Pentamerica, 2021

Meregalli, Massimo, Borovec, Roman, Cervella, Piero, Santovito, Alfredo, Toševski, Ivo, Ottati, Sara & Nakládal, Oto, 2021, The Namaini, a new weevil tribe with six new genera from South Africa (Coleoptera: Curculionidae: Entiminae), Zoological Journal of the Linnean Society 193, pp. 95-123 : 108

PENTAMERICA BOROVEC & MEREGALLI , GEN. NOV.

Z o o b a n k r e g i s t r a t i o n: u r n: l s i d: z o o b a n k. org:act: A67A110A-640A-4293-A658-DA4849C7C4D 8 Type species: Nama pentamera Borovec & Meregalli, 2013: p.506 , here designated ( Figs 7, 10E, L, S, 11E, L, S).

Diagnostic description: Very small Namaini 1.7– 2.1 mm long; rostrum short and wide with epifrons conspicuously tapered apicad with straight sides; frons large, occupying almost apical half of rostrum, glabrous, matt; epistome hardly visible; gena and subgena glabrous, smooth; antennal sockets in dorsal view reniform, well visible, in lateral view short, subtriangular, not reaching eyes, with ventral margin directed to dorsal margin of eyes; scapes in apical twothirds conspicuously thickened, widest before apex; funicles 5-segmented; procoxal cavities placed closer to anterior margin of prosternum; protibiae widest at basal third and slightly evenly tapered anteriad, at apex not enlarged outside or inside; apical surface of metatibiae glabrous; ventrites glabrous; suture between ventrites 1 and 2 arched; tegmen with short basally connected parameres; female sternite VIII with apodeme long and terminating inside of plate; plate lengthened apically to well sclerotized process, distinctly constricted before tip; gonocoxites with tip well sclerotized, slightly curved and sharpened, lacking styli.

Etymology: The name is derived from Greek πέντε, five, and μερίς, part. The species belonging to this genus appear to be characterized by the antennal funicle composed of five segments, hence the name. The gender is feminine.

Included taxa and distribution: In addition to the type species, Pentamerica pentamera ( Borovec & Meregalli, 2013) comb. nov., only one more taxon is included in the genus, based on the mt-Cox1 analysis and its morphology. The two species are known from South Africa: Northern Cape, Richtersveld National Park ( Fig. 13) .