Trigonopterus ejaculatorius

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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 175538, https://species-id.net/w/index.php?title=Trigonopterus_ejaculatorius&oldid=175538 , 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 175538, https://species-id.net/w/index.php?title=Trigonopterus_ejaculatorius&oldid=175538 , 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 175538, https://species-id.net/w/index.php?title=Trigonopterus_ejaculatorius&oldid=175538 , 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 = 2019-10-20

}} Versioned wiki page: 2019-04-19, version 175538, https://species-id.net/w/index.php?title=Trigonopterus_ejaculatorius&oldid=175538 , 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 ejaculatorius Riedel sp. n.Wikispecies linkZooBank linkPensoft Profile

Diagnostic description

Holotype, male (Fig. 23a). Length 2.75 mm. Color of antennae ferruginous; legs dark ferruginous; remainder black. Body subovate; in dorsal aspect with distinct constriction between pronotum and elytron, in profile dorsally convex. Rostrum dorsally with median costa and pair of submedian ridges; intervening furrows with rows of silvery elongate scales; in profile median costa forming subangular hump at junction with forehead; epistome indistinct. Pronotum with disk densely punctate; interspaces between punctures subglabrous; median line impunctate. Elytra densely irregularly punctate with small punctures; striae marked by hardly visible hairlines; intervals flat; stria 7 and 8 along humerus with 5–6 coarse punctures. Femora edentate. Meso- and metafemur with anteroventral ridge crenate; anterior surface of femora densely punctate, each puncture with narrow recumbent scale. Metafemur with dorsoposterior edge weakly crenate; subapically with stridulatory patch. Metatibia with dorsal edge in basal 1/2 denticulate. Abdominal ventrites 1–2 weakly concave, subglabrous, laterally microreticulate, with sparse erect scales; ventrite 5 at middle impressed, concave, subglabrous, sublaterally and subapically densely punctate. Penis (Fig. 23b) with sides subparallel; apex subangulate, weakly pointed, without setae; apodemes 2.0 × as long as body of penis; transfer apparatus spiniform, directed basad in repose; ductus ejaculatorius with distinct, swollen bulbus.

Material examined

Holotype (MZB): ARC3094 (GenBank # MK260527), S-Sulawesi Prov., Mangkutana, 02°20.306'S 120°46.792'E to 02°20.203'S 120°46.878'E, 850–910 m, beaten, 14-V-2013.

Distribution

S-Sulawesi Prov. (Mangkutana). Elevation ca. 850–910 m.

Biology

On foliage in montane forests.

Etymology

This epithet is based on the ductus ejaculatorius which is markedly swollen in males of this species. It is treated as an adjective.

Notes

Trigonopterus ejaculatorius Riedel, sp. n. was coded as “Trigonopterus sp. 507”. It is closely related to Trigonopterus vicinus Riedel, sp. n. from which it differs by 17.3% p-distance of cox1 and can be distinguished by the subangular basal hump of the rostral profile.

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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