﻿152 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  ^°^- 
  ^°^ 
  

  

  ting 
  into 
  the 
  emargination. 
  Parameres 
  connected 
  by 
  a 
  transverse 
  

   bridge 
  near 
  bases, 
  with 
  slender 
  anterior 
  and 
  lateral 
  apodemes; 
  each 
  

   paramere 
  with 
  posterior 
  portion 
  narrowed 
  and 
  curved 
  ventrolaterad 
  

   to 
  a 
  bladelike 
  apex, 
  a 
  small 
  sub-basal 
  tooth 
  on 
  ventral 
  side. 
  

  

  Material 
  examined.— 
  New 
  York: 
  Farmingdale, 
  July 
  9, 
  1938, 
  H. 
  and 
  

   M. 
  Townes, 
  1 
  cf 
  ; 
  Millwood, 
  June 
  21, 
  1936, 
  H. 
  Townes, 
  1 
  9. 
  

  

  New 
  Jersey: 
  Atsion, 
  June 
  17, 
  1949, 
  H. 
  Townes, 
  1 
  9; 
  Medford 
  Lakes, 
  

   June 
  17, 
  1939, 
  H. 
  Townes, 
  1 
  cf; 
  Riverside, 
  June 
  18, 
  1939, 
  H. 
  Townes, 
  

   1 
  9; 
  Riverton, 
  June 
  19, 
  Johnson, 
  1 
  cf 
  (type). 
  

  

  Georgia: 
  Thomasville, 
  May 
  15-30, 
  Pahner, 
  1 
  9. 
  

  

  Arkansas: 
  Pike 
  County, 
  June 
  12, 
  1938, 
  Turner, 
  1 
  9. 
  

  

  Remarks. 
  — 
  This 
  species 
  is 
  very 
  similar 
  to 
  the 
  Palearctic 
  species 
  M. 
  

   (M.) 
  tessellata 
  (Zetterstedt), 
  1850, 
  which, 
  however, 
  has 
  on 
  the 
  scutel- 
  

   lum 
  four 
  marginal 
  bristles, 
  the 
  ends 
  of 
  which 
  are 
  yellowish, 
  as 
  is 
  the 
  

   median 
  area. 
  The 
  wing 
  markings 
  of 
  tessellata 
  are 
  much 
  more 
  nearly 
  as 
  

   in 
  M. 
  (M.) 
  johannseni, 
  new 
  species. 
  

  

  A 
  male 
  of 
  tessellata 
  from 
  Norfolk, 
  Hatfield, 
  England, 
  was 
  examined 
  

   through 
  the 
  kindness 
  of 
  Paul 
  Freeman 
  of 
  the 
  British 
  Museum 
  (Natural 
  

   History) 
  . 
  The 
  specimen 
  is 
  unsatisfactory 
  for 
  a 
  description 
  of 
  external 
  

   characters, 
  as 
  it 
  was 
  glued 
  to 
  a 
  card 
  when 
  wet. 
  It 
  is 
  noted, 
  however, 
  

   that 
  both 
  the 
  first 
  and 
  second 
  segments 
  of 
  the 
  hind 
  tarsi 
  bear 
  a 
  distal 
  

   pair 
  of 
  spines. 
  The 
  aedeagus 
  of 
  the 
  genitalia 
  consists 
  of 
  a 
  heavily 
  

   sclerotized 
  basal 
  plate 
  about 
  three 
  times 
  as 
  broad 
  as 
  long, 
  bearing 
  a 
  

   small, 
  crescentic, 
  median 
  sclerite 
  on 
  the 
  ventroposterior 
  margin 
  and 
  

   bearing 
  dorsoposteriorly 
  a 
  large, 
  triangular 
  structure 
  with 
  sharp- 
  

   pointed, 
  median 
  apex, 
  and 
  widely 
  flaring, 
  lateral 
  arms 
  articulating 
  with 
  

   inner 
  margins 
  of 
  basistyles. 
  Parameres 
  with 
  slender 
  anterior 
  arms 
  

   connected 
  by 
  a 
  broad, 
  median 
  bridge, 
  the 
  posterior 
  portions 
  simple, 
  

   the 
  basal 
  halves 
  stout, 
  the 
  distal 
  halves 
  very 
  slender 
  and 
  curved 
  ventro- 
  

   cephalad. 
  

  

  According 
  to 
  Tokunaga's 
  (1940) 
  description, 
  his 
  record 
  of 
  tessellata 
  

   from 
  Japan 
  probably 
  refers 
  to 
  an 
  as 
  yet 
  unnamed 
  species. 
  This 
  Jap- 
  

   anese 
  species 
  has 
  the 
  scutellum 
  yellow 
  only 
  in 
  the 
  middle, 
  as 
  in 
  nebulosa, 
  

   which 
  it 
  also 
  closely 
  resembles 
  in 
  wing 
  markings; 
  but 
  the 
  mesonotura 
  

   has 
  distinct 
  yellow 
  spots, 
  the 
  antennae 
  have 
  the 
  distal 
  segments 
  and 
  

   the 
  apices 
  of 
  the 
  basal 
  segments 
  brownish, 
  the 
  legs 
  are 
  yellowish 
  brown 
  

   with 
  dark 
  brown 
  markings, 
  and 
  the 
  dorsum 
  of 
  the 
  abdomen 
  is 
  pale, 
  

   yellowish 
  brown. 
  

  

  The 
  West 
  African 
  species 
  M. 
  (M.) 
  litoraurea 
  Ingram 
  and 
  Macfie, 
  

   1921, 
  (female) 
  and 
  M. 
  (M.) 
  mimas 
  de 
  Meillon, 
  1939, 
  (male) 
  are 
  very 
  

   similar 
  to 
  M. 
  (M.) 
  nebulosa 
  (Coquillett) 
  . 
  The 
  genitalia 
  of 
  mimas 
  are 
  

   the 
  same 
  as 
  those 
  of 
  nebulosa 
  except 
  that 
  the 
  dististyles 
  are 
  abruptly 
  

   bent 
  near 
  the 
  base. 
  

  

  