Figure above :  Wing-venation of a number of representatives of the family Clythiidae  ( = Platypezidae) ( Brachycera-cyclorrapha).
      Reading from left to right and from top to bottom :
      240 -- Platypezina  connexa WAHLB.
      241 -- Clythia  fasciata MEIG.
      242 -- Callimyia  speciosa MEIG.
      243 -- Platycnema  pulicaria ZETT.
      244 -- Microsania  pectinipennis MEIG.
      245 -- Opetia  nigra MEIG.