﻿\ 
  

  

  220 
  PEOF. 
  M. 
  BEZZI. 
  

  

  Celidodacus, 
  Hendel, 
  1914. 
  

  

  Prof. 
  Hendel 
  has 
  differentiated 
  the 
  present 
  genus 
  from 
  Conradtina 
  only 
  on 
  account 
  

   of 
  the 
  wing 
  pattern 
  ; 
  the 
  chaetotaxy 
  of 
  the 
  head 
  and 
  thorax 
  seems 
  to 
  be 
  the 
  same 
  

   in 
  both 
  genera 
  ; 
  but 
  I 
  think 
  that 
  the 
  form 
  of 
  the 
  wings 
  and 
  the 
  shape 
  of 
  the 
  second 
  

   and 
  third 
  longitudinal 
  veins 
  can 
  be 
  regarded 
  as 
  sufficient 
  for 
  generic 
  separation. 
  

  

  I 
  have 
  before 
  me 
  what 
  I 
  believe 
  to 
  be 
  the 
  genotype, 
  named 
  apicalis, 
  but 
  not 
  

   described, 
  by 
  Prof. 
  Hendel 
  ; 
  I 
  think 
  that 
  it 
  is 
  the 
  same 
  as 
  Acidia 
  obnubila 
  of 
  Karsch, 
  

   even 
  though 
  the 
  latter 
  author 
  does 
  not 
  mention 
  the 
  spines 
  on 
  the 
  underside 
  of 
  the 
  

   femora. 
  A 
  close 
  ally 
  of 
  this 
  species 
  seems 
  to 
  be 
  Acidia 
  coloniarum, 
  Speiser, 
  which 
  

   has 
  a 
  different 
  wing 
  pattern, 
  having 
  an 
  isolated 
  dark 
  band 
  across 
  the 
  small 
  cross- 
  vein. 
  

  

  I 
  will 
  give 
  here 
  a 
  characterisation 
  of 
  the 
  genus 
  Celidodacus. 
  with 
  some 
  additional 
  

   notes 
  on 
  the 
  type-species. 
  

  

  Head 
  in 
  front 
  view 
  distinctly 
  broader 
  than 
  high. 
  Occiput 
  rather 
  flat 
  above 
  and 
  

   less 
  prominent 
  below, 
  the 
  lower 
  swellings 
  being 
  not 
  developed. 
  Eyes 
  rounded, 
  

   with 
  the 
  vertical 
  diameter 
  longer 
  than 
  the 
  horizontal 
  one. 
  Frons 
  flat, 
  parallel- 
  

   sided, 
  1 
  *5 
  times 
  longer 
  than 
  broad 
  ; 
  in 
  profile 
  it 
  is 
  only 
  a 
  little 
  prominent 
  above 
  

   the 
  root 
  of 
  the 
  antennae 
  ; 
  lunula 
  very 
  small. 
  Face 
  convex 
  in 
  the 
  middle, 
  with 
  

   broad 
  antennal 
  grooves 
  ; 
  mouth-border 
  prominent 
  ; 
  cheeks 
  linear 
  ; 
  jowls 
  narrow. 
  

   Antennae 
  inserted 
  a 
  little 
  above 
  the 
  middle 
  of 
  the 
  eyes, 
  with 
  the 
  third 
  joint 
  acute 
  

   but 
  rounded 
  at 
  tip, 
  long, 
  extending 
  a 
  little 
  beyond 
  the 
  mouth-border 
  ; 
  arista 
  

   plumose, 
  the 
  breadth 
  of 
  the 
  feathering 
  being 
  equal 
  to 
  the 
  breadth 
  of 
  the 
  third 
  antennal 
  

   joint 
  towards 
  the 
  middle. 
  Proboscis 
  short 
  and 
  thick 
  ; 
  palpi 
  broad 
  and 
  bristly. 
  

   Cephalic 
  bristles 
  strongly 
  developed 
  ; 
  ocp. 
  acute 
  and 
  black 
  ; 
  two 
  vt., 
  the 
  inner 
  pair 
  

   longer 
  ; 
  pvt. 
  well 
  developed 
  ; 
  no 
  oc. 
  ; 
  two 
  s. 
  or. 
  and 
  three 
  *'. 
  or. 
  ; 
  genal 
  bristle 
  well 
  

   developed 
  ; 
  there 
  is 
  also 
  a 
  bristle 
  towards 
  the 
  middle 
  of 
  the 
  lower 
  part 
  of 
  the 
  

   occiput. 
  Thorax 
  broad 
  and 
  stout, 
  with 
  complete 
  and 
  strongly 
  developed 
  chaeto- 
  

   taxy 
  ; 
  scp. 
  long, 
  those 
  of 
  the 
  middle 
  pair 
  not 
  approximated 
  ; 
  the 
  dc. 
  pair 
  is 
  placed 
  

   much 
  behind 
  ; 
  two 
  mpl. 
  ; 
  pt. 
  strong. 
  Scutellum 
  triangular, 
  as 
  long 
  as 
  broad, 
  

   flat 
  above, 
  with 
  lateral 
  keels 
  and 
  four 
  long 
  strong 
  bristles. 
  Abdomen 
  with 
  4 
  

   segments 
  in 
  the 
  male 
  and 
  5 
  in 
  the 
  female, 
  narrowed 
  at 
  base, 
  about 
  as 
  broad 
  as 
  the 
  

   thorax 
  in 
  the 
  middle, 
  with 
  terminal 
  bristles 
  ; 
  male 
  genitalia 
  small 
  ; 
  ovipositor 
  short 
  

   and 
  broad, 
  depressed. 
  Legs 
  short 
  and 
  stout, 
  all 
  the 
  femora 
  spinose 
  beneath, 
  but 
  

   those 
  of 
  the 
  hind 
  pair 
  less 
  so 
  than 
  the 
  others 
  ; 
  middle 
  femora 
  thickened 
  ; 
  middle 
  

   tibiae 
  with 
  a 
  single 
  spur 
  at 
  the 
  end 
  ; 
  hind 
  tibiae 
  with 
  less 
  developed 
  posterior 
  row 
  

   of 
  bristles. 
  Wings 
  proportionately 
  narrow, 
  with 
  well 
  developed 
  pattern. 
  Costa 
  

   not 
  ciliated 
  and 
  without 
  bristle 
  ; 
  auxiliary 
  vein 
  stout 
  and 
  well 
  separated 
  ; 
  first 
  

   longitudinal 
  vein 
  ending 
  before 
  the 
  middle 
  of 
  the 
  costa 
  and 
  before 
  the 
  small 
  cross- 
  

   vein 
  ; 
  second 
  vein 
  a 
  little 
  sinuous 
  ; 
  third 
  bristly 
  throughout, 
  straight 
  on 
  its 
  last 
  

   portion 
  and 
  diverging 
  from 
  the 
  fourth 
  ; 
  small 
  cross- 
  vein 
  much 
  beyond 
  the 
  middle, 
  

   placed 
  on 
  the 
  last 
  third 
  of 
  the 
  discoidal 
  cell 
  ; 
  hind 
  cross-vein 
  straight 
  ; 
  sixth 
  vein 
  

   reaching 
  the 
  hind 
  border 
  ; 
  point 
  of 
  the 
  anal 
  cell 
  acute, 
  as 
  long 
  as 
  the 
  second 
  basal 
  

   cell 
  ; 
  axillary 
  lobe 
  broad 
  ; 
  alula 
  rounded. 
  

  

  Celidodacus 
  ObnubiEllS, 
  Karsch, 
  1887 
  ; 
  (apicalis, 
  Hend., 
  1914). 
  (PI. 
  xvii, 
  fig. 
  4). 
  

  

  A 
  robust 
  species, 
  at 
  once 
  distinguished 
  an 
  account 
  of 
  the 
  peculiar 
  coloration 
  

   of 
  the 
  thorax 
  and 
  wings. 
  

  

  