﻿606 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM. 
  vol.44. 
  

  

  By 
  far 
  the 
  greater 
  proportion 
  of 
  the 
  nearctic 
  Mantidse 
  belong 
  to 
  the 
  

  

  first 
  subfamily 
  as 
  defined 
  above. 
  The 
  dozen 
  genera 
  comprising 
  this 
  

  

  subfamily 
  in 
  our 
  fauna 
  may 
  be 
  for 
  the 
  most 
  part 
  easily 
  separated 
  by 
  

  

  the 
  following 
  key, 
  which 
  is 
  based 
  partially 
  on 
  purely 
  superficial 
  

  

  characters. 
  

  

  Key 
  to 
  genera 
  of 
  subfamily 
  Mantinx. 
  

  

  a'. 
  Eyes 
  rounded 
  (obtusely 
  conical 
  in 
  Litaneutria) 
  (fig. 
  19), 
  insecta 
  varying 
  in 
  size 
  

   and, 
  except 
  the 
  females 
  of 
  Thesprotia 
  and 
  Bactromantis, 
  all 
  with 
  more 
  or 
  less 
  

   well-developed 
  wings. 
  

   6'. 
  Inner 
  margin 
  of 
  the 
  upper 
  surface 
  of 
  the 
  extended 
  anterior 
  coxae 
  not 
  con- 
  

   spicuously 
  dilated 
  apically 
  (fig. 
  20). 
  

   c'. 
  Pronotum 
  not 
  or 
  but 
  little 
  longer 
  than 
  the 
  anterior 
  coxae. 
  

  

  Litaneutria 
  Saussure. 
  

   c^. 
  Pronotum 
  considerably 
  longer 
  than 
  the 
  anterior 
  coxae, 
  

   d'. 
  Antennae 
  filiform. 
  

  

  e'. 
  Broadest 
  portion 
  of 
  the 
  pronotum 
  far 
  in 
  advance 
  of 
  the 
  middle, 
  the 
  width 
  

   again 
  diminishing 
  anterior 
  of 
  the 
  broadest 
  point 
  (fig. 
  17). 
  

   /'. 
  Larger, 
  pronotum 
  more 
  than 
  10 
  mm. 
  in 
  length. 
  

  

  gr' 
  . 
  Pronotum 
  of 
  the 
  female 
  scarcely 
  longer 
  than 
  the 
  elytra. 
  

   hK 
  Facial 
  shields 
  distinctly 
  more 
  than 
  twice 
  as 
  broad 
  as 
  high 
  in 
  both 
  

   sexes, 
  in 
  the 
  male 
  about 
  three 
  times 
  as 
  broad 
  (fig. 
  24). 
  

  

  Stagmomantis 
  Saussure. 
  

   fi^. 
  Facial 
  shield 
  of 
  neither 
  sex 
  scarcely 
  more 
  than 
  twice 
  as 
  broad 
  as 
  

   high 
  (fig. 
  25). 
  

   i'. 
  Inner 
  surface 
  of 
  fore 
  coxae 
  ornamented 
  on 
  the 
  basal 
  third 
  with 
  a 
  

  

  large 
  oval 
  piceous 
  spot 
  Mantis 
  Linnaeus. 
  

  

  i^. 
  Inner 
  surface 
  of 
  fore 
  coxae 
  not 
  ornamented 
  as 
  above. 
  

  

  Paratenodera 
  Rehn. 
  

   gr2. 
  Pronotum 
  of 
  the 
  female 
  decidedly 
  longer 
  than 
  the 
  elytra. 
  

  

  Phasmomantis 
  Saussme. 
  

   /2. 
  Smaller, 
  the 
  pronotum 
  no 
  more 
  than 
  10 
  mm. 
  in 
  length. 
  

  

  Callimantis 
  Stal. 
  

   e^. 
  Broadest 
  portion 
  of 
  the 
  pronotum 
  beginning 
  at 
  about 
  the 
  middle 
  and 
  from 
  

   there 
  to 
  the 
  apex 
  almost 
  or 
  quite 
  parallel 
  (fig. 
  2Z)...Gonatista 
  Saussure. 
  

   d^. 
  Antennae 
  distinctly 
  swollen 
  just 
  beyond 
  the 
  base 
  (fig. 
  22). 
  

  

  Brunneria 
  Saussiu*e. 
  

   6^. 
  Inner 
  margin 
  of 
  the 
  upper 
  surface 
  of 
  the 
  extended 
  anterior 
  coxae 
  abruptly 
  and 
  

   considerably 
  elevated 
  apically 
  (fig. 
  21). 
  

   ci. 
  Anterior 
  tibiae 
  longer 
  than 
  their 
  apical 
  claw. 
  

   dK 
  Fore 
  and 
  hind 
  sections 
  of 
  the 
  pronotum 
  subequal 
  in 
  length. 
  

  

  Oligonyx 
  Saussure. 
  

   rf2. 
  Hind 
  section 
  of 
  the 
  pronotum 
  about 
  twice 
  as 
  long 
  as 
  the 
  fore 
  section. 
  

  

  Bactromantis 
  Scudder. 
  

  

  c2. 
  Anterior 
  tibiae 
  no 
  longer 
  than 
  the 
  apical 
  claw 
  Thesprotia 
  Scudder. 
  

  

  a^. 
  Eyes 
  produced 
  and 
  acutely 
  conical 
  (fig. 
  26); 
  insects 
  of 
  small 
  size, 
  seldom 
  over 
  an 
  

   inch 
  long, 
  and 
  entirely 
  wingless 
  Yersinia 
  Saussure. 
  

  

  Several 
  years 
  ago 
  ^ 
  I 
  gave 
  a 
  table 
  of 
  the 
  species 
  of 
  the 
  genus 
  

   Litaneutria. 
  That 
  key 
  was 
  not 
  very 
  satisfactory 
  but 
  it 
  was 
  the 
  best 
  

   I 
  could 
  do 
  then 
  and 
  I 
  can 
  do 
  no 
  better 
  now. 
  Since 
  that 
  time 
  one 
  

   new 
  species 
  has 
  been 
  described, 
  the 
  L. 
  skinneri 
  of 
  Rehn, 
  characterized 
  

   by 
  the 
  abbreviated 
  organs 
  of 
  flight 
  of 
  the 
  males. 
  It 
  is 
  possible 
  that 
  

  

  J 
  Proc. 
  U. 
  S. 
  Nat. 
  Mus., 
  vol. 
  28, 
  1905, 
  p. 
  463. 
  

  

  