﻿100 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  AIUSEUM 
  vol. 
  los 
  

  

  Bolbelasmus 
  minor 
  (Linell), 
  new 
  combination 
  

  

  Figure 
  14, 
  n 
  

  

  Bradycinetus 
  minor 
  Linell, 
  Proc. 
  U. 
  S. 
  Nat. 
  Mus., 
  vol. 
  18, 
  p. 
  723, 
  1895. 
  

   Bolboceras 
  minor 
  Schaeffer, 
  Trans. 
  Amer. 
  Ent. 
  Soc, 
  vol. 
  32, 
  p. 
  253, 
  1906. 
  

   Kolbeus 
  minor 
  Chapin, 
  Proc. 
  Biol. 
  Soc. 
  Washington, 
  vol. 
  59, 
  p. 
  79, 
  1946. 
  

  

  Bolbelasmus 
  minor 
  (Linell) 
  almost 
  exactly 
  duplicates 
  B. 
  arcuatus 
  

   (Bates) 
  except 
  that 
  it 
  averages 
  slightly 
  larger, 
  the 
  punctures 
  are 
  

   coarser 
  throughout, 
  and 
  the 
  pronotum 
  is 
  completely 
  and 
  distinctly 
  

   margined 
  basally. 
  It 
  is 
  a 
  small, 
  dark 
  red-bro-wn, 
  shming 
  species, 
  

   7 
  to 
  10 
  mm. 
  in 
  length; 
  the 
  labrum 
  is 
  widely, 
  shallowly 
  emarginate 
  in 
  

   front; 
  the 
  clypeus 
  is 
  almost 
  evenly 
  arcuate 
  from 
  side 
  to 
  side; 
  the 
  

   clypeal 
  suture 
  is 
  distinct; 
  the 
  anterior 
  angles 
  of 
  the 
  pronotum 
  are 
  

   sharply 
  right 
  angled; 
  the 
  scutellum 
  is 
  elongate; 
  the 
  strial 
  punctures 
  

   are 
  very 
  coarse, 
  those 
  at 
  the 
  apex 
  of 
  the 
  elytra 
  being 
  tubular 
  and 
  

   so 
  deep 
  as 
  to 
  nearly 
  perforate 
  the 
  elytra 
  ; 
  near 
  the 
  margin 
  of 
  the 
  elytra 
  

   is 
  a 
  row 
  of 
  widely 
  spaced, 
  long, 
  bristlelike 
  hairs; 
  the 
  male 
  has 
  the 
  

   head 
  and 
  clypeus 
  similarly 
  densely 
  punctate, 
  the 
  head 
  bears 
  a 
  median, 
  

   conical 
  horn, 
  and 
  the 
  pronotum 
  has 
  a 
  low, 
  wide, 
  median 
  prominence 
  

   with 
  anterior, 
  shallow 
  depressions 
  each 
  side; 
  the 
  female 
  has 
  a 
  wide, 
  

   transverse, 
  tri-tuberculate 
  carina 
  on 
  the 
  head 
  and 
  a 
  simple, 
  fine, 
  

   transverse 
  caruia 
  on 
  the 
  pronotum. 
  

  

  Type.— 
  Rolotyipe 
  female, 
  USNM 
  562. 
  

  

  Type 
  locality. 
  — 
  San 
  Diego, 
  Tex. 
  

  

  Specimens 
  examined. 
  — 
  2 
  1 
  . 
  

  

  Distribution. 
  — 
  Texas: 
  Hidalgo 
  County, 
  Weslaco, 
  Brownsville, 
  Kings- 
  

   ville, 
  and 
  San 
  Diego. 
  

  

  Season. 
  — 
  May 
  16 
  to 
  June 
  16. 
  

  

  BolbelasTnus 
  hornii 
  (Rivers), 
  new 
  combination 
  

  

  Figure 
  14, 
  m 
  

  

  Bradycinetus 
  hornii 
  Rivers, 
  Bull. 
  California 
  Acad. 
  Sci., 
  vol. 
  2, 
  p. 
  61, 
  1886. 
  

   Bolboceras 
  hornii 
  Schaeffer, 
  Trans. 
  Amer. 
  Ent. 
  Soc, 
  vol. 
  32, 
  p. 
  253, 
  1906. 
  

   Bradycineiulus 
  hornii 
  Cockerell, 
  Ent. 
  News, 
  vol. 
  17, 
  p. 
  242, 
  1906. 
  

   Kolbeus 
  hornii 
  Chapin, 
  Proc. 
  Biol. 
  Soc. 
  Washington, 
  vol. 
  59, 
  p. 
  79, 
  1946. 
  

  

  Bolbelasmus 
  hornii 
  (Rivers) 
  is 
  quite 
  similar 
  to 
  B. 
  minor 
  (Linell) 
  but 
  

   is 
  considerably 
  larger, 
  lighter 
  in 
  color, 
  and 
  has 
  much 
  finer 
  strial 
  

   punctures. 
  The 
  scutellum 
  is 
  not 
  so 
  elongate, 
  being 
  nearly 
  an 
  equi- 
  

   lateral 
  triangle 
  with 
  arcuate 
  sides. 
  Other 
  characters 
  given 
  in 
  the 
  

   key 
  should 
  readily 
  identify 
  this 
  species. 
  

  

  Type. 
  — 
  Location 
  of 
  type 
  unknown 
  to 
  me. 
  (According 
  to 
  Dr. 
  

   VanDyke 
  the 
  entire 
  Rivers 
  Collection 
  was 
  purchased 
  by 
  Dr. 
  Walther 
  

   Horn 
  and 
  it 
  is 
  presumably 
  in 
  the 
  Berlin-Dahlem 
  collection.) 
  

  

  Type 
  locality. 
  — 
  "Sonora, 
  Tuolumne 
  Co., 
  Cal. 
  Found 
  also 
  in 
  

   Sacramento 
  Co." 
  

  

  