﻿536 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol. 
  se 
  

  

  short, 
  rather 
  stout; 
  tibiae 
  nearly 
  straight, 
  not 
  denticulate 
  within; 
  

   posterior 
  tibiae 
  very 
  sharply 
  rounded 
  but 
  not 
  truncate 
  apically. 
  

  

  Measurements 
  in 
  millimeters. 
  — 
  Length 
  6 
  to 
  9. 
  

  

  Female 
  genitalia 
  (fig. 
  71, 
  a, 
  b, 
  c). 
  — 
  Genital 
  tube 
  not 
  very 
  heavily 
  

   chitinized; 
  apical 
  plates 
  reduced, 
  lightly 
  chitinized, 
  broadly 
  rounded, 
  

   thickly 
  set 
  with 
  long 
  hairs; 
  coxites 
  heavily 
  chitinized, 
  and 
  enlarged 
  

   into 
  a 
  broad, 
  tridentate 
  plate 
  on 
  each 
  side; 
  styli 
  invisible. 
  

  

  Male 
  genitalia. 
  — 
  Nearly 
  identical 
  with 
  those 
  of 
  0. 
  vittatus, 
  but 
  

   thinner, 
  not 
  quite 
  so 
  greatly 
  curved, 
  not 
  so 
  deeply 
  excavated, 
  and 
  

   lacking 
  all 
  indication 
  of 
  a 
  ventral 
  keel. 
  

  

  Type 
  locality. 
  — 
  Paso 
  del 
  Norte, 
  Mexico. 
  

  

  Specimens 
  of 
  ovipennis 
  have 
  been 
  seen 
  from 
  San 
  Diego, 
  Garrison, 
  

   Bexar, 
  Goliad, 
  Beeville, 
  Bowie, 
  Del 
  Rio, 
  and 
  El 
  Paso, 
  all 
  in 
  Texas. 
  

  

  Remarks. 
  — 
  In 
  this 
  species 
  the 
  teeth 
  of 
  the 
  coxites 
  are 
  shorter 
  and 
  

   not 
  as 
  stout 
  as 
  in 
  0. 
  vittatus. 
  They 
  tend 
  to 
  be 
  flat 
  or 
  to 
  recurve 
  down- 
  

   ward, 
  whereas 
  those 
  of 
  vittatus 
  are 
  evenly 
  concave 
  upon 
  the 
  upper 
  side. 
  

  

  OPHRYASTES 
  VITTATUS 
  (Say) 
  

  

  Figure 
  72 
  

  

  Liparus 
  vittatus 
  Say, 
  1824, 
  p. 
  316. 
  

  

  Color 
  dark 
  to 
  light 
  gra}^, 
  pronotum 
  trivittate 
  with 
  dark 
  brown, 
  

   elytra 
  with 
  the 
  suture 
  nearly 
  always 
  and 
  intervals 
  3, 
  5, 
  7, 
  and 
  9 
  

   usually 
  more 
  or 
  less 
  completely 
  dark 
  brown. 
  Rostrum 
  continuous 
  

   with 
  the 
  head, 
  moderately 
  stout 
  and 
  not 
  greatly 
  dilated 
  at 
  apex 
  or 
  

   greatly 
  arched 
  dorsally 
  near 
  apex; 
  median 
  sulcus 
  broad, 
  deep, 
  with 
  

   tawny 
  imbricate 
  scales 
  at 
  bottom, 
  narrowing 
  somewhat 
  and 
  becommg 
  

   shallower 
  at 
  junction 
  of 
  head 
  and 
  rostrum 
  and 
  extending 
  up 
  onto 
  the 
  

   front 
  nearly 
  to 
  the 
  vertex; 
  lateral 
  sulci 
  very 
  broad 
  and 
  deep, 
  with 
  

   imbricate 
  scales 
  at 
  bottom, 
  nearly 
  straight; 
  rostrum 
  and 
  head 
  ex- 
  

   tremely 
  finely 
  and 
  sparsely 
  punctate, 
  or 
  practically 
  impunctate. 
  

   Pronotum 
  almost 
  exactly 
  twice 
  as 
  wide 
  as 
  long, 
  widest 
  at 
  basal 
  third, 
  

   base 
  about 
  one-eighth 
  wider 
  than 
  apex, 
  apex 
  dorsally 
  slightly 
  pro- 
  

   duced, 
  base 
  dorsally 
  sinuate 
  and 
  fimbriate 
  with 
  scales; 
  sides 
  tubercu- 
  

   late, 
  with 
  a 
  large 
  basal 
  and 
  a 
  smaller 
  apical 
  tubercle; 
  disk 
  coarsely, 
  

   rather 
  sparsely 
  punctate, 
  and 
  rugose; 
  median 
  impression 
  fine, 
  some- 
  

   times 
  interrupted, 
  but 
  nearly 
  always 
  present. 
  Scutelium 
  usuall}'" 
  well 
  

   exposed, 
  transverse. 
  Elytra 
  inflated 
  (female) 
  or 
  not 
  greatly 
  inflated 
  

   (male); 
  striae 
  moderately 
  finely 
  impressed, 
  punctures 
  large, 
  round, 
  

   deep, 
  and 
  separated; 
  elytral 
  intervals 
  subequal 
  m 
  width, 
  the 
  sutural 
  

   and 
  3, 
  5, 
  7, 
  and 
  9 
  slightly 
  elevated; 
  sutural 
  intervals 
  with 
  fine 
  puncta- 
  

   tion 
  and 
  numerous 
  fine, 
  short, 
  white 
  or 
  tawny 
  setae; 
  setae 
  practically 
  

   lacking 
  elsewhere 
  on 
  elytra. 
  Legs 
  fairly 
  stout, 
  anterior 
  tibiae 
  greatly 
  

   curved 
  near 
  apex, 
  posterior 
  tibiae 
  varying 
  from 
  subtruncate 
  to 
  evenly 
  

   rounded; 
  tarsi 
  with 
  joints 
  1 
  to 
  3 
  of 
  about 
  equal 
  width, 
  the 
  third 
  joint 
  

  

  