﻿110 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol. 
  103 
  

  

  carinae 
  closely, 
  finely 
  punctate; 
  smoother 
  and 
  more 
  finely 
  punctate 
  

   across 
  base 
  at 
  middle; 
  groups 
  of 
  moderate 
  punctures 
  in 
  the 
  depressions 
  

   back 
  of 
  the 
  carinae 
  and 
  an 
  irregular 
  row 
  of 
  close 
  moderate 
  punctures 
  

   just 
  inside 
  the 
  basal 
  bead. 
  

  

  Scutellum 
  closely, 
  minutely 
  punctate. 
  Elytra 
  one-sixth 
  wider 
  than 
  

   long; 
  extremely, 
  finely 
  alutaceous 
  under 
  moderate 
  magnification; 
  

   striae 
  scarcely 
  impressed; 
  strial 
  punctures 
  fine, 
  distant 
  about 
  four 
  

   diameters; 
  intervals 
  with 
  very 
  minute 
  scattered 
  punctures. 
  

  

  Metasternal 
  lobe 
  separating 
  middle 
  coxae 
  one-third 
  as 
  wide 
  as 
  the 
  

   plate 
  behind 
  the 
  coxae. 
  

  

  Allotype 
  female, 
  length 
  14 
  mm., 
  width 
  9 
  mm. 
  Similar 
  to 
  the 
  male 
  

   except 
  that 
  the 
  pronotal 
  prominences 
  are 
  less 
  strongly 
  developed 
  and 
  

   the 
  head 
  is 
  different. 
  The 
  vertical 
  face 
  of 
  the 
  clypeus 
  is 
  one-third 
  

   as 
  high 
  as 
  basal 
  length; 
  its 
  upper 
  truncate 
  edge 
  also 
  one-third 
  the 
  

   length 
  of 
  the 
  base; 
  the 
  concave 
  triangular 
  sides 
  of 
  the 
  clypeal 
  horn 
  

   with 
  the 
  upper 
  edge 
  about 
  twice 
  as 
  long 
  as 
  the 
  anterior 
  edge; 
  the 
  

   wide 
  truncate 
  frontal 
  horn 
  is 
  about 
  three-fourths 
  as 
  high 
  as 
  wide 
  and 
  

   about 
  four 
  times 
  as 
  high 
  as 
  the 
  low 
  secondary 
  lateral 
  horns, 
  or 
  tubercles. 
  

  

  7V^^.— 
  Holotype 
  male, 
  USNM 
  61077. 
  

  

  Type 
  locality. 
  — 
  Imperial 
  County, 
  Calif., 
  "on 
  the 
  Experiment 
  Farm," 
  

   June 
  1912, 
  J. 
  C. 
  Bridwell. 
  

  

  Allotype 
  and 
  paratypes. 
  — 
  Allotype 
  female 
  and 
  210 
  paratypes 
  bear 
  

   the 
  following 
  data: 
  Texas: 
  1, 
  Castolon, 
  June 
  1, 
  1928, 
  Bibby; 
  1, 
  

   Tornilla 
  Flat, 
  Big 
  Bond 
  National 
  Park, 
  July 
  12, 
  1948, 
  desert, 
  3,650 
  

   feet, 
  at 
  light, 
  Werner 
  and 
  Nutting; 
  2, 
  Boquillas, 
  Brewster 
  County, 
  

   July 
  7, 
  1948, 
  C. 
  and 
  P. 
  Vaurie; 
  1, 
  Marathon, 
  June 
  14, 
  1948, 
  D. 
  Rocke- 
  

   feller 
  Expedition, 
  Cazier; 
  1, 
  Reeves 
  County, 
  June 
  10, 
  1939, 
  Robinson. 
  

  

  New 
  Mexico: 
  1, 
  Artesia, 
  July 
  29, 
  1937, 
  D. 
  J. 
  and 
  J. 
  N. 
  Knull; 
  1, 
  

   White 
  Sands, 
  July 
  23, 
  1933, 
  Benedict. 
  

  

  Arizona: 
  4, 
  Agua 
  Fria, 
  Aug. 
  6, 
  1917, 
  Bequaert, 
  June 
  26, 
  1938, 
  

   Duncan; 
  2, 
  Aquila, 
  Maricopa 
  County, 
  Aug. 
  21, 
  22, 
  1927, 
  CU 
  lot 
  542, 
  

   sub 
  330; 
  2, 
  Arlington, 
  July 
  25, 
  1948, 
  Anderson; 
  15, 
  Arizona 
  (State 
  

   label 
  only); 
  5, 
  Avondale 
  Ranch, 
  Agua 
  Fria 
  River, 
  Aug. 
  7, 
  1917, 
  

   Wheeler 
  leg.; 
  4, 
  Baboquivari 
  Mountains, 
  July 
  24, 
  1941, 
  Beamer, 
  

   July 
  24, 
  1941, 
  Todd; 
  2, 
  Buckeye, 
  July 
  30, 
  31, 
  1935, 
  at 
  light, 
  Christen- 
  

   son; 
  1, 
  Cashion, 
  Maricopa 
  County, 
  Aug. 
  25, 
  1949, 
  at 
  light, 
  Werner 
  

   and 
  Nutting; 
  5, 
  Cibola, 
  August 
  1911; 
  1, 
  Continental, 
  Pima 
  County, 
  

   July 
  29, 
  1948, 
  Ball; 
  1, 
  Coyote 
  Mountains, 
  Aug. 
  4, 
  7, 
  1916; 
  1, 
  Dome, 
  

   July 
  21, 
  1924, 
  Van 
  Duzee; 
  4, 
  Ehrenberg, 
  July 
  20, 
  1946, 
  June 
  12, 
  

   1943, 
  Grassman, 
  July 
  18, 
  1939, 
  Stager, 
  June 
  21, 
  1938, 
  Parker; 
  10, 
  

   Globe, 
  Duncan, 
  Sept. 
  8, 
  1930, 
  July 
  11, 
  1931, 
  July, 
  August, 
  Duncan 
  

   and 
  Parker; 
  7, 
  Hope, 
  Yuma 
  County, 
  Aug. 
  12, 
  1948, 
  greasewood 
  desert, 
  

   1,400 
  feet, 
  at 
  light, 
  Werner 
  and 
  Nutting; 
  1, 
  Hot 
  Springs, 
  July 
  16 
  

   (year 
  not 
  given), 
  at 
  light, 
  MorrUl; 
  2, 
  Huachuca 
  Mountains; 
  2, 
  Kits 
  

  

  