  

  The 
  thorax 
  is 
  rounded, 
  composed 
  of 
  three 
  sharply-defined 
  annular, 
  

   small 
  segments, 
  below 
  which 
  the 
  legs 
  are 
  attached. 
  It 
  is 
  much 
  narrower 
  

   than 
  the 
  head. 
  

  

  The 
  abdomen 
  (" 
  Bauch 
  ") 
  is 
  oval, 
  elongated 
  and 
  almost 
  double 
  the 
  

   size 
  of 
  the 
  forepart 
  of 
  the 
  body. 
  It 
  has 
  usually 
  eight 
  stumpy 
  annular 
  

   segments, 
  sometimes 
  more, 
  and 
  is 
  strewn 
  with 
  upstanding 
  hairs, 
  especi- 
  

   ally 
  on 
  the 
  sides 
  where 
  they 
  seem 
  to 
  be 
  longer. 
  

  

  There 
  is 
  nothing 
  remarkable 
  about 
  the 
  six 
  legs 
  ; 
  they 
  are 
  as 
  long 
  

   as 
  the 
  whole 
  body. 
  

  

  The 
  colour 
  of 
  the 
  head 
  is 
  yellow, 
  like 
  amber, 
  the 
  remaining 
  part 
  of 
  

   the 
  body 
  is 
  whitish. 
  

  

  Next 
  we 
  remark 
  the 
  female, 
  or 
  the 
  so-called 
  queen. 
  Her 
  head, 
  

   lips, 
  antennae, 
  jaws, 
  tongue 
  and 
  other 
  parts 
  are 
  of 
  like 
  nature 
  as 
  in 
  the 
  

   male 
  ; 
  only 
  they 
  arc 
  many 
  times 
  larger. 
  Beside 
  this, 
  above 
  the 
  antenna) 
  

   there 
  are 
  large, 
  projecting, 
  rounded, 
  black 
  eyes 
  and 
  ocelli, 
  

  

  