Tanytydeus

Key to species of the genus Tanytydeus

(T. neocristatus Kandeel and Hoda, 1984 and T. amabilis (Kandeel, 1992) are not included in the key due to their incomplete description).

1. Adults with three pairs of genital acetabulae............................................................... 2

- Adults with two pairs of genital acetabulae................................................................ 6

2. Genu I with six simple setae............................................................................3

- Genu I with seven simple setae.......................................................................... 4

3. Femur and genu II with two setae each, tarsus III with five setae....... T. simplex (Delfinado and Baker, 1974) comb. nov.

- Femur and genu II with three setae each, tarsus III with six setae.................. T. lamington Seeman and Walter, 1999

4. Genu II with four setae, genu IV with three setae............................................................ 5

- Genu II with three setae, genu IV with two setae..................................... T. cristatus Theron et al., 1969

5. Genital area with 8–10 pairs of genital setae; idiosomal length 550–685; dorsal setae lengths: c 1 23–29, c 2 38–43, d 24–30, e 21–28.................................................. T. beyzavii Khanjani, Nadri, Khanjani and Seeman, 2014

- Genital area with 6–7 pairs of genital setae, idiosomal length 455; dorsal setae lengths: c 1 15, c 2 24, d 14, e 15.................................................................................... .. T. kakadu Seeman and Walter, 1999

6. Genu I with seven simple setae, genu II with three setae, genu IV with two setae, seta l” of tibia I eupathidion-like, seta p’ of tarsus II simple, with three pairs of aggenital and two pairs of genital setae in adults................................7

- Genu I with six simple setae, genu II with two setae, genu IV with one seta, seta l” of tibia I simple, seta p’ of tarsus II eupathidion-like, with 6–7 pairs of aggenital and three pairs of genital setae in adults.................. cubanus sp. nov.

7. Idiosomal setae longer (sci 46, sce 17, c 2 26, 2 a 26, 2 b 24, 3 a 33, 3 b 19), seta k of tibia I pointed, all setae on trochanter, femur, genu and tibia II pointed..................................................... T. cf. aegyptiacus (Soliman, 1974)

- Idiosomal setae shorter (sci 25–28, sce 8–9, c 2 14–16, 2 a 13–14, 2 b 11, 3 a 13, 3 b 9), seta k of tibia I blunt-ended, all setae on trochanter, femur, genu and tibia II blunt-ended............................................... T. kethleyi sp. nov.