Tillus zambiensis, ., 2022

Tillus zambiensis sp. n.

( Fig. 6)

ZooBank:http://zoobank.org/683AA80B-2498-4371-A441-D2BE6E0D6DE3

Holotype, ♀. – Zambia, 150 km South of Kasempa, leg. Wachtel, 11.11.02 ( RGCM) .

Paratypes. ♀♀. – Zambia NW, E of Chisasa , W of Solwezi , 24.10.2008, lgt. Snížek (2 ex. RGCM, 2 ex. ISNB). Zambia NW, NW Kasempa , E of Mutumbwa , 5.11.2008, lgt. Snížek ( 1 ex. ISNB).

Description

Diagnosis. – Tillus zambiensis sp. n. specimens can be identified by its typical coloration: the whole beetle is black, except the head and the first two antennomeres, which are red brown.

Length. – 8.17-9.58 mm (6 specimens measured).

Head. – Head including eyes wider than pronotal anterior margin, red brown, glossy, with very fine and diffuse punctation; in front of eyes with short, light, anteriorly directed hairs, behind eyeswith longer, brown hairs, not so dense. Eyes protruding, eye width 0.28-0.37 mm, eye distance 0.82-0.92 mm, index 2.49-2.93. Antennae black, except A1 and mostly A2, which are red brown, short, stout, scarcely reaching base when extended backwards; from A5 dilated distally, from A6 broader than long, from A5 onwards with dense, short, light pubescence. A1 nearby ocular notch, antennal ridge pulling backwards towards outer eye margin.

Pronotum. – Conspicuously longer than wide, slightly dilated anteriorly and posteriorly, slightly sinuate before middle (l = 1.76-2.02 mm, w = 1.24-1.50 mm, length to width index 1:1.35-1.42), anterior transverse depression not distinct;withfine, diffuse, but distinct punctation, central part slightly wrinkled, glossy, with long, light, erect, more-or-less dense hairs.

Scutellum . – Elliptic, with coarse punctation and wrinkles.

Elytra . – Elytral base not margined, elytral base narrow (l = 5.75-6.67 mm, w = 2.72-3.44 mm, width to length index 1: 1.77-2.11), ventricously dilated towards apex, apices separately rounded; elytral punctation appears to be ordered in rows, but due to small punctation in between makes an irregular impression, punctation dense and conspicuous, almost reaching apex. First third with not very dense, light, erect hairs, hairs more dense towards apex and directed posteriorly.

Legs. – Short, stout, protibiae slightly curved, meso- and metatibiae almost straight, tibial spurs short, stout, tibiae without carina; legs with long, light, more-or-less dense, erect hairs.

Lower surface. – Prosternal process narrow, long, slightly dilated distally, stronglyconnected withhypomera, hypomera strong, flattened, pointed, but not very acute, prosternal coxal cavities closed. Mesoventrite straight, without anterior mesoventral process. Predominantely black brown, pro- and meso coxae as well asmiddle of mesoventrite dark brown, glossy, sides of abdominal ventrites also dark brown, central part of ventrite 5 brown black, rest yellow brown, ventrite 6 yellow brown, posterior margin straight to very slightly emarginated.With short, more-or-less depressed, not very dense, light hairs.

Distribution. – Only known from Zambia.

Etymology. – The specific epithet, zambiensis , refers to the country Zambia, where the type specimens were collected.

Remarks. – Male specimens are unknown for this species.