﻿97 
  

  

  out 
  any 
  elbow, 
  and 
  with 
  a 
  round, 
  hairy, 
  bulbous 
  base, 
  possibly, 
  as 
  suggested 
  to 
  Mr. 
  

   Westvvood 
  by 
  Professor 
  Owen, 
  a 
  reservoir 
  of 
  some 
  powerfully 
  poisonous 
  liquid), 
  under 
  

   the 
  name 
  of 
  Glossina 
  morsitans, 
  Westiuood. 
  

  

  " 
  The 
  specimens 
  now 
  laid 
  before 
  the 
  Society, 
  agree 
  exactly 
  with 
  Mr. 
  Westwood's 
  

   description." 
  

  

  Mr. 
  Oswell, 
  who 
  was 
  present 
  as 
  a 
  visitor, 
  gave 
  a 
  detailed 
  and 
  very 
  interesting 
  ac- 
  

   count 
  of 
  his 
  experience 
  with 
  this 
  African 
  pest, 
  the 
  facts 
  of 
  which 
  are 
  embodied 
  in 
  the 
  

   foregoing 
  communication. 
  He 
  mentioned 
  however 
  that 
  the 
  fly 
  makes 
  a 
  droning 
  hum, 
  

   and 
  is 
  so 
  pertinacious 
  in 
  its 
  attacks 
  thai 
  it 
  is 
  impossible 
  to 
  drive 
  it 
  away. 
  

  

  Mr. 
  Spence 
  also 
  called 
  attention 
  to 
  the 
  discovery 
  in 
  the 
  caves 
  of 
  Illyria, 
  of 
  two 
  

   more 
  species 
  of 
  blind 
  beetles, 
  a 
  printed 
  account 
  of 
  which, 
  by 
  Herr 
  Schmidt, 
  had 
  been 
  

   sent 
  to 
  him 
  by 
  the 
  author, 
  extracted 
  from 
  the 
  'Laibacher 
  Zeitung,' 
  August 
  4, 
  1852. 
  

   These 
  insects 
  were 
  both 
  found 
  in 
  the 
  darkest 
  parts 
  of 
  the 
  caves, 
  and 
  retreated 
  quickly 
  

   from 
  the 
  light 
  into 
  clefts 
  of 
  the 
  rock. 
  

  

  " 
  Leptoderus 
  angustatus. 
  Ked-brown 
  ; 
  head 
  and 
  thorax 
  darker, 
  shining, 
  the 
  lat- 
  

   ter 
  swelled 
  out 
  in 
  front, 
  and 
  hindwardly 
  much 
  contracted 
  ; 
  elytra 
  oval, 
  viewed 
  with 
  

   a 
  lens 
  they 
  are 
  scarred 
  and 
  marked 
  with 
  fine 
  points 
  ; 
  palpi, 
  antennae 
  and 
  feet 
  some- 
  

   what 
  lighter 
  brown, 
  beset 
  with 
  strong, 
  yellowish 
  hairs. 
  The 
  female 
  has 
  in 
  the 
  tarsi 
  

   of 
  the 
  fore-feet 
  only 
  four 
  joints, 
  but 
  five 
  in 
  all 
  the 
  others 
  ; 
  whereas 
  the 
  male 
  has 
  five 
  

   joints 
  in 
  the 
  fore- 
  feet 
  also, 
  of 
  which 
  the 
  first, 
  second, 
  aud 
  third, 
  are 
  enlarged 
  from 
  the 
  

   base 
  outwards, 
  especially 
  the 
  first, 
  which 
  exceeds 
  the 
  next 
  two 
  both 
  in 
  length 
  and 
  

   width. 
  

  

  " 
  Leptoderus 
  sericeus. 
  Brown 
  ; 
  head 
  and 
  thorax 
  slightly 
  darker, 
  face 
  with 
  fine 
  

   yellow 
  hairs 
  ; 
  thorax 
  nearly 
  even 
  with 
  the 
  head, 
  cylindric, 
  long, 
  broad, 
  and 
  widened 
  a 
  

   little 
  in 
  front 
  : 
  palpi 
  and 
  antennae 
  much 
  lighter, 
  the 
  latter, 
  particularly 
  in 
  the 
  male, 
  

   very 
  long-jointed, 
  and 
  from 
  the 
  sixth 
  joint 
  with 
  yellow 
  hairs 
  ; 
  the 
  tarsi 
  in 
  the 
  male 
  

   are 
  five-jointed 
  as 
  in 
  the 
  preceding 
  species, 
  but 
  the 
  joints 
  are 
  of 
  equal 
  thickness. 
  The 
  

   body 
  is 
  2 
  lines 
  long, 
  and 
  scarcely 
  1 
  line 
  broad, 
  and 
  is 
  of 
  the 
  form 
  of 
  L. 
  angustatus. 
  

   The 
  elytra 
  are 
  marked 
  with 
  fine, 
  round 
  depressions, 
  and 
  covered 
  with 
  shiuing 
  yellow 
  

   hairs. 
  Both 
  sexes 
  are 
  much 
  alike 
  in 
  colour, 
  but 
  in 
  the 
  female 
  the 
  joints 
  of 
  the 
  an- 
  

   tennae 
  are 
  rather 
  shorter, 
  and 
  the 
  joints 
  of 
  the 
  fore-tarsi 
  are 
  only 
  four." 
  

  

  Mr. 
  Spence 
  remarked, 
  that 
  though 
  these 
  beetles 
  lived 
  in 
  the 
  darkest 
  caves, 
  and 
  

   were 
  described 
  to 
  be 
  eyeless 
  (augenlos) 
  yet 
  their 
  running 
  away 
  from 
  light 
  seemed 
  to 
  

   show 
  they 
  were 
  not 
  destitute 
  of 
  an 
  optic 
  nerve. 
  

  

  Read, 
  the 
  following 
  extracts 
  of 
  a 
  letter 
  addressed 
  to 
  the 
  Secretary 
  by 
  the 
  Rev. 
  

   Joseph 
  Greene 
  of 
  Halton 
  Rectory, 
  near 
  Wendover, 
  dated 
  December 
  8, 
  1852. 
  

  

  " 
  In 
  reference 
  to 
  the 
  question 
  of 
  ' 
  whether 
  the 
  earth 
  in 
  caterpillar-boxes 
  should 
  be 
  

   moist 
  or 
  dry 
  ?' 
  there 
  are 
  two 
  points 
  in 
  favour 
  of 
  the 
  latter, 
  which 
  I 
  omitted 
  to 
  mention 
  

   last 
  night. 
  Should 
  the 
  earth 
  be 
  in 
  any 
  degree 
  of 
  a 
  clayey 
  consistency, 
  the 
  moistening 
  

   tends 
  to 
  make 
  it 
  so 
  close, 
  as 
  to 
  render 
  it 
  nearly 
  impossible 
  for 
  the 
  weaker 
  larvae 
  to 
  pene- 
  

   trate 
  it, 
  as 
  I 
  have 
  found 
  to 
  be 
  the 
  case 
  more 
  than 
  once. 
  Again, 
  if 
  the 
  earth 
  be 
  moist- 
  

   ened, 
  it 
  often 
  happens, 
  that 
  after 
  drying, 
  it 
  becomes 
  so 
  hard 
  as 
  to 
  prevent 
  the 
  pupa 
  

   from 
  bursting, 
  and 
  permitting 
  the 
  escape 
  of 
  the 
  insect. 
  I 
  have 
  repeatedly 
  found 
  this 
  

   to 
  be 
  the 
  case 
  in 
  digging 
  for 
  pupae. 
  And 
  once 
  1 
  found 
  even 
  so 
  large 
  and 
  strong 
  an 
  

  

  P 
  

  

  