Trigonopterus kolakensis Riedel

Riedel, Alexander & Narakusumo, Raden Pramesa, 2019, One hundred and three new species of Trigonopterus weevils from Sulawesi, ZooKeys 828, pp. 1-153 : 1

publication ID

https://dx.doi.org/10.3897/zookeys.828.32200

publication LSID

lsid:zoobank.org:pub:2A63A74D-8B30-4C83-AB74-7BAF6AF6984E

persistent identifier

https://treatment.plazi.org/id/9353BAB1-AC67-489C-B832-CFD6C6227D1C

taxon LSID

lsid:zoobank.org:act:9353BAB1-AC67-489C-B832-CFD6C6227D1C

treatment provided by

ZooKeys by Pensoft

scientific name

Trigonopterus kolakensis Riedel
status

sp. n.

39. Trigonopterus kolakensis Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 39a). Length 2.65 mm. Color of antennae and legs ferruginous; remainder black. Body elongate; in dorsal aspect with distinct constriction between pronotum and elytron; in profile dorsally convex. Rostrum dorsally with median carina and pair of submedian ridges; intervening furrows with rows of erect elongate scales; epistome short, posteriorly with transverse, subangulate ridge, medially with denticle. Pronotum with disk densely punctate; interspaces between punctures subglabrous, subequal to or smaller than punctures´ diameter. Elytra densely irregularly punctate with small punctures; along basal margin and humeri with punctation more densely; striae marked by fine hairlines; apex subtruncate, with sparse scales. Femora of meso- and metafemur with anteroventral ridges crenate, ending with small tooth; anterior surface coarsely punctate, reticulate, each puncture with long subclavate scale. Metafemur with dorsoposterior edge serrate; subapically with stridulatory patch. Dorsal edge of tibiae denticulate, subbasally with distinct tooth. Abdominal ventrites 1-2 medially flat, subglabrous; ventrite 5 flat, coarsely punctate. Penis (Fig. 39b) with sides of body subparallel, slightly diverging; apex bisinuate, with sparse short setae; apodemes 2.5 × as long as body of penis; transfer apparatus complex; ductus ejaculatorius without bulbus. Intraspecific variation. Length 1.98-2.83 mm. Female rostrum more slender, dorsally punctate-rugose; epistome indistinct.

Material examined.

Holotype (MZB): ARC3159 (EMBL # LN884967), SE-Sulawesi Prov., Kolaka, km 45 on Kendari-road, Talodo village, 04°00.686'S 121°50.198'E, 515 m, sifted, 20-IV-2013. Paratypes (MZB, SMNK, ZSM): SE-Sulawesi Prov., Kolaka, km 45 on Kendari-road, Talodo village: 54 exx, ARC3160 (GenBank # MK260439), ARC3161 (GenBank # MK260438), same data as holotype; 40 exx, ARC3162 (GenBank # MK260437), 04°00.763'S 121°50.175'E, 471 m, sifted, 20-IV-2013; 4 exx, 04°00.673'S 121°49.869'E, 565 m, sifted, 20-IV-2013.

Distribution.

SE-Sulawesi Prov. (Kolaka). Elevation 470-565 m.

Biology.

In leaf litter of lowland forest.

Etymology.

This epithet is a Latinized adjective based on the type locality.

Notes.

Trigonopterus kolakensis Riedel, sp. n. was coded as " Trigonopterus sp. 482".