﻿akt. 
  11 
  REVIEW 
  OF 
  OSORIINI 
  BEETLES 
  NOTMAN 
  17 
  

  

  OSORIUS 
  VARIOLATUS, 
  new 
  species 
  

  

  Form 
  slightly 
  slender; 
  color 
  black, 
  antennae 
  and 
  legs 
  piceous. 
  

   Integuments 
  above 
  scarcely 
  at 
  all 
  alutaceous, 
  strongly 
  shining. 
  

   Head 
  coarsely 
  and 
  rather 
  closely 
  punctate 
  with 
  a 
  rather 
  broad 
  

   median 
  impunctate 
  stripe, 
  vertex 
  impunctate; 
  thorax 
  coarsely 
  and 
  

   rather 
  sparsely 
  punctate, 
  punctures 
  elongate, 
  median 
  impunctate 
  

   stripe 
  bounded 
  by 
  seriate 
  punctures; 
  elytra 
  coarsely, 
  rather 
  closely 
  

   and 
  subseriately 
  punctate, 
  coarsely 
  and 
  vaguely 
  rugose; 
  abdomen 
  

   rather 
  coarsely 
  and 
  moderately 
  densely 
  punctate 
  dorsally 
  with 
  a 
  

   definite 
  median 
  impunctate 
  stripe, 
  punctures 
  on 
  the 
  fifth 
  segment 
  

   larger 
  and 
  variolate, 
  apical 
  ventral 
  segment 
  coarsely 
  and 
  somewhat 
  

   sparsely 
  punctate, 
  but 
  not 
  at 
  all 
  rugose. 
  Head 
  slightly 
  narrower 
  

   than 
  the 
  thorax 
  at 
  apex 
  ; 
  clypeus 
  truncate, 
  angles 
  somewhat 
  promi- 
  

   nent 
  ; 
  antennae 
  extending 
  to 
  the 
  middle 
  of 
  the 
  thorax, 
  joints 
  seven 
  to 
  

   eleven 
  distinctly 
  larger; 
  eight 
  to 
  ten 
  slightly 
  transverse; 
  joints 
  two 
  

   and 
  three 
  slightly 
  elongate, 
  subequal; 
  second 
  stouter; 
  first 
  joint 
  as 
  

   long 
  as 
  the 
  next 
  three. 
  Thorax 
  as 
  long 
  as 
  broad, 
  scarcely 
  wider 
  

   than 
  the 
  elytra 
  ; 
  sides 
  nearly 
  straight 
  and 
  rather 
  strongly 
  narrowed 
  

   to 
  the 
  basal 
  angles, 
  which 
  are 
  broadly 
  rounded 
  and 
  not 
  distinct, 
  

   anterior 
  angles 
  narrowly 
  rounded, 
  not 
  at 
  all 
  prominent 
  ; 
  sides 
  margin 
  

   narrow 
  throughout, 
  apex 
  indistinctly 
  margined, 
  base 
  rather 
  distinctly 
  

   margined. 
  Elytra 
  as 
  long 
  as 
  the 
  thorax; 
  suture 
  absolutely 
  unim- 
  

   pressed. 
  Prosternal 
  tuberculation 
  strong, 
  rounded 
  at 
  apex. 
  Length 
  

   4.75-5.5 
  mm., 
  width 
  1-7.25 
  mm. 
  

  

  Type 
  locality. 
  — 
  Type 
  and 
  4 
  paratypes, 
  Tucson, 
  Ariz., 
  1, 
  VIII-19 
  

   (G. 
  Hofer.) 
  ; 
  3 
  paratypes, 
  Tucson, 
  Ariz., 
  (E. 
  D. 
  Edmonston). 
  

  

  Type.— 
  Cat. 
  No. 
  26338, 
  U.S.N.M., 
  1 
  paratype, 
  Tucson, 
  Ariz., 
  1, 
  

   VIII-19 
  (G. 
  Hofer) 
  in 
  the 
  writer's 
  collection. 
  

  

  OSORIUS 
  DIFFICILIS, 
  new 
  species 
  

  

  Form 
  scarcely 
  slender 
  ; 
  color 
  black, 
  attennae, 
  legs 
  and 
  elytral 
  suture 
  

   paler, 
  piceous. 
  Head 
  rather 
  feebly 
  alutaceous 
  anteriorly, 
  strongly 
  

   shining; 
  thorax 
  scarcely 
  at 
  all 
  alutaceous; 
  elytra 
  shining, 
  scarcely 
  

   rugose. 
  Head 
  somewhat 
  coarsely 
  and 
  closely 
  punctate 
  with 
  a 
  rather 
  

   broad 
  median 
  impunctate 
  stripe, 
  vertex 
  very 
  smooth 
  and 
  shining; 
  

   thorax 
  rather 
  coarsely 
  and 
  somewhat 
  sparsely 
  punctate; 
  punctures 
  

   elongate, 
  median 
  impunctate 
  stripe 
  bounded 
  either 
  side 
  by 
  seriate 
  

   punctures 
  which 
  are 
  somewhat 
  impressed 
  ; 
  elytra 
  rather 
  sparsely, 
  in- 
  

   distinctly 
  and 
  irregularly 
  punctate; 
  abdomen 
  rather 
  coarsely 
  and 
  

   closely 
  punctate 
  dorsally 
  with 
  a 
  definite 
  median 
  impunctate 
  stripe, 
  

   apical 
  ventral 
  segment 
  moderately 
  punctate 
  but 
  not 
  at 
  all 
  rugose. 
  

   Head 
  as 
  wide 
  as 
  the 
  thorax 
  at 
  apex; 
  clypeus 
  broadly 
  emarginate, 
  

   angles 
  not 
  prominent; 
  antennae 
  long, 
  extending 
  beyond 
  the 
  middle 
  

   of 
  the 
  thorax; 
  joints 
  seventh 
  to 
  eleventh 
  distinctly 
  larger; 
  joints 
  

  

  