﻿598 
  PR0CEEDIN08 
  OF 
  THE 
  XATIOXAL 
  MUSEUM. 
  vol.44. 
  

  

  labia 
  and 
  Spongovostox 
  in 
  the 
  character 
  of 
  the 
  shorter 
  subconical 
  

   fourth 
  segment 
  of 
  the 
  antennae 
  but 
  the 
  shorter 
  cheeks 
  and 
  longer 
  

   eyes 
  will 
  serve 
  to 
  distinguish 
  it. 
  

  

  Labia, 
  as 
  repcesented 
  in 
  our 
  fauna, 
  contains 
  two 
  species, 
  L. 
  minor 
  

   Linnaeus, 
  and 
  L. 
  curvicauda 
  Motschulsky. 
  This 
  last 
  is 
  a 
  cosmopoli- 
  

   tan 
  species 
  just 
  recently 
  recorded 
  from 
  within 
  our 
  boundaries, 
  a 
  

   number 
  havmg 
  been 
  taken 
  in 
  Florida 
  by 
  Mr. 
  Hebard, 
  of 
  Philadelphia. 
  

   Like 
  L. 
  minor, 
  also 
  a 
  cosmopolitan 
  species 
  but 
  occurring 
  widely 
  dis- 
  

   tributed 
  in 
  the 
  United 
  States, 
  curvicauda 
  is 
  a 
  minute 
  species 
  but 
  is 
  

   easily 
  distinguished 
  from 
  its 
  ally 
  by 
  the 
  decidedly 
  more 
  curved 
  

   forceps 
  of 
  the 
  male 
  and 
  by 
  the 
  last 
  ventral 
  segment 
  of 
  the 
  abdomen 
  

   being 
  unarmed 
  in 
  both 
  sexes 
  while 
  in 
  the 
  male 
  of 
  minor 
  it 
  bears 
  a 
  

   backward 
  projecting 
  tooth. 
  The 
  females 
  of 
  these 
  two 
  species 
  are 
  

   harder 
  to 
  separate 
  but 
  the 
  unicolorously 
  yellow 
  brown 
  legs 
  of 
  minor 
  

   are 
  quite 
  distinct 
  from 
  those 
  of 
  curvicauda, 
  which 
  are 
  darker 
  basally 
  

   or 
  more 
  or 
  less 
  infuscated 
  all 
  over. 
  

  

  Prolabia 
  contains 
  two 
  distinct 
  species 
  found 
  in 
  the 
  United 
  States. 
  

   They 
  may 
  be 
  separated 
  by^he 
  following 
  key. 
  

  

  Key 
  to 
  species 
  of 
  genus 
  Prolabia. 
  

  

  a^. 
  Wings 
  not 
  projecting 
  beyond 
  the 
  tips 
  of 
  the 
  elytra. 
  

  

  ¥. 
  Segments 
  of 
  the 
  apical 
  half 
  of 
  the 
  antennae 
  strongly 
  clavate, 
  the 
  sides 
  nearly 
  

   straight; 
  last 
  ventral 
  segment 
  of 
  male 
  three 
  times 
  as 
  broad 
  as 
  long, 
  the 
  

  

  pygidium 
  of 
  the 
  same 
  sex 
  tapering 
  posteriorly 
  arachidis 
  Yersin. 
  

  

  b-. 
  Segments 
  of 
  the 
  apical 
  half 
  of 
  the 
  antennae 
  fusciform; 
  last 
  ventral 
  segment 
  of 
  

   the 
  abdomen 
  of 
  the 
  male 
  no 
  more 
  than 
  twice 
  as 
  broad 
  as 
  long 
  , 
  the 
  pygidium 
  

  

  of 
  same 
  sex 
  quadrate 
  unidentata 
  var. 
  burgessi 
  Scudder. 
  

  

  a'^. 
  Wings 
  projecting 
  beyond 
  the 
  tips 
  of 
  the 
  elytra 
  unidentata 
  Beauvois. 
  

  

  Prolabia 
  arachidis 
  Yersin 
  is 
  a 
  cosmopolitan 
  species 
  recorded 
  a 
  

   number 
  of 
  times 
  from 
  just 
  south 
  of 
  the 
  United 
  States 
  but 
  never 
  yet 
  

   reported 
  north 
  of 
  Mexico 
  except 
  once 
  under 
  the 
  name 
  Labia 
  burgessi 
  

   by 
  Samuel 
  Henshaw.^ 
  Besides 
  specimens 
  from 
  the 
  lot 
  on 
  which 
  this 
  

   record 
  of 
  Henshaw 
  was 
  based, 
  the 
  United 
  States 
  National 
  Museum 
  

   contains 
  one 
  male 
  taken 
  from 
  a 
  ship 
  at 
  San 
  Francisco, 
  California, 
  which 
  

   had 
  recently 
  arrived 
  from 
  India, 
  and 
  also 
  a 
  pair 
  from 
  a 
  lot 
  of 
  speci- 
  

   mens 
  taken 
  by 
  Prof. 
  A. 
  P. 
  Morse 
  in 
  a 
  slaughterhouse 
  in 
  Brighton, 
  

   Massachusetts, 
  on 
  February 
  1, 
  1909. 
  Kecently 
  a 
  single 
  female 
  ol 
  

   this 
  species 
  was 
  sent 
  to 
  the 
  United 
  States 
  National 
  Museum 
  by 
  G. 
  N. 
  

   Collins, 
  who 
  collected 
  it 
  at 
  Aiken, 
  Florida, 
  in 
  May, 
  1908. 
  

  

  The 
  Labia 
  brunnea 
  of 
  Scudder 
  is 
  here 
  sunk 
  in 
  synonymy 
  under 
  

   arachidis 
  Yersin. 
  Types 
  of 
  brunnea 
  have 
  been 
  examined 
  and 
  found 
  

   to 
  differ 
  in 
  no 
  essential 
  character 
  from 
  specimens 
  of 
  arachidis 
  from 
  

   Mexico 
  named 
  by 
  Burr 
  or 
  the 
  above-mentioned 
  male 
  from 
  Cahfornia, 
  

   also 
  named 
  by 
  Burr 
  as 
  arachidis. 
  Brunnea 
  is 
  evidently 
  unknown 
  to 
  

  

  1 
  Psyche, 
  vol. 
  9, 
  1900, 
  p. 
  119. 
  

  

  