a

b

c

1A

Mesonotum,scutellum and propodeum with a shallow, longitudinal median sulcus (fig. a). Eyes not surrounded by an orbital carina (fig. b). Fore wing with two cubital cells (fig. c) ...............................  Megalyra

One introduced species in South Africa: Megalyra fasciipennis  

a

b

c

1B

Mesonotum with a longitudinal median sulcus (fig. a). Eyes surrounded by an orbital carina (fig. b). Fore wing with one or two cubital cells (fig. c)................................................................................... 2

a

2A

Fore wing with one cubital cell; 1st and 2nd cross veins absent; radial vein reduced, radial cell open; recurrent vein present (fig. a) ...................................................................................................  Megalyridia

Monotypical genus: Megalyridia capensis restricted to extreme south-western area of Western Cape Province (South Africa)

a

2B

Fore wing with two cubital cells and one closed radial cell; recurrent vein absent (fig. a) .....  Dinapsis

Five species: one from South Africa and four from Madagascar. Key to species