Key to the species of Tropostreptus

The key is valid for adult males only.

1. Metaplica apically with three processes including the long apico-lateral process. Body diameter> 8.5 mm ................ 2

- Metaplica apically with one or two processes including the long apico-lateral process. Body diameter usually <8 mm ...... 3

2. Lateral proplical lobe (lpl) relatively small; antetorsal process (atp) of telopodite curving basad(-laterad) (Figs 14, 15 A)................................................................................................... austerus

- Lateral proplical lobe very large; antetorsal process of telopodite curving basad-mesad (Fig. 15 B)................. severus

3. Apico-lateral process of metaplica strongly reflexed. Body diameter 4.5–6.3 mm ................................... 4

- Apico-lateral process pointing more or less laterad, not reflexed. Body diameter 6.0– 8.8 mm .......................... 5

4. Latero-basad metaplical process blunt; antetorsal process of telopodite long, strongly curved (Fig. 7 E); body diameter 5.4–6.3 mm ............................................................................................ droides

- Latero-basad metaplical process pointed; antetorsal process of telopodite shorter, weakly curved (Fig. 7 F; body diameter 4.5– 4.8 mm ......................................................................................... kipunji

5. Birdhead-shaped process of metaplica (bh) very small, not overreaching lateral proplical lobe (lpl) laterally (Fig. 7 D)................................................................................................ microcephalus

- Birdhead-shaped process longer, overreaching lateral proplical lobe laterally (Figs 7 A–C, 12)........................ 6.

6. Lateral proplical lobe large; antetorsal process of telopodite very long, strongly curved (Figs 7 A,B, 12A)......... hamatus

- Lateral proplical lobe) smaller; antetorsal process of telopodite shorter, sigmoid (Figs 7 C, 12B)............. sigmatospinus