﻿504 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol.98 
  

  

  STICTOCEPHALA 
  ABNORMA. 
  new 
  species 
  

  

  Plate 
  20 
  

  

  Superficially 
  resembling 
  borealis 
  (Fairmaire) 
  buc 
  with 
  the 
  pronotum 
  

   more 
  arched. 
  Closely 
  related 
  to 
  militaris 
  (Gibson 
  and 
  Wells) 
  in 
  

   structure 
  of 
  the 
  genitaha 
  but 
  differing 
  from 
  that 
  species 
  by 
  the 
  more 
  

   acute 
  teeth 
  on 
  the 
  lateral 
  valves 
  and 
  by 
  the 
  calipcrlike 
  styles. 
  

  

  Length, 
  male 
  7.2 
  mm., 
  female 
  7.5 
  mm.; 
  width 
  across 
  horns, 
  male 
  

   3.8 
  mm., 
  female 
  4.2 
  mm. 
  General 
  color 
  of 
  dried 
  material 
  yellow 
  

   washed 
  with 
  green; 
  sides 
  of 
  pronotum 
  spotted 
  with 
  white. 
  

  

  Pronotum 
  highly 
  arched; 
  metopidium 
  flat 
  from 
  horns 
  to 
  dorsal 
  

   crest; 
  humerals 
  Uttle 
  produced; 
  suprahumerals 
  produced 
  into 
  blunt 
  

   horns; 
  posterior 
  process 
  gradually 
  narrowed, 
  acute 
  apically. 
  

  

  Male 
  with 
  lateral 
  valves 
  elongate, 
  narrow; 
  teeth 
  arising 
  from 
  upper 
  

   fourth, 
  as 
  long 
  as 
  width 
  of 
  valves, 
  acute 
  apically. 
  Sternal 
  plate 
  nar- 
  

   row, 
  elongate, 
  acute 
  V-shaped 
  notch 
  in 
  apical 
  margin. 
  Styles 
  almost 
  

   three 
  times 
  as 
  long 
  as 
  aedeagus, 
  caliperlike 
  in 
  apical 
  third 
  in 
  ventral 
  

   aspect, 
  S-shaped 
  in 
  lateral 
  aspect. 
  Connective 
  from 
  styles 
  to 
  aedeagus 
  

   as 
  long 
  as 
  aedeagus. 
  

  

  Last 
  ventral 
  segment 
  of 
  female 
  with 
  broad 
  V-shaped 
  notch 
  in 
  center 
  

   of 
  posterior 
  margin. 
  

  

  Male 
  holotype 
  (U.S.N.M. 
  No. 
  57641), 
  three 
  male 
  paratypes, 
  female 
  

   allotype, 
  and 
  one 
  female 
  paratype 
  from 
  Concan, 
  Tex,, 
  June 
  4, 
  1933 
  

   (Oman); 
  one 
  male 
  and 
  one 
  female 
  paratype 
  from 
  Brownwood, 
  Tex., 
  

   May 
  29, 
  1941 
  (Christenson). 
  

  

  STICTOCEPHALA 
  TAURINIFORMIS. 
  new 
  species 
  

  

  Plate 
  21 
  

  

  Resembling 
  taurina 
  (Fitch) 
  but 
  with 
  lower 
  and 
  flatter 
  pronotiun. 
  

   Somewhat 
  similar 
  to 
  palmeri 
  (Van 
  Duzee) 
  in 
  general 
  appearance 
  but 
  

   with 
  longer 
  horns; 
  differing 
  from 
  any 
  related 
  species 
  by 
  the 
  suddenly 
  

   narrowed 
  apices 
  of 
  the 
  teeth 
  on 
  the 
  lateral 
  valves. 
  

  

  Length, 
  male 
  7.2 
  mm., 
  female 
  7.5 
  mm. 
  General 
  color 
  of 
  dried 
  

   material 
  green. 
  Triangle 
  formed 
  by 
  metopidium 
  above 
  the 
  bases 
  of 
  

   horns 
  red 
  brown, 
  dorsal 
  crest 
  of 
  same 
  color. 
  Lateral 
  areas 
  along 
  each 
  

   side 
  of 
  dorsal 
  crest 
  maculate 
  with 
  large 
  white 
  spots. 
  

  

  Pronotum 
  very 
  low, 
  little 
  arched, 
  coarsely 
  pitted; 
  metopidium 
  with 
  

   sides 
  parallel 
  in 
  frontal 
  aspect; 
  suprahumeral 
  horns 
  somewhat 
  flattened 
  

   dorsoventrally, 
  acute 
  apically, 
  projecting 
  slightly 
  upward 
  from 
  

   horizontal, 
  strongly 
  recurved 
  posteriorly; 
  posterior 
  process 
  elongate, 
  

   slender, 
  not 
  decUvent. 
  

  

  Male 
  with 
  teeth 
  on 
  lateral 
  valves 
  suddenly 
  convergent 
  and 
  nar- 
  

   rowed 
  in 
  apical 
  fourth. 
  Sternal 
  plate 
  with 
  deep, 
  acute, 
  V-shaped 
  

   apical 
  notch. 
  Styles 
  with 
  apical 
  portions 
  divergent 
  in 
  basal 
  fifth, 
  very 
  

  

  