Key to genera of Clavigerodina of Madagascar with 3-segmented antennae

1 Antennae robust, terminal antennal segment at base as wide as at apex.......................................... 2

- Antennae slender, terminal antennal segment narrowed at base or pedunculate, expanded apically..................... 3

2 Elytra lacking trichomes, composite tergite glabrous, antennae cylindrical......................... Fustigerodes Raffray

- Elytra with long, thin trichomes in posterior corner, antennae depressed, flat...................... Platycerodes Jeannel

3 Fore body roughly punctured, elytra with various types of carinae or rows of setae................ Novofustiger Wasmann

- Fore body glabrous, elytra lacking carinae or striae, at most with very fine puncturation............................. 4

4 Elytra lacking trichomes, posterior corners with 3 setae, first paratergites projecting lateraly, bearing small trichome.......................................................................................... Triceratomerus Jeannel

- Elytra with well-defined trichomes near posterior corner, first paratergites not projecting laterally, bearing large, dense trichome............................................................................................. 5

5 Antebasal and lateral pronotal foveae present, terminal antennomere evenly extended from base to apex.................................................................................................... Nearticerodes Jeannel

- Pronotum lacking foveae, terminal antennomere pedunculated in basal half, strongly expanded at apex.................................................................................................... Ambohitantella g. nov.