﻿142 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  ^°^- 
  "^ 
  

  

  erroneously 
  included 
  a 
  California 
  record 
  of 
  maculipennis 
  and 
  also 
  

   cited 
  several 
  eastern 
  records 
  of 
  this 
  species 
  in 
  error. 
  I 
  have 
  now 
  

   studied 
  the 
  hieroglyphica 
  group 
  more 
  intensively 
  and 
  believe 
  I 
  have 
  

   correctly 
  identified 
  several 
  component 
  species 
  on 
  the 
  basis 
  of 
  male 
  

   genitalia 
  supported 
  by 
  several 
  rather 
  difficult 
  but 
  constant 
  external 
  

   characters 
  of 
  the 
  female. 
  In 
  addition 
  to 
  hieroglyphica 
  and 
  maculi- 
  

   pennis 
  there 
  appear 
  to 
  be 
  four 
  or 
  more 
  undescribed 
  species 
  in 
  this 
  

   complex. 
  Although 
  my 
  California 
  specimen 
  and 
  that 
  reported 
  as 
  

   Monohelea 
  sp. 
  by 
  Johannsen 
  (1943) 
  do 
  not 
  fit 
  any 
  of 
  those 
  described 
  

   below, 
  probably 
  falling 
  closest 
  to 
  hieroglyphica 
  in 
  wing 
  markings, 
  a 
  

   positive 
  diagnosis 
  of 
  the 
  species 
  must 
  await 
  the 
  collection 
  of 
  the 
  male. 
  

  

  4. 
  Monohelea 
  (Monohelea) 
  lanei, 
  new 
  species 
  

  

  Figures 
  18, 
  b, 
  j; 
  19, 
  e 
  

  

  Description. 
  — 
  Female: 
  Length 
  1.3 
  mm., 
  wing 
  1.1 
  mm. 
  by 
  0.4 
  mm. 
  

   As 
  in 
  M. 
  (M.) 
  maculipennis 
  (Coquillett), 
  but 
  darker 
  and 
  slightly 
  

   larger. 
  Mesonotum 
  light 
  brown 
  pruinose 
  with 
  faint 
  brown 
  punctures; 
  

   scutellum 
  brownish 
  in 
  middle. 
  Markings 
  on 
  hind 
  legs 
  stronger; 
  

   basal 
  third 
  of 
  hind 
  femur 
  brown, 
  a 
  narrow, 
  diagonal 
  band 
  just 
  past 
  

   middle, 
  then 
  a 
  small, 
  brown, 
  ventral 
  spot 
  and 
  a 
  strong 
  preapical 
  band; 
  

   basal 
  and 
  median 
  bands 
  on 
  hind 
  tibia 
  broad 
  and 
  joined 
  on 
  ventral 
  side, 
  

   the 
  distal 
  band 
  broad. 
  Proportions 
  of 
  segments 
  of 
  hind 
  leg 
  as 
  in 
  

   table 
  1. 
  

  

  Wing 
  markings 
  darker 
  and 
  more 
  extensive 
  than 
  in 
  maculipennis, 
  

   the 
  omega-shaped 
  mark 
  entirely 
  closed 
  behind 
  by 
  a 
  broad 
  extension 
  

   of 
  the 
  mesal 
  band, 
  the 
  X-shaped 
  mark 
  in 
  cell 
  R5 
  greatly 
  constricted 
  in 
  

   middle 
  and 
  much 
  broader 
  behind. 
  Macro 
  trichiae 
  sparse 
  and 
  con- 
  

   fined 
  to 
  wing 
  margin; 
  first 
  radial 
  cell 
  about 
  two-thirds 
  as 
  long 
  as 
  

   second. 
  

  

  Abdomen 
  brown 
  above, 
  yellowish 
  on 
  sides 
  in 
  front 
  and 
  on 
  three 
  

   distal 
  segments. 
  Spermathecae 
  two, 
  large, 
  very 
  unequal 
  and 
  sub- 
  

   spherical. 
  

  

  Male: 
  Ninth 
  sternite 
  with 
  posterior 
  margin 
  convex 
  in 
  middle, 
  

   spiculate; 
  ninth 
  tergite 
  tapered 
  to 
  a 
  pair 
  of 
  blunt, 
  triangular, 
  sub- 
  

   median, 
  caudal 
  lobes. 
  Basistyles 
  narrow, 
  nearly 
  straight; 
  dististyles 
  

   slender, 
  curved, 
  with 
  sharp, 
  incurved 
  points. 
  Aedeagus 
  with 
  basal 
  

   halves 
  broadly 
  separated 
  by 
  a 
  deep 
  notch 
  in 
  middle 
  of 
  anterior 
  margin, 
  

   lateral 
  sclerites 
  with 
  broad, 
  triangular 
  bases, 
  the 
  slender, 
  pointed, 
  

   posterior 
  portions 
  directed 
  caudomesad 
  and 
  meeting 
  each 
  other 
  over 
  

   tips 
  of 
  a 
  pair 
  of 
  sharp-pointed, 
  dorsal 
  processes. 
  Parameres 
  a 
  pair 
  

   of 
  irregular, 
  sublateral 
  sclerites 
  joined 
  by 
  an 
  indistinct 
  transverse 
  

   bridge 
  at 
  a 
  third 
  of 
  the 
  distance 
  from 
  bases; 
  basal 
  apodemes 
  trilobed, 
  

   directed 
  laterocephalad 
  to 
  bases 
  of 
  basistyles; 
  posterior 
  portions 
  with 
  

   subparallel 
  inner 
  margins, 
  tips 
  each 
  with 
  apical, 
  knoblike, 
  sclerotized 
  

   lobe 
  with 
  slightly 
  longer, 
  flattened, 
  roundly 
  flaring, 
  ventral 
  expansions. 
  

  

  