Trigonopterus manadensis 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/88CD1735-590E-4646-9295-30B0DA2E28AF

taxon LSID

lsid:zoobank.org:act:88CD1735-590E-4646-9295-30B0DA2E28AF

treatment provided by

ZooKeys by Pensoft

scientific name

Trigonopterus manadensis Riedel
status

sp. n.

47. Trigonopterus manadensis Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 47a). Length 2.26 mm. Color of antennae and tarsi ferruginous; remainder black. Body subovate; in profile dorsally convex. Rostrum dorsally with median and pair of submedian ridges; intervening furrows with sparse rows of suberect setae; epistome short, posteriorly with transverse, angulate ridge. Pronotum with weak subapical constriction; disk densely punctate; in apical 1/2 forming broad ridge with impunctate median line; interspaces between punctures subglabrous, subequal to or smaller than punctures´ diameter. Elytra with striae marked by rows of small punctures; stria 8 and 9 along humerus with large, coarse punctures; sutural interval with additional row, other intervals subglabrous, with few interspersed punctures; elytral base weakly costate. Femora with anteroventral ridges ending with small tooth; anterior surface coarsely punctate, each puncture with recumbent yellowish seta. Metafemur with dorsoposterior edge denticulate; subapically with stridulatory patch. Abdominal ventrite 1 and anterior portion of ventrite 2 concave, subglabrous; ventrite 2 posteriorly forming rim; ventrite 5 weakly concave, almost flat; sparsely punctate. Penis (Fig. 47b) with sides of body in basal 1/2 rounded, converging to pointed apex; in profile body of penis markedly curved ventrad; apodemes 2.2 × as long as body of penis; transfer apparatus complex; ductus ejaculatorius without bulbus. Intraspecific variation. Length 2.22-2.36 mm. Female rostrum dorsally punctate-rugose, with median costa; epistome indistinct. Female abdominal ventrite 5 flat, subapically with sparse recumbent scales.

Material examined.

Holotype (MZB): ARC2753 (GenBank # MK260295), N-Sulawesi Prov., Tomohon, Rurukan, Gn. Mahawu, 01°21.409'N 124°51.535'E to 01°21.370'N 124°51.676'E, 1126-1231 m, beaten, 14-V-2012. Paratypes (MZB, SMNK): N-Sulawesi Prov.: 2 exx, ARC2752 (GenBank # MK260294), ARC2760 (GenBank # MK260287), same data as holotype; 10 exx, ARC2765 (GenBank # MK260288), ARC2766 (GenBank # MK260289), Tomohon, Rurukan, Gn. Mahawu, 01°21.697'N 124°51.885'E, 1176 m, 14-V-2012; 8 exx, Gn. Mahawu, Tomohon, 01°20.844'N 124°52.253'E, 1209 m, sifted, 15-V-2012; 7 exx, Tomohon, Rurukan, Gn. Mahawu, 1200 m, beaten, 30-XI-1999; 3 exx, Gn. Mahawu, Tomohon, 01°20.951'N 124°52.207'E, 1230 m, 14-V-2012, sifted; 11 exx, ARC6051 (GenBank # MK260293), ARC6052 (GenBank # MK260286), Gn. Mahawu, Tomohon, 01°20.791'N 124°52.268'E, 1230 m, sifted, 14-V-2012; 1 ex, Gn. Mahawu, Tomohon, 01°20.819'N 124°52.194'E, 1278 m, sifted, 15-V-2012; 1 ex, ARC6048 (GenBank # MK260292), Tomohon, Rurukan, Gn. Mahawu, 01°21.409'N 124°51.535'E, 1166 m, 14-V-2012, sifted; 2 exx, Airmadidi, Gn. Klabat, 01°26.430'N 125°00.622'E, 889 m, sifted, 17-V-2012; 3 exx, Airmadidi, Gn. Klabat, 01°26.505'N 125°00.636'E, 923 m, sifted, 16-V-2012; 5 exx, Airmadidi, Gn. Klabat, 01°26.619'N 125°00.805'E, 1018 m, sifted, 17-V-2012; 3 exx, ARC2789 (GenBank # MK260291), Airmadidi, Gn. Klabat, 01°26.635'N 125°00.823'E, 1031 m, sifted, 16-V-2012; 2 exx, Airmadidi, Gn. Klabat, 01°26.988'N 125°01.244'E, 1392 m, sifted, 17-V-2012; 1 ex, ARC0327 (GenBank # MK260290), Bitung, Gn. Dua Saudara, 01°29.417'N 125°09.150'E, sifted, 25-VI-2006.

Distribution.

N-Sulawesi Prov. (Tomohon, Mt Klabat, Mt Dua Saudara). Elevation 890-1390 m.

Biology.

On foliage in montane forests, rarely in leaf litter.

Etymology.

This epithet is a Latinized adjective based on the town of Manado.

Notes.

Trigonopterus manadensis Riedel, sp. n. was coded as " Trigonopterus sp. 396".