﻿WEEVILS 
  OF 
  THE 
  TRIBE 
  OPHRYASTINI 
  — 
  DAVIS 
  511 
  

  

  Type 
  locality. 
  — 
  "Eac:lo 
  Pass" 
  [Texas]. 
  

  

  I 
  have 
  seen 
  specimens 
  of 
  this 
  species 
  from 
  Alpine, 
  Tex., 
  and 
  from 
  

   San 
  Luis 
  Potosi, 
  Chihuahua 
  City, 
  and 
  Saltillo, 
  Coahuila, 
  Mexico. 
  

  

  Remark-'^'. 
  — 
  lutparjoderes 
  speciosus 
  (LeConte) 
  is 
  evidently 
  a 
  Mexican 
  

   species 
  for 
  which 
  the 
  southern 
  United 
  States 
  is 
  the 
  northern 
  limit 
  of 
  

   distribution. 
  Its 
  large 
  size, 
  dark 
  color, 
  extremely 
  lightly 
  punctate 
  

   pronotum, 
  and 
  conspicuous 
  wliite 
  vittae 
  make 
  this 
  species 
  the 
  most 
  

   easily 
  recognized 
  of 
  the 
  genus. 
  

  

  EUPAGODERES 
  NIVOSUS 
  Fall 
  

  

  Eupagoderes 
  nivosus 
  Fall, 
  1910, 
  p. 
  190. 
  

  

  Elongate, 
  moderately 
  convex, 
  covered 
  with 
  white 
  scales 
  through- 
  

   out, 
  sometimes 
  with 
  irregularly 
  scattered 
  small 
  black 
  spots; 
  a 
  median 
  

   and 
  two 
  vague 
  lateral 
  gray 
  vittae 
  sometimes 
  present 
  upon 
  the 
  pro- 
  

   notum. 
  One 
  specimen 
  seen 
  was 
  lightly 
  irrorate 
  with 
  black 
  upon 
  the 
  

   basal 
  half 
  of 
  the 
  elytra. 
  Rostrum 
  long, 
  not 
  greatly 
  arched 
  above, 
  

   not 
  constricted 
  at 
  base 
  beneath; 
  continuous 
  with 
  the 
  front, 
  trisulcate, 
  

   the 
  median 
  sulcus 
  sharply 
  defined 
  and 
  extending 
  up 
  onto 
  the 
  front 
  in 
  

   some 
  specimens; 
  lateral 
  sulci 
  deep, 
  broadly 
  arcuate, 
  shghtly 
  con- 
  

   vergent 
  basally. 
  Head 
  smoothly 
  rounded, 
  head 
  and 
  rostrum 
  finely 
  

   and 
  sparsely 
  punctate. 
  Pronotum 
  one-third 
  to 
  two-sevenths 
  wider 
  

   than 
  long, 
  sides 
  evenly, 
  strongly 
  arcuate, 
  apical 
  margin 
  slightly 
  pro- 
  

   duced 
  at 
  middle, 
  basal 
  margin 
  shghtly 
  emarginate 
  at 
  mitldle; 
  median 
  

   groove 
  present; 
  disk 
  moderately 
  finely 
  and 
  rather 
  irregularly 
  punctate, 
  

   having 
  a 
  rugose 
  appearance 
  which 
  is 
  more 
  noticeable 
  toward 
  the 
  

   sides; 
  sides 
  of 
  pronotum 
  subtuberculate 
  in 
  some 
  specimens. 
  E^lytra 
  

   oval, 
  striae 
  finely 
  impressed, 
  strial 
  punctures 
  fine; 
  intervals 
  feebly 
  

   convex, 
  3 
  and 
  5 
  slightly 
  wider. 
  Legs 
  moderately 
  robust; 
  all 
  tibiae 
  

   denticulate 
  within; 
  posterior 
  tibiae 
  truncate, 
  the 
  flattened 
  end 
  narrow 
  

   and 
  scaly. 
  

  

  Measurements 
  in 
  millimeters. 
  — 
  Length 
  11 
  to 
  15. 
  

  

  Female 
  genitalia. 
  — 
  Genital 
  tube 
  short, 
  wedge 
  shaped, 
  dorsoventrally 
  

   flattened, 
  rather 
  lightly 
  chitinized; 
  apical 
  plates 
  thick, 
  concave 
  above, 
  

   their 
  apices 
  directed 
  upward; 
  styli 
  extremely 
  small, 
  borne 
  upon 
  

   membranous 
  areas 
  on 
  the 
  dorsal 
  bases 
  of 
  the 
  apical 
  i)lates. 
  Eighth 
  

   stemite 
  broadly, 
  obtusely 
  emarginate 
  at 
  apex. 
  

  

  Male 
  genitalia. 
  — 
  Median 
  lobe 
  only 
  moderately 
  heavily 
  chitinizcd, 
  

   brown, 
  curved 
  less 
  shorfjly 
  in 
  i)rofile 
  than 
  in 
  most 
  species, 
  apex 
  very 
  

   slightly 
  recurved; 
  moderately 
  deeply 
  excavated 
  a|)irally 
  as 
  viewed 
  

   from 
  above, 
  apex 
  broadly 
  rounded, 
  sides 
  near 
  the 
  apex 
  sinuate, 
  sides 
  

   posterior 
  to 
  the 
  median 
  orifice 
  straight, 
  slightly 
  divergent. 
  

  

  Type 
  locality 
  . 
  — 
  Vlutonix 
  , 
  Ariz. 
  

  

  Specimens 
  of 
  this 
  species 
  have 
  been 
  seen 
  from 
  Phoenix 
  (J. 
  S. 
  Tait) 
  

   and 
  Rice 
  (D. 
  K. 
  Duncan), 
  Ariz, 
  

  

  