﻿REVISION 
  OF 
  TRIBE 
  CERESINI 
  — 
  CALDWELL 
  515 
  

  

  SPISSISTILUS 
  CONSTANS 
  VARIANS. 
  new 
  subspecies 
  

  

  Plate 
  22 
  

  

  Resembling 
  typical 
  constans 
  but 
  with 
  the 
  styles 
  in 
  the 
  male 
  more 
  

   slender 
  and 
  elongate 
  and 
  the 
  notch 
  in 
  the 
  center 
  of 
  the 
  posterior 
  

   margin 
  of 
  the 
  female 
  last 
  ventral 
  segment 
  broader. 
  

  

  Teeth 
  on 
  lateral 
  valves 
  strongly 
  convergent 
  apically, 
  acute; 
  bases 
  

   less 
  abruptly 
  bulbose 
  than 
  in 
  typical 
  form. 
  Apical 
  portion 
  of 
  styles 
  

   almost 
  as 
  long 
  as 
  posterior 
  arm 
  of 
  aedeagus, 
  curved 
  dorsally; 
  apices 
  

   narrowly 
  rounded. 
  Posterior 
  arm 
  of 
  aedeagus 
  with 
  three 
  pairs 
  of 
  

   subbasal 
  teeth; 
  one 
  pair 
  projecting 
  ventrally 
  from 
  ventral 
  lip 
  of 
  

   functional 
  orifice, 
  one 
  pair 
  slightly 
  dorsad 
  and 
  well 
  laterad 
  to 
  the 
  teeth 
  

   on 
  the 
  functional 
  orifice 
  projecting 
  laterad, 
  and 
  one 
  small 
  pair 
  dorsad 
  

   to 
  latter 
  pair 
  projecting 
  laterad. 
  Last 
  ventral 
  female 
  segment 
  with 
  

   broader 
  notch 
  in 
  center 
  of 
  posterior 
  margin 
  than 
  typical 
  constans 
  

   (Walker). 
  

  

  Holotype 
  male 
  (U.S.N.M. 
  No. 
  57651) 
  and 
  paratype 
  male 
  from 
  

   Concan, 
  Tex., 
  June 
  4, 
  1933 
  (Oman) 
  ; 
  allotype 
  female 
  and 
  three 
  female 
  

   paratypes 
  from 
  Brownsville, 
  Tex., 
  May 
  31, 
  1933 
  (Oman); 
  female 
  

   paratype 
  and 
  two 
  male 
  paratypes, 
  Brownwood, 
  Tex., 
  May 
  29, 
  1941 
  

   (Christensen) 
  ; 
  male 
  paratype, 
  Dallas, 
  Tex., 
  June 
  10, 
  1905 
  (Yothers), 
  

   and 
  female 
  paratype 
  same 
  locality, 
  June 
  11, 
  1907 
  (Pierce) 
  ; 
  one 
  female 
  

   paratype, 
  Hearne, 
  Tex., 
  June 
  21, 
  1912 
  (Goad); 
  two 
  male 
  paratypes, 
  

   Kerrville, 
  Tex., 
  May 
  30, 
  1906 
  (Pratt); 
  one 
  female 
  paratype, 
  Valley 
  

   View, 
  Tex., 
  June 
  31 
  (Beck 
  and 
  Hall) 
  ; 
  and 
  one 
  male 
  paratype 
  and 
  one 
  

   female 
  paratype, 
  Victoria, 
  Tex., 
  May 
  18, 
  1907 
  (Mitchell). 
  

  

  The 
  known 
  forms 
  of 
  the 
  Western 
  Hemisphere 
  are 
  listed 
  below: 
  

  

  constans 
  (Walker, 
  1851), 
  new 
  combination 
  [Thelia, 
  Ceresa] 
  

  

  varians, 
  new 
  subspecies 
  

   cornutus 
  (Fowler, 
  1895), 
  new 
  combination 
  [Stidocephala] 
  

   femoratus 
  (Fairmaire, 
  1846), 
  new 
  combination 
  [Ceresa] 
  

   festinus 
  (Say, 
  1830), 
  new 
  combination 
  [Membracis, 
  Thelia, 
  Stidocephala] 
  

  

  duhius 
  (Fowler, 
  1895) 
  [Stidocephala] 
  

  

  fuscus 
  (Fowler, 
  1895), 
  new 
  synonymy 
  [Stidocephala] 
  

   franciscanus 
  {Stk\, 
  1859), 
  new 
  combination 
  [Ceresa, 
  Stictocephala] 
  

  

  nigricans 
  (Van 
  Duzee, 
  1915), 
  new 
  synonymy 
  [Stictocephala] 
  

   occidentalis 
  (Funkhouser, 
  1915), 
  new 
  combination 
  [Ceresa] 
  

   rotundatus 
  (St&l, 
  1869), 
  new 
  combination 
  [Stictocephala] 
  

   uniformis 
  (Fairmaire, 
  1846), 
  new 
  combination 
  [Ceresa, 
  Stictocephala] 
  

  

  Genus 
  STICTOLOBUS 
  Metcalf 
  

  

  Plate 
  19, 
  FiGtJRE 
  11 
  

  

  Stidolobus 
  Metcalf, 
  1916, 
  pp. 
  1-3. 
  

  

  Heretofore 
  confused 
  with 
  the 
  forms 
  of 
  Tortistilus, 
  new 
  genus, 
  that 
  

   occur 
  on 
  cypress 
  but 
  separated 
  from 
  that 
  genus 
  by 
  the 
  great 
  reduction 
  

   of 
  size 
  in 
  the 
  apical 
  half 
  of 
  the 
  styles 
  and 
  by 
  the 
  aedeagus 
  lacking 
  an 
  

  

  