﻿20 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol. 
  07 
  

  

  posteriorly, 
  just 
  visibly 
  sinuate 
  before 
  the 
  obtuse 
  but 
  distinct 
  poste- 
  

   rior 
  angles; 
  anterior 
  angles 
  very 
  minutely 
  denticulate; 
  side 
  margins 
  

   very 
  slightly 
  wider 
  posteriorly, 
  basal 
  impressions 
  feeble; 
  apex 
  not 
  

   margined; 
  base 
  distinctly 
  margined. 
  Elytra 
  slightly 
  narrower, 
  

   scarcely 
  shorter 
  than 
  the 
  thorax, 
  as 
  wide 
  as 
  long; 
  suture 
  scarcely 
  

   impressed. 
  Prosternal 
  tuberculation 
  more 
  broadly 
  rounded 
  at 
  apex. 
  

   Length 
  4.75 
  mm., 
  width 
  1 
  mm. 
  

  

  Type 
  locality.— 
  Santo 
  Domingo, 
  W. 
  I. 
  7-8 
  (Aug- 
  Busck). 
  

  

  Type— 
  Cat/ 
  No. 
  26346, 
  U.S.N.M. 
  

  

  Paratype. 
  — 
  San 
  Antonio 
  de 
  los 
  Banos, 
  Cuba. 
  (Jose 
  H. 
  Pazos, 
  

   collector.) 
  

  

  OSORIUS 
  CONFUSUS, 
  new 
  species 
  

  

  Form 
  somewhat 
  broad; 
  color 
  black, 
  outer 
  antennal 
  joints, 
  palpi 
  

   and 
  tarsi 
  piceous. 
  Head 
  rather 
  feebly 
  alutaceous 
  anteriorly 
  ; 
  thorax 
  

   distinctly 
  alutaceous 
  except 
  medially 
  at 
  the 
  base; 
  elytra 
  distinctly 
  

   but 
  irregularly 
  longitudinally 
  rugose; 
  the 
  basal 
  dorsal 
  abdominal 
  

   segment 
  strongly 
  alutaceous, 
  the 
  remaining 
  smooth, 
  shining 
  and 
  sub- 
  

   impunctate, 
  ventral 
  segments 
  alutaceous 
  with 
  a 
  few 
  coarse 
  punctures 
  

   along 
  the 
  apical 
  margin 
  back 
  to 
  the 
  middle; 
  the 
  apical 
  segment 
  

   rather 
  feebly 
  strigose-punctate 
  laterally. 
  Head 
  coarsely 
  and 
  rather 
  

   closely 
  punctate, 
  vertex 
  smooth, 
  strongly 
  shining; 
  thorax 
  coarsely 
  

   but 
  less 
  closely 
  punctate 
  than 
  the 
  head. 
  Elytra 
  finely, 
  sparsely 
  and 
  

   indistinctly 
  punctate. 
  Head 
  as 
  wide 
  as 
  the 
  thorax 
  at 
  apex; 
  ciypeus 
  

   bisinuaie, 
  angles 
  bluntly 
  prominent 
  and 
  denticulate 
  internally, 
  mid- 
  

   dle 
  lobe 
  less 
  prominent 
  and 
  more 
  broadly 
  rounded; 
  antennae 
  short, 
  

   not 
  reaching 
  the 
  middle 
  of 
  the 
  thorax 
  ; 
  outer 
  joints 
  not 
  larger, 
  moni- 
  

   liform; 
  second 
  and 
  third 
  slightly 
  elongate, 
  subequal 
  in 
  length 
  and 
  

   thickness, 
  not 
  stouter 
  than 
  the 
  fourth; 
  first 
  joint 
  as 
  long 
  as 
  the 
  next 
  

   five. 
  Thorax 
  one-third 
  wider 
  than 
  long; 
  base 
  narrower 
  than 
  the 
  

   apex; 
  sides 
  feebly 
  convergent 
  and 
  nearly 
  straight 
  to 
  behind 
  the 
  

   middle; 
  thence 
  somewhat 
  abruptly 
  more 
  convergent 
  and 
  broadly 
  

   sinuate 
  to 
  the 
  posterior 
  angles 
  which 
  are 
  obtuse 
  but 
  distinct 
  and 
  

   narrowly 
  rounded; 
  side 
  margins 
  distinctly 
  wider 
  posteriorly, 
  basal 
  

   impressions 
  broad 
  and 
  rather 
  feeble, 
  apex 
  unmargined, 
  base 
  dis- 
  

   tinctly 
  margined; 
  canaliculation 
  one-half 
  the 
  length 
  of 
  the 
  thorax, 
  

   strong 
  and 
  rather 
  deeply 
  impressed. 
  Elytra 
  scarcely 
  wider 
  than 
  

   the 
  thorax, 
  slightly 
  wider 
  than 
  long, 
  slightly 
  longer 
  than 
  the 
  thorax; 
  

   suture 
  strongly 
  impressed. 
  Prosternal 
  tuberculation 
  broad, 
  emargi- 
  

   nate 
  at 
  apex. 
  Length 
  10 
  mm., 
  width 
  2.25 
  mm. 
  

  

  Type 
  locality. 
  — 
  Omealca, 
  Vera 
  Cruz, 
  Mexico, 
  April 
  16, 
  '08 
  

   (Fred. 
  Knab). 
  

  

  Type.— 
  Cat. 
  No. 
  26347, 
  U.S.N.M. 
  

  

  