﻿170 
  GUY 
  A. 
  K. 
  MARSHALL. 
  

  

  5 
  (8). 
  Rostrum 
  not 
  constricted 
  at 
  the 
  base 
  ; 
  femora 
  rugosely 
  granulate 
  ; 
  tarsi 
  

  

  clothed 
  above 
  with 
  very 
  fine 
  hairs. 
  

  

  6 
  (7). 
  Funicle 
  with 
  the 
  two 
  basal 
  joints 
  subequal 
  ; 
  elytra 
  not 
  constricted 
  at 
  the 
  base, 
  

  

  the 
  lateral 
  intervals 
  entirely 
  without 
  granules. 
  . 
  . 
  . 
  costicollis, 
  sp. 
  n. 
  

  

  7 
  (6). 
  Funicle 
  with 
  joint 
  2 
  distinctly 
  longer 
  than 
  1 
  ; 
  elytra 
  constricted 
  at 
  the 
  base, 
  

  

  the 
  lateral 
  intervals 
  with 
  flattened 
  shiny 
  granules 
  . 
  . 
  pembertoni, 
  sp. 
  n. 
  

  

  8 
  (5). 
  Rostrum 
  shallowly 
  constricted 
  laterally 
  at 
  the 
  base; 
  femora 
  not 
  granulate, 
  

  

  almost 
  smooth 
  ; 
  tarsi 
  clothed 
  above 
  with 
  long 
  stout 
  flattened 
  fulvous 
  

   setae 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  squamipes, 
  sp. 
  n. 
  

  

  Syagrius 
  costicollis, 
  sp. 
  nov. 
  (Plate 
  vi, 
  fig. 
  3). 
  

  

  c?$. 
  — 
  Integument 
  dull 
  black, 
  without 
  scaling, 
  but 
  with 
  sparse 
  fulvous 
  setae. 
  

   Head 
  very 
  minutely 
  aciculate 
  on 
  the 
  vertex 
  and 
  with 
  very 
  shallow, 
  sparse 
  punctures 
  ; 
  

   the 
  forehead 
  very 
  coarsely 
  punctate, 
  with 
  two 
  low 
  median 
  elevations 
  separated 
  by 
  a 
  

   rather 
  deep 
  depression. 
  Rostrum 
  with 
  the 
  whole 
  surface 
  minutely 
  aciculate, 
  and 
  

   therefore 
  opaque 
  in 
  the 
  <J, 
  but 
  the 
  dorsal 
  area 
  more 
  shiny 
  in 
  the 
  $ 
  ; 
  coarsely 
  and 
  

   closely 
  punctate, 
  except 
  on 
  the 
  apical 
  area, 
  on 
  which 
  the 
  punctures 
  are 
  small, 
  shallow 
  

   and 
  separated 
  {£), 
  or 
  more 
  or 
  less 
  longitudinally 
  confluent 
  ($) 
  ; 
  the 
  dorsal 
  area 
  rather 
  

   indistinctly 
  tricarinate, 
  the 
  outer 
  carinae 
  uniting 
  into 
  a 
  point 
  at 
  the 
  base, 
  and 
  the 
  

   dorsal 
  outline 
  strongly 
  and 
  regularly 
  curved 
  ; 
  a 
  deep, 
  straight, 
  shallowly 
  punctate 
  

   furrow 
  on 
  each 
  side 
  above 
  the 
  scrobe. 
  Antennae 
  red-brown 
  ; 
  the 
  two 
  basal 
  joints 
  

   of 
  the 
  funicle 
  subequal, 
  the 
  remainder 
  slightly 
  transverse, 
  joint 
  7 
  more 
  distinctly 
  so 
  ; 
  

   the 
  basal 
  joint 
  of 
  the 
  club 
  shorter 
  than 
  the 
  rest 
  of 
  the 
  club. 
  Prothorax 
  a 
  little 
  broader 
  

   than 
  long, 
  strongly 
  rounded 
  at 
  the 
  sides, 
  widest 
  well 
  before 
  the 
  middle, 
  the 
  anterior 
  

   dorsal 
  margin 
  gently 
  arcuate 
  ; 
  a 
  broad, 
  smooth, 
  flat 
  median 
  costa 
  that 
  reaches 
  neither 
  

   base 
  nor 
  apex, 
  the 
  remainder 
  of 
  the 
  surface 
  coarsely 
  and 
  confidently 
  punctate, 
  and 
  

   the 
  ridges 
  between 
  the 
  punctures 
  subtuberculate, 
  there 
  being 
  two 
  median 
  tubercles 
  

   higher 
  than 
  the 
  rest, 
  one 
  on 
  each 
  side 
  of 
  the 
  costa 
  ; 
  the 
  apices 
  of 
  most 
  of 
  the 
  tubercles 
  

   shiny, 
  the 
  rest 
  of 
  the 
  surface 
  opaque 
  ; 
  a 
  few 
  sparse, 
  short, 
  recumbent 
  setae, 
  these 
  being 
  

   denser 
  along 
  the 
  basal 
  margin. 
  Elytra 
  suboblong, 
  the 
  sides 
  not 
  narrowed 
  or 
  constricted 
  

   at 
  the 
  base 
  ; 
  the 
  rows 
  of 
  punctures 
  shallow 
  and 
  rather 
  irregular 
  on 
  the 
  disk, 
  much 
  

   deeper 
  and 
  quite 
  regular 
  laterally 
  ; 
  interval 
  1 
  bearing 
  a 
  few, 
  irregularly 
  spaced, 
  

   minute 
  granules 
  along 
  the 
  suture 
  ; 
  interval 
  2 
  narrow 
  and 
  very 
  indefinite, 
  with 
  still 
  

   fewer 
  and 
  variable 
  granules 
  ; 
  interval 
  3 
  with 
  a 
  large 
  elongate 
  basal 
  tubercle 
  set 
  with 
  

   shiny 
  granules, 
  a 
  few 
  granules 
  at 
  the 
  middle, 
  a 
  slightly 
  raised 
  cluster 
  of 
  granules 
  

   just 
  behind 
  these, 
  a 
  large 
  rounded 
  granular 
  tubercle 
  at 
  the 
  top 
  of 
  the 
  declivity 
  rather 
  

   densely 
  clothed 
  with 
  fulvous 
  setae, 
  and 
  an 
  elongate 
  granular 
  tubercle 
  on 
  the 
  declivity 
  ; 
  

   interval 
  4 
  almost 
  without 
  granules 
  ; 
  interval 
  5 
  with 
  irregular 
  clusters 
  of 
  granules 
  

   throughout, 
  the 
  one 
  at 
  the 
  top 
  of 
  the 
  declivity 
  tuberculate 
  and 
  elongate 
  ; 
  interval 
  6 
  

   almost 
  smooth 
  ; 
  interval 
  7 
  with 
  a 
  row 
  of 
  indistinct 
  granules 
  and 
  a 
  small 
  tubercle 
  at 
  

   its 
  apex 
  ; 
  the 
  lateral 
  intervals 
  devoid 
  of 
  granules. 
  Legs 
  rugosely 
  granulate 
  ; 
  the 
  

   femora 
  with 
  an 
  indefinite 
  ring 
  of 
  pale 
  setae 
  at 
  one-third 
  from 
  the 
  apex 
  ; 
  the 
  tarsi 
  

   red-brown. 
  

  

  Length, 
  3-4-5 
  mm. 
  ; 
  breadth, 
  1-25-1-85 
  mm. 
  

  

  New 
  South 
  Wales 
  : 
  Nimbin, 
  near 
  head 
  waters 
  of 
  Richmond 
  River, 
  iv.1921 
  

   (Pemberton). 
  

  

  Described 
  from 
  28 
  specimens. 
  

  

  Readily 
  distinguished 
  from 
  both 
  the 
  previously 
  described 
  species 
  of 
  Syagrius 
  by 
  

   the 
  form 
  of 
  the 
  basal 
  tubercle 
  on 
  interval 
  3 
  of 
  the 
  elytra, 
  which 
  is 
  elongate 
  and 
  extends 
  

   right 
  up 
  to 
  the 
  base 
  so 
  that 
  its 
  upper 
  surface 
  continues 
  the 
  level 
  of 
  the 
  dorsal 
  outline 
  

   (c/. 
  Plate 
  vi, 
  fig. 
  4, 
  a) 
  ; 
  whereas 
  in 
  the 
  other 
  two 
  species 
  this 
  tubercle 
  is 
  rounded 
  and 
  

   placed 
  at 
  an 
  appreciable 
  distance 
  from 
  the 
  base 
  (Plate 
  vi, 
  fig. 
  6, 
  a). 
  It 
  is 
  further 
  

   distinguished 
  from 
  all 
  the 
  species 
  here 
  dealt 
  with 
  by 
  the 
  fact 
  that 
  the 
  elytra 
  are 
  not 
  

   narrowed 
  or 
  constricted 
  at 
  the 
  base. 
  

  

  