Capezoum brunneopunctatus, Maquart & Vitali & Bate, 2021

Maquart, Pierre-Olivier, Vitali, Francesco & Bate, Riana, 2021, A review of Capezoum Adlbauer, 2003 (Coleoptera: Cerambycidae) with the description of two new species from the Succulent Karoo ecosystem in South- Africa, Zootaxa 4915 (4), pp. 559-566 : 563

Capezoum brunneopunctatus sp. nov.

Fig. 3 .

Type material. HOLOTYPE male, South Africa: N Cape, Waliekraai, c. 19.5 Km ESE, Hondeklip Bay , 30°22’10’’S, 17°29’41’’E, 4.I.2019, Light Trap, M.D. & J.M. Bate legs. [ ARC-PPI National Collection of Insects, Pretoria, South-Africa].

Measurements (mm). HOLOTYPE: Body length: 13 (11.6 to elytral apex); antennal length: 10.3; scape length: 0.86; head length: 1.5; head width: 2.4; pronotal length: 1.95; pronotal width: 2.2; elytral length: 7.9; humeral width: 3.2.

Description. Head. Integument brownish. Frons and vertex flat, quadrate, densely and uniformly punctate, covered with dense pubescence; genae deeply punctate, apex shallow but pointing forward. Anterior part of the head slightly shrinking. Antennal tubercles flat and widely spaced. Antennae 11-segmented, reaching the elytra apex (male), testaceous, somewhat lighter to the apex, sparsely covered with a fine pubescence, finely and densely punctate and bearing a few yellowish longer setae, mainly at the apex and on the inner side of antennomeres III–IV. Scape testaceous, densely and coarsely punctate, with scarce long setae. Antennomere III almost flattened, feebly wider at its apex, slightly longer than IV but shorter than the other antennomeres. Antennomeres IV–X dentate at outer apex.

Thorax. Pronotum testaceous, quadrate, slightly wider at the middle; disc uneven, sparsely and deeply punctate, with long setae and a fringe of short whitish setae along the apical margin. Scutellum testaceous, surface micro-sculptured, distinct punctuation lacking. Prosternum, metaventrite, and metacoxae densely and deeply punctate, with long setae.

Elytra yellowish testaceous, restricted at their two-thirds (clearer in the middle for C. museiconfluentiarium ), rounded at apex, surface uniformly, densely and deeply punctate, with long yellowish setae.

Abdomen. Integument yellowish, densely and deeply punctate, with long yellowish setae. Abdominal sternites 1 to 4 sub-equal in length. Last abdominal segment elongated, almost parallel-sided, densely pubescent and exceeding the elytra coverage.

Legs. Fore legs inserted at the first third of the thorax. Femora and tibiae deeply and densely punctate, bearing long yellowish setae; femora densely fringed with oblique setae along the internal margin. Tarsomere I long, equivalent in length to the segments II and III combined.

Male terminalia: Aedeagus yellow ( Fig. 3c ); median lobe (penis) about 1 mm long, parallel-sided, bluntly pointed apically. Tegmen about 1.2 mm long; parameres parallel-sided, fused together for two-thirds of their length, dorsally feebly convex, slightly but evidently arched, densely covered with fine setae at the apex; ringed part twice as long as root, forming a 45° angle, elongated, laterally constricted, posteriorly converging and united at the tip.

Female unknown.

Etymology: The species epithet indicates the brownish punctures on the elytra.

Distribution: Succulent Karoo ecosystem, Northern Cape, South-Africa ( Fig. 1 ).

Taxonomic discussion of C. brunneopunctatus sp. nov: With similar observations to C. richardi sp. nov., this new species belongs to the genus Capezoum . C. brunneopunctatus sp. nov. differs from the other known species by its head brownish, with deeply punctate genae; its elytra yellowish testaceous opaque, restricted at their two-thirds and covering the abdomen; its antennae almost reaching the elytral apex, with testaceous scape and with the antennomere III a bit longer than IV but shorter than the other antennomeres.

Figures

FIGURE 1. Location of the different species of Capezoum. Map drawn with QGIS 3.6, biomes for Namibia and South Africa incorporated.

FIGURE 3. Capezoum brunneopunctatus sp. nov., holotype. a) dorsal habitus, male, b) ventral habitus, male, c) genitalia, male.