﻿42 
  PROCEEDINGS 
  OP 
  THE 
  NATIONAL 
  MUSEUM 
  vol. 
  67 
  

  

  long 
  as 
  pedicel, 
  tapered 
  posteriorly, 
  not 
  sulcate 
  on 
  dorsum, 
  posterior 
  

   lobe 
  a 
  little 
  shorter 
  than 
  pedicel, 
  tapered 
  anteriorly, 
  about 
  1.5 
  as 
  

   long 
  as 
  wide, 
  with 
  a 
  slight 
  but 
  distinct 
  carina 
  on 
  each 
  side, 
  a 
  sharp 
  

   tubercle 
  near 
  each 
  posterior 
  lateral 
  angle, 
  a 
  pair 
  of 
  very 
  small 
  sub- 
  

   median 
  tubercles 
  behind 
  middle, 
  and 
  a 
  shallow 
  median 
  sulcus 
  an- 
  

   teriorly. 
  Connexivum 
  with 
  prominent 
  angulate 
  flaps 
  on 
  segments 
  

   6 
  and 
  7, 
  eighth 
  tergite 
  longer 
  than 
  ninth, 
  broadly 
  rounded. 
  Fore 
  

   femur 
  slender, 
  the 
  shorter 
  spines 
  distinctly 
  shorter 
  than 
  the 
  femoral 
  

   diameter. 
  Venation 
  of 
  fore 
  and 
  hind 
  wings 
  as 
  in 
  figures 
  47 
  and 
  

   53, 
  respectively. 
  

  

  Male. 
  — 
  Anterior 
  lobe 
  of 
  pronotum 
  a 
  little 
  less 
  than 
  half 
  as 
  long 
  

   as 
  pedicel, 
  the 
  fore 
  legs 
  longer 
  and 
  more 
  slender 
  than 
  in 
  female, 
  the 
  

   abdomen 
  more 
  extended 
  beyond 
  apices 
  of 
  wings, 
  with 
  the 
  apical 
  ter- 
  

   gite 
  tapering 
  to 
  tip, 
  where 
  it 
  is 
  rounded, 
  its 
  basal 
  width 
  about 
  three- 
  

   fourths 
  as 
  great 
  as 
  its 
  median 
  length, 
  the 
  hypopygial 
  claspers 
  curved, 
  

   moderately 
  stout 
  and 
  hairy, 
  hind 
  margin 
  of 
  hypopygium 
  with 
  a 
  cen- 
  

   tral 
  erect 
  pale 
  spike 
  broad 
  at 
  base. 
  

  

  Length, 
  13-20 
  mm. 
  

  

  Holotype. 
  — 
  Female. 
  Cayamas, 
  Cuba. 
  March 
  14, 
  E. 
  A. 
  Schwarz. 
  

   Allotype, 
  male, 
  Uhler 
  Collection 
  (U. 
  S. 
  Nat. 
  Mus.) 
  ; 
  para 
  type, 
  

   female, 
  much 
  broken, 
  without 
  data 
  (Bueno). 
  

  

  Type 
  and 
  allotypt 
  .—Cat. 
  No. 
  26711. 
  U.S.N 
  .M. 
  

  

  Subgenus 
  Myiagreutes 
  Bergroth. 
  

  

  Myiagreutes 
  Bergroth, 
  E. 
  New 
  neotropical 
  Ploeariinae, 
  Psyche, 
  vol. 
  18, 
  

   1911, 
  pp. 
  15-16. 
  [Monobasic, 
  type 
  species, 
  M. 
  praecellens, 
  new 
  species.] 
  

  

  KEY 
  TO 
  THE 
  SPECIES. 
  

  

  1. 
  Hind 
  margin 
  of 
  pronotum 
  with 
  three 
  long 
  slender 
  spines; 
  more 
  than 
  four 
  

   outstanding 
  spines 
  present 
  on 
  postero-ventral 
  surface 
  of 
  fore 
  femur, 
  the 
  

   distance 
  between 
  them 
  distinctly 
  less 
  than 
  the 
  length 
  of 
  fore 
  tarsus. 
  

  

  praecellens 
  (Bergroth) 
  (p. 
  42). 
  

   Hind 
  margin 
  of 
  pronotum 
  without 
  long 
  spines, 
  only 
  indistinct 
  rounded 
  eleva- 
  

   tions 
  present 
  ; 
  four 
  outstanding 
  spines 
  present 
  in 
  the 
  postero-ventral 
  series 
  

   on 
  fore 
  femur, 
  the 
  distance 
  between 
  them 
  equal 
  to 
  or 
  greater 
  than 
  the 
  

   length 
  of 
  fore 
  tarsus 
  minor, 
  new 
  species 
  (p. 
  43). 
  

  

  EMESA 
  (MYIAGREUTES) 
  PRAECELLENS 
  (Gergroth). 
  

  

  Myuif/reulcH 
  praecellens 
  Bergroth, 
  E. 
  New 
  neotropical 
  Ploeariinae, 
  Psyche, 
  

   vol. 
  18, 
  pp. 
  16-17 
  [French 
  Guiana]. 
  

  

  Female. 
  — 
  Black, 
  variegated 
  with 
  brown 
  and 
  with 
  yellowish 
  white 
  

   markings. 
  Base 
  and 
  apex 
  of 
  first 
  antennal 
  segment 
  whitish; 
  beak 
  

   annulated. 
  Thoracic 
  thorns, 
  more 
  or 
  less 
  of 
  sides, 
  hind 
  margin 
  of 
  

   prothorax 
  and 
  sometimes 
  two 
  vittae 
  connected 
  thereto, 
  disk 
  of 
  me- 
  

   sonotum, 
  four 
  marks 
  on 
  anterior 
  margin 
  of 
  posterior 
  lobe 
  of 
  pro- 
  

   thorax, 
  and 
  a 
  spot 
  above 
  each 
  of 
  the 
  fore 
  and 
  mid 
  coxae 
  yellowish 
  

  

  