Trigonopterus nitidulus

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This page should be cited as follows (rationale):
Riedel A, Narakusumo R (2019) One hundred and three new species of Trigonopterus weevils from Sulawesi. ZooKeys (828) : 1–153, doi. Versioned wiki page: 2019-04-19, version 175804, https://species-id.net/w/index.php?title=Trigonopterus_nitidulus&oldid=175804 , contributors (alphabetical order): Pensoft Publishers, Alexander Riedel.

Citation formats to copy and paste

BibTeX:

@article{Riedel2019ZooKeys,
author = {Riedel, Alexander AND Narakusumo, Raden Pramesa},
journal = {ZooKeys},
publisher = {Pensoft Publishers},
title = {One hundred and three new species of Trigonopterus weevils from Sulawesi},
year = {2019},
volume = {},
issue = {828},
pages = {1--153},
doi = {10.3897/zookeys.828.32200},
url = {https://zookeys.pensoft.net/articles.php?id=32200},
note = {Versioned wiki page: 2019-04-19, version 175804, https://species-id.net/w/index.php?title=Trigonopterus_nitidulus&oldid=175804 , contributors (alphabetical order): Pensoft Publishers, Alexander Riedel.}

}

RIS/ Endnote:

TY - JOUR
T1 - One hundred and three new species of Trigonopterus weevils from Sulawesi
A1 - Riedel A
A1 - Narakusumo R
Y1 - 2019
JF - ZooKeys
JA -
VL -
IS - 828
UR - http://dx.doi.org/10.3897/zookeys.828.32200
SP - 1
EP - 153
PB - Pensoft Publishers
M1 - Versioned wiki page: 2019-04-19, version 175804, https://species-id.net/w/index.php?title=Trigonopterus_nitidulus&oldid=175804 , contributors (alphabetical order): Pensoft Publishers, Alexander Riedel.

M3 - doi:10.3897/zookeys.828.32200

Wikipedia/ Citizendium:

<ref name="Riedel2019ZooKeys">{{Citation
| author = Riedel A, Narakusumo R
| title = One hundred and three new species of Trigonopterus weevils from Sulawesi
| journal = ZooKeys
| year = 2019
| volume =
| issue = 828
| pages = 1--153
| pmid =
| publisher = Pensoft Publishers
| doi = 10.3897/zookeys.828.32200
| url = https://zookeys.pensoft.net/articles.php?id=32200
| pmc =
| accessdate = 2019-10-15

}} Versioned wiki page: 2019-04-19, version 175804, https://species-id.net/w/index.php?title=Trigonopterus_nitidulus&oldid=175804 , contributors (alphabetical order): Pensoft Publishers, Alexander Riedel.</ref>

See also the citation download page at the journal.


Taxonavigation

Ordo: Coleoptera
Familia: Curculionidae
Genus: Trigonopterus

Name

Trigonopterus nitidulus Riedel sp. n.Wikispecies linkZooBank linkPensoft Profile

Diagnostic description

Holotype, male (Fig. 55a). Length 2.50 mm. Color of antennae, tibiae, and tarsi ferruginous; remainder black. Body subovate; in profile dorsally convex. Rostrum dorsally with median and pair of submedian ridges; behind epistome scabrous; with sparse rows of erect, subclavate scales; epistome posteriorly with transverse, angulate ridge. Pronotum with disk densely punctate; dorsally punctures small; interspaces between punctures subglabrous; laterally punctures coarse. Elytra with striae marked by small punctures and weakly impressed lines, subapically more deeply entrenched; stria 8 along humerus with large, coarse punctures; intervals subglabrous; subapically profile of ventral margin crenate. Femora edentate; anterior surface coarsely punctate, each puncture with recumbent scale. Metafemur with dorsoposterior edge denticulate; subapically with stridulatory patch. Abdominal ventrites 1–2 concave, subglabrous; ventrite 5 flat, microgranulate, dull. Penis (Fig. 55b) with sides of body subparallel, converging to subtriangular apex; subapically with sparse setae; dorsally with patches of setae pointing to midline; apodemes 1.4 × as long as body of penis; transfer apparatus flagelliform, ca. 1.2 × longer than body; ductus ejaculatorius with indistinct bulbus. Intraspecific variation. Length 2.33–2.58 mm. Female rostrum with dorsal ridges only at base, anteriorly subglabrous, with submedian rows of punctures and sublateral furrows; epistome simple. Female abdominal ventrite 5 sparsely punctate, sublaterally with sparse erect scales.

Material examined

Holotype (MZB): ARC2797 (GenBank # MK260301), N-Sulawesi Prov., Airmadidi, Gn. Klabat, 01°26.368'N 125°00.609'E to 01°26.505'N 125°00.636'E, 872–923 m, beaten, 16-V-2012. Paratypes (MZB, SMNK): N-Sulawesi Prov.: 1 ex, ARC2798 (GenBank # MK260302), same data as holotype; 1 ex, Airmadidi, Gn. Klabat, 01°26.430'N 125°00.622'E, 889 m, sifted, 17-V-2012; 1 ex, Airmadidi, Gn. Klabat, 01°26.505'N 125°00.636'E, 923 m, sifted, 16-V-2012; 1 ex, Airmadidi, Gn. Klabat, 01°26.368'N 125°00.609'E to 01°26.505'N 125°00.636'E, 872–923 m, 16-V-2012, beaten; 4 exx, Airmadidi, Gn. Klabat, 01°26.505'N 125°00.636'E to 01°26.635'N 125°00.823'E, 923–1031 m, 16-V-2012, beaten; 1 ex, ARC0349 (GenBank # HG939578), Bitung, Gn. Dua Saudara, 750 m, 24-VI-2006, sifted.

Distribution

N-Sulawesi Prov. (Mt Dua Saudara, Mt Klabat). Elevation 750–920 m.

Biology

Uncertain if more frequently on foliage or in leaf litter.

Etymology

This epithet is the diminutive form of the Latin adjective nitidus, -a, -um (polished) and refers to the species´ small size and its elytral sculpture.

Notes

Trigonopterus nitidulus Riedel, sp. n. was coded as “Trigonopterus sp. 400”.

Original Description

  • Riedel, A; Narakusumo, R; 2019: One hundred and three new species of Trigonopterus weevils from Sulawesi ZooKeys, (828): 1-153. doi

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