Trigonopterus scitulus 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/A4B1DA07-7FAD-4A7F-AED2-C32E9CED6A31

taxon LSID

lsid:zoobank.org:act:A4B1DA07-7FAD-4A7F-AED2-C32E9CED6A31

treatment provided by

ZooKeys by Pensoft

scientific name

Trigonopterus scitulus Riedel
status

sp. n.

87. Trigonopterus scitulus Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 87a). Length 2.26 mm. Color of antennae, tibiae, tarsi and rostrum ferruginous; femora dark ferruginous to black; remainder black. Body subovate; in profile dorsally convex, with distinct constriction between pronotum and elytron. Rostrum dorsally with median subglabrous carina, pair of submedian ridges indistinct; with sparse rows of erect piliform yellow scales; epistome short, subglabrous. Pronotum subglabrous, at middle, subapically and laterally with sparse coarse punctures; subapically with sparse yellowish narrow suberect scales. Elytra subglabrous, with sparse minute punctures, striae obsolete; with sparse recumbent yellowish scales near base, on sutural interval and subapically. Femora edentate; anteroventral ridge distinct, simple. Metafemur with dorsoposterior ridge denticulate, subapically without stridulatory patch, anterior surface coarsely rugose-punctate, each puncture with narrow recumbent scale. Abdominal ventrites 1-2, fused, weakly concave, subglabrous; ventrite 5 with distinct depression, sublaterally with sparse erect piliform scales. Penis (Fig. 87b) with sides of body subparallel, apex subangulate, with sparse short setae; apodemes 2.1 × as long as body of penis; transfer apparatus simple, spiniform; ductus ejaculatorius with indistinct bulbus. Intraspecific variation. Length 2.06-2.26 mm. Female unknown.

Material examined.

Holotype (MZB): ARC2788 (GenBank # MK260393), N-Sulawesi Prov., Airmadidi, Gn. Klabat, 01°26.635'N 125°00.823'E, 1031 m, sifted, 16-V-2012. Paratype (SMNK): 1 ex, ARC2802 (EMBL # LT603141), N-Sulawesi, Airmadidi, Gn. Klabat, 01°26.619'N 125°00.805'E, 1018 m, sifted, 17-V-2012.

Distribution.

N-Sulawesi Prov. (Gn. Klabat). Elevation ca. 1020-1030 m.

Biology.

In leaf litter of montane forest.

Etymology.

This epithet is the Latin adjective scitulus, -a, -um (neat).

Notes.

Trigonopterus scitulus Riedel, sp. n. was coded as " Trigonopterus sp. 422".