﻿540 
  

  

  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  

  

  Front 
  more 
  or 
  less 
  flattened. 
  Pronotum 
  from 
  one-fourth 
  to 
  one-third 
  

   wider 
  than 
  long, 
  widest 
  at 
  basal 
  two-fifths; 
  from 
  one-fourth 
  to 
  two- 
  

   thirds 
  wider 
  at 
  base 
  than 
  at 
  apex; 
  disk 
  very 
  coarsely 
  punctate, 
  suf- 
  

   ficiently 
  so 
  as 
  to 
  be 
  rugose, 
  median 
  impression 
  subobsolete; 
  sides 
  

   tuberculate, 
  abruptly 
  constricted 
  just 
  before 
  the 
  base, 
  thence 
  dilated 
  

  

  \ 
  

  

  Figure 
  73. 
  — 
  Tosastes 
  coarctatus 
  Champion: 
  a. 
  Female 
  genital 
  tube, 
  dorsal 
  view; 
  b, 
  female 
  

   genital 
  tube, 
  ventral 
  view; 
  c, 
  female 
  genital 
  tube, 
  lateral 
  view; 
  d, 
  eighth 
  sternite 
  of 
  female; 
  

   e, 
  receptaculum 
  seminis;/, 
  median 
  lobe 
  of 
  male 
  genitalia, 
  dorsal 
  view; 
  g, 
  median 
  lobe 
  of 
  

   male 
  genitalia, 
  lateral 
  view. 
  

  

  into 
  a 
  coarse, 
  obtuse 
  tooth 
  on 
  each 
  side; 
  apical 
  margin 
  slightly 
  ad- 
  

   vanced, 
  evenly 
  arcuate, 
  basal 
  margin 
  slightly 
  retracted. 
  Elytra 
  

   widest 
  at 
  or 
  slightly 
  before 
  the 
  middle, 
  oval, 
  with 
  prominent 
  dentate 
  

   humeri; 
  striae 
  not 
  very 
  sharply 
  impressed, 
  the 
  punctures 
  large, 
  shal- 
  

   low; 
  intervals 
  subequal 
  and 
  nearly 
  flat. 
  Legs 
  moderately 
  stout; 
  

   posterior 
  tibiae 
  rounded 
  and 
  with 
  a 
  single 
  row 
  of 
  spines 
  at 
  apex; 
  an- 
  

   terior 
  tarsi 
  of 
  male 
  with 
  the 
  third 
  joint 
  wider 
  than 
  the 
  second, 
  and, 
  

   in 
  some 
  specimens, 
  with 
  a 
  tiny 
  patch 
  of 
  what 
  appears 
  to 
  be 
  adhesive 
  

   pubescence 
  upon 
  the 
  bottom 
  of 
  each 
  lobe. 
  

  

  