﻿160 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol.98 
  

  

  simple 
  and 
  acuminate 
  whereas 
  those 
  of 
  the 
  female 
  are 
  truncate. 
  The 
  

   structure 
  of 
  the 
  clypeus 
  likewise 
  differs 
  in 
  the 
  sexes. 
  

  

  Genus 
  LESTICA 
  Billberg 
  

  

  LESTICA 
  DASYMERUS,' 
  new 
  species 
  

  

  Figure 
  16, 
  e, 
  f, 
  h, 
  k, 
  o 
  

  

  The 
  peculiar 
  conformation 
  of 
  the 
  legs, 
  particularly 
  the 
  fore 
  and 
  

   middle 
  pair, 
  readily 
  diiferentiates 
  da-'iymerus 
  from 
  all 
  other 
  species 
  

   of 
  the 
  Ceratocolus 
  section 
  of 
  the 
  nominate 
  subgenus 
  of 
  Lestica. 
  

  

  Type. 
  — 
  Male; 
  Oloke-Meji 
  to 
  Ibaden, 
  Lagos. 
  Southern 
  Nigeria. 
  (J. 
  

   C. 
  Bridwell 
  ; 
  U. 
  S. 
  N. 
  M. 
  No. 
  58035. 
  ) 
  

  

  Male. 
  — 
  Length 
  7 
  mm. 
  Black; 
  the 
  following 
  badeous 
  : 
  Mandibles 
  save 
  

   for 
  red 
  apices; 
  pedicel 
  ; 
  flagellar 
  segments 
  beneath 
  ; 
  all 
  trochanters 
  and 
  

   tarsi 
  ; 
  fore 
  tibiae 
  with 
  a 
  line 
  along 
  posterior 
  margins 
  ; 
  middle 
  femora 
  

   and 
  tibiae 
  on 
  inner 
  faces; 
  apical 
  abdominal 
  sternites. 
  Citrinous: 
  

   Antennal 
  scapes 
  anteriorly; 
  pronotum 
  with 
  a 
  transverse 
  stripe 
  broadly 
  

   interrupted 
  medially 
  ; 
  pronotal 
  tubercles 
  ; 
  scutellum 
  ; 
  first 
  four 
  abdomi- 
  

   nal 
  tergites 
  with 
  a 
  small 
  spot 
  laterally 
  on 
  each 
  side; 
  fore 
  femora 
  and 
  

   tibiae; 
  middle 
  femora 
  with 
  a 
  broad 
  stripe 
  lengthwise 
  above 
  and 
  below; 
  

   middle 
  tibiae 
  on 
  outer 
  faces. 
  Wings 
  tinged 
  with 
  fuscous; 
  veins 
  and 
  

   stigma 
  very 
  dark 
  brunneous. 
  

  

  Head 
  opaque 
  ; 
  subtrapezif 
  orm 
  in 
  anterior 
  aspect, 
  subquadrate 
  in 
  

   dorsal 
  aspect 
  ; 
  clypeus, 
  and 
  a 
  narrow 
  stripe 
  along 
  inner 
  orbits, 
  silvery 
  

   pubescent; 
  lower 
  temples 
  with 
  a 
  sparse 
  vestiture 
  of 
  silvery 
  puberulent 
  

   hair. 
  Front 
  with 
  scapal 
  area 
  deeply 
  concave, 
  finely 
  microscopically 
  

   punctulate 
  ; 
  upper 
  front 
  and 
  vertex 
  with 
  large, 
  coarse, 
  irregular, 
  close, 
  

   variolate 
  pits 
  and 
  punctures; 
  supraorbital 
  foveae 
  distinct, 
  elongate, 
  

   linear, 
  cicatrose; 
  ocelli 
  arranged 
  in 
  a 
  subequilateral 
  triangle, 
  the 
  

   ocellocular 
  line 
  four-fifths 
  the 
  postocellar 
  distance; 
  occipital 
  carina 
  

   very 
  well 
  developed, 
  strongly 
  flanged, 
  shallowly 
  but 
  distinctly 
  foveo- 
  

   late 
  anteriorly, 
  attaining 
  the 
  posterior 
  angles 
  of 
  the 
  oral 
  fossa, 
  the 
  

   hypostomal 
  carinule 
  obtusely 
  lobed 
  along 
  posterior 
  margin. 
  Temples 
  

   variolately 
  pitted 
  above, 
  finely 
  punctulate 
  below. 
  Antennae 
  with 
  

   scapes 
  about 
  one-half 
  (0.52) 
  the 
  vertical 
  eye 
  length, 
  obterete, 
  ecarinate 
  

   lengthwise; 
  pedicel 
  suborcate, 
  two-fifths 
  the 
  length 
  of 
  first 
  flagellar 
  

   article; 
  flagellum 
  slender, 
  elongate, 
  with 
  an 
  inconspicuous 
  fringe 
  of 
  

   short 
  silver}' 
  hairs 
  beneath 
  along 
  the 
  tyloides, 
  second 
  segment 
  nine- 
  

   tenths 
  length 
  of 
  first 
  article, 
  penult 
  segment 
  two-thirds 
  length 
  of 
  

   last 
  article. 
  Clypeus 
  (fig. 
  16, 
  h) 
  with 
  median 
  length 
  one-third 
  the 
  

   vertical 
  eye 
  length; 
  flatly 
  tectate; 
  bisected 
  by 
  a 
  distinct 
  keel 
  which 
  

   terminates 
  in 
  a 
  small 
  deflexed, 
  polite, 
  glabrous 
  bevel 
  at 
  the 
  apex 
  of 
  the 
  

   produced 
  median 
  lobe. 
  Mandibles 
  strongly 
  incurved 
  apically 
  ; 
  apices 
  

   evenly 
  bidentate 
  ; 
  inner 
  margins 
  with 
  a 
  low 
  obtuse 
  tooth. 
  

  

  ' 
  «o<t6j, 
  shagpy 
  hair+/jt;p65, 
  thigh; 
  in 
  allusion 
  to 
  the 
  band 
  of 
  long 
  shaggy 
  hair 
  on 
  the 
  fore 
  femora. 
  

  

  