Key to genera of Australian Apalochrini based on male.

1 Fore tarsomere 2 simple, without dense apical comb.......................................................... 2

- Fore tarsomere 2 prolonged dorsally, with dense apical comb.................................................. 3

2 Body uniformly black, fore tibiae distinctly curved, fore tarsi distinctly 5-segmented............................. Laius

- Body with colour pattern, fore tibiae simple, fore tarsi 4-segmented or with tarsomere 2 reduced and smaller than adjacent segments....................................................................................... Notointybia

3 Antenna biserrate, apical three abdominal segments exposed............................................ Salsolaius

- Antenna filiform, serrate or flabellate; abdomen not apically exposed............................................ 4

4 Antennomere 3 strongly dilated and modified............................................................... 5

- Antennomere 3 simple, not modified...................................................................... 7

5 Antennomeres 3–11 flabellate................................................................. Flabellolaius

- Antennomeres 3–11 filiform or only slightly serrate.......................................................... 6

6 Fore femora not or weakly excavated subapically, with a row of lightly-coloured straight hairs above the excavation.................................................................................................. Dicranolaius

- Fore femora strongly excavated subapically, without hairs........................................... Australolaius

7 Pronotum with apical median process, head and pronotum with distinct concavities......................... Troglolaius

- Head and pronotum simple....................................................................... Simoderus