﻿NO. 
  1970. 
  ySARCTIC 
  ORTHOPTEROUS 
  INSECTS— 
  CAUDELL. 
  603 
  

  

  Ceratinoptera 
  Bnmner 
  is 
  represented 
  by 
  two 
  species, 
  diaplina 
  

   Fabricius 
  and 
  lutea 
  Saussure 
  and 
  Zehntner. 
  DiapTiana 
  is 
  distin- 
  

   guishable 
  from 
  lutea 
  by 
  having 
  an 
  undulating 
  black 
  stripe 
  extending 
  

   longitudinally 
  across 
  each 
  half 
  of 
  the 
  pronotum 
  and 
  extending 
  back 
  

   over 
  the 
  elytra. 
  

  

  PJiyllodromica 
  Fieber 
  contains 
  a 
  single 
  North 
  American 
  species, 
  

   P. 
  abortiva 
  Caudell, 
  described 
  some 
  years 
  ago 
  from 
  Texas 
  as 
  Anaplecta 
  

   abortiva. 
  

  

  BlateUa 
  Caudell 
  contains 
  three 
  species 
  recorded 
  from 
  North 
  Amer- 
  

   ica 
  north 
  of 
  Mexico. 
  The 
  type, 
  germanica 
  Linnaeus, 
  is 
  easil}^ 
  distin- 
  

   guishable 
  from 
  the 
  other 
  species 
  by 
  the 
  disk 
  of 
  the 
  pronotum, 
  which 
  

   is 
  marked 
  b}^ 
  two 
  longitudinal 
  parallel 
  black 
  stripes. 
  The 
  other 
  two 
  

   species, 
  dilatata 
  Saussure 
  and 
  adspersicollis 
  Stal, 
  both 
  occur 
  in 
  our 
  

   Southern 
  States 
  only, 
  so 
  far 
  as 
  reported, 
  while 
  ger- 
  

   manica 
  is 
  a 
  household 
  pest 
  nearly 
  everywhere. 
  Lack 
  

   of 
  sufficient 
  authentic 
  material 
  of 
  B. 
  dilatata 
  renders 
  

   it 
  inadvisable 
  at 
  this 
  time 
  to 
  give 
  diagnostic 
  characters 
  

   for 
  the 
  separation 
  of 
  this 
  species 
  from 
  adspersicoUis. 
  

   The 
  females 
  can 
  be 
  distinguished 
  by 
  the 
  length 
  of 
  'disk 
  of 
  pseto^ 
  

   the 
  wings, 
  which 
  are 
  not 
  or 
  scarcely 
  longer 
  than 
  the 
  mops 
  cincta, 
  

   abdomen 
  in 
  dilatata 
  and 
  considerably 
  exceeding 
  it 
  in 
  sHojmGcoLORA- 
  

   adspersicoUis.^ 
  

  

  SupeTla 
  Shelford, 
  based 
  on 
  the 
  single 
  species 
  Blatta 
  supeUectilum 
  of 
  

   Serville, 
  has 
  as 
  the 
  main 
  differentiating 
  character 
  the 
  armature 
  of 
  the 
  

   anterior 
  inferior 
  margin 
  of 
  the 
  fore 
  femora, 
  a 
  very 
  unsatisfactory 
  

   character, 
  as 
  fully 
  set 
  forth 
  by 
  Saussure 
  and 
  Zehntner.^ 
  

  

  Pseudomops 
  contains 
  two 
  species 
  found 
  \vith 
  us, 
  P. 
  cincta 
  Burmeis- 
  

   ter 
  and 
  P. 
  inter 
  cepta 
  Burmeister. 
  The 
  latter 
  is 
  what 
  has 
  been 
  

   recorded 
  in 
  our 
  fauna 
  as 
  oblongata. 
  Shelford 
  separates 
  these 
  two 
  

   United 
  States 
  species 
  as 
  follows. 
  

  

  Key 
  to 
  species 
  of 
  genus 
  Pseudomops 
  . 
  

  

  a'. 
  Ground 
  color 
  of 
  promotum 
  fiiscous, 
  the 
  lateral 
  yellow 
  margin 
  not 
  inwardly 
  pro- 
  

   duced 
  (fig. 
  16) 
  cincta 
  Burmeister. 
  

  

  a-. 
  Ground 
  color 
  of 
  pronotimi 
  some 
  shade 
  of 
  rufous, 
  the 
  lateral 
  pale 
  border 
  produced 
  

   inwardly 
  intercepta 
  Burmeister. 
  

  

  PTioetdlia 
  Is&vigata 
  Palisot, 
  the 
  only 
  nearctic 
  representative 
  of 
  that, 
  

   genus, 
  has 
  as 
  synonyms 
  Nauphota 
  pallida 
  Brunner 
  and 
  N. 
  marginalis 
  

   Walker. 
  Kirby 
  catalogues 
  N. 
  pallada 
  Brunner 
  as 
  distinct 
  from 
  Isevi- 
  

   gata 
  Palisot, 
  placing 
  PaUsot's 
  species 
  in 
  the 
  genus 
  LeucopJisea 
  mth 
  

  

  1 
  Mr. 
  Shelford 
  has 
  made 
  this 
  species 
  the 
  type 
  of 
  a 
  new 
  genus, 
  which 
  he 
  calls 
  Neohlattella. 
  The 
  only 
  char- 
  

   acters 
  mentioned 
  as 
  diflferent 
  from 
  Blattella 
  are 
  the 
  ramose 
  ulnar 
  vein 
  of 
  the 
  wing 
  and 
  the 
  anterior 
  portion 
  

   of 
  the 
  wing 
  being 
  broader, 
  especially 
  apically, 
  This 
  last 
  character 
  is 
  good 
  for 
  the 
  separation 
  of 
  the 
  respective 
  

   type 
  species 
  of 
  these 
  two 
  genera, 
  but 
  does 
  not 
  separate 
  other 
  species 
  of 
  Blattella 
  from 
  adspersicollis, 
  some 
  

   species 
  indeed 
  falling 
  in 
  this 
  respect 
  nearly 
  intermediate 
  between 
  germunica 
  and 
  that 
  species. 
  Also, 
  I 
  find 
  

   considerable 
  variation 
  in 
  the 
  branching 
  of 
  the 
  uhiar 
  vein, 
  even 
  in 
  different 
  specimens 
  of 
  the 
  same 
  species. 
  

   The 
  examination 
  of 
  a 
  very 
  few 
  specimens 
  shows 
  a 
  variation 
  of 
  from 
  three 
  to 
  five 
  branching 
  in 
  adspersicollis 
  

   and 
  from 
  simple 
  to 
  two 
  branching 
  in 
  germanica. 
  I 
  therefore 
  consider 
  Neohlattella 
  a 
  synonym 
  of 
  Blattella. 
  

  

  2 
  Biol. 
  Cent.-Amer., 
  Orth., 
  vol. 
  1, 
  1893, 
  p. 
  30. 
  

  

  