Key to species of Crambomorphus

1. Taxa from Africa...................................................................................... 2

- Taxa from Madagascar................................................................................. 5

2. Wings lanceolate (Figs 40, 41, 75)................................................... C. karrooanus (Péringuey) .

- Wing with hind margins sinuate.......................................................................... 3

3. Hind margin of forewing with acute protuberance (Figs 29, 30, 74); posterior margin of pronotum black..................................................................................................... C. namibicus sp. nov.

- Hind margin of forewing with sinuation smooth (e.g. Figs 2, 72)................................................ 4

4. Wings narrow with acute apices (Figs 16, 17, 73); stripe along posterior margin of forewing narrow (Figs 16, 17)..........

.................................................................................. C. kalaharicus sp. nov. - Wings broader, tips not as acute as in C. kalaharicus (see Figs 1, 3, 4, 72); stripe along posterior margin of forewing broad (Figs 1, 2, 3); thorax densely hirsute (Figs 3, 72)............................................. C. sinuatus (Olivier) . 5. Wings lanceolate (Figs 53, 54)............................................. C. madagascariensis (van der Weele) .

- Wing hind margins sinuate (Fig. 63)................................................ C. grandidieri van der Weele.