Ootheca tilmani sp. n.

(Figs 21, 67–70)

Total length. 4.88–6.60 mm (mean: 5.45 mm; n = 5; Fig. 67).

Head. Yellow. Antennae either entirely yellow or terminal four to six antennomeres brownish; length ratios: second to third antennomere 0.60–0.70 (mean: 0.67); third to fourth antennomere 0.83–1.00 (mean: 0.91; Fig. 68). Maximal width of eye to minimal distance between eyes ratio 0.48–0.54 (mean: 0.50).

Thorax. Yellow as for head. Pronotum finely punctuated, latero-basal impression indistinct, width 2.00– 2.40 mm (mean: 2.11 mm); length 1.15–1.40 mm (mean: 1.21 mm); pronotal width to length ratio 1.71–1.83 (mean: 1.75). Elytra broad, bright reddish-brown, punctuation of elytra irregular, coarser than that of pronotum; length 3.90–4.60 mm (mean: 4.03 mm); maximal width of elytra together 2.80–3.60 mm (mean: 3.12 mm); maximal width of elytra together to length of elytron ratio 0.73–0.82 (mean: 0.77). Scutellum, meso-, metathorax and femora yellow. Distal three quarters, in particular the dorsal part of tibia and the tarsi, dark brown to black. Length ratio of basi-metatarsus to metatibia 0.23–0.26 (mean: 0.25).

Abdomen. Yellow to yellowish-brown.

Male genitalia. The median lobe widens slightly in the distal third and has a very small apical protruberance. In lateral view strongly bent ventrally forming a distinct angle of about 50°, apical half very flat in lateral view. Tectum consists of two long, slender, slightly curved and apically outwardly hooked tectorial spurs. Endophallus slender with indistinct apical spines (Fig. 69).

Diagnosis. The colouration is quite distinctive for this species, with the head, pronotum and underside entirely yellow, in contrast with the reddish-brown elytra. The median lobe is slightly enlarged in the apical third, with long, sigmoidally curved tectorial spurs (Fig. 69).

Distribution. Only known from coastal areas of southern Kenya and Tanzania (Fig. 21). Etymology. Named after Sabine Kortenhaus’ son Tilman.

Type material examined. Holotypus: male, “ Mombasa, 3.21, van Someren” / Holotypus Ootheca tilmani Kortenhaus & Wagner, 2010 / AfriGa specimen ID: 1870 specimen data documented 9.II.2010 (NMK; Fig. 70). Type locality: Kenya, Mombasa, 4°03’S / 39°40’E.

Paratypes: Kenya: 4 ex., Mobmasa [sic!], IX.1947, T. H. E. Jackson (NMK); 15 ex., Mombasa, III.1921, van Someren (BMNH). Mozambique: 1 ex., Port. O. Afr., M. Pucii (MNHU). Tanzania: 1 ex., Morogoro, 6°49’S / 37°40’E, Le Moult vend. via Reinbek (ZMUH).