Key to Aliceathrips species

1. Antennae 7-segmented; male with no pore plates on sternites, tergite IX posterior margin with closely placed pair of long curved processes (Figs 11, 12)................................................................. mnestes sp.n.

-. Antennae 8-segmented; male with transverse pore plate on antecostal area of one or more sternites (Fig. 22), tergite IX processes different...................................................................................... 2

2. Antennal segment IV with forked sensorium; maxillary palps 3-segmented (Fig. 7); mesothoracic furca with spinula; male sternite III with pore plate; male tergite IX posterior margin with pair of stout black conical processes (Fig. 4). engaius sp.n.

-. Antennal segment IV with sensorium simple; maxillary palps 2-segmented; mesothoracic furca with no spinula; male sternites III–V or VII each with pore plate; male tergite IX posterior margin different...................................... 3

3. Abdominal tergite X and posterior third of IX dark brown; female with tergite IX median dorsal setae stout, arising close to posterior setal pairs (Fig. 20) [male tergite IX posterior margin with paired processes (Fig. 21)].............. palmeri sp.n.

-. Abdominal tergites IX and X different in colour; female with tergite IX median dorsal setae slender and arising well forward.................................................................................................... 4

4. Abdominal segments IX and X pale, X sometimes with split incomplete; male tergite IX posterior margin with elongate paired processes (Fig. 3)........................................................................... australiensis

-. Abdominal segments IX–X uniformly light brown, with complete split; male tergite IX posterior margin with small setiform processes (Fig. 18)............................................................................ sorghi sp.n.