Trigonopterus asterix
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Ordo: Coleoptera
Familia: Curculionidae
Genus: Trigonopterus
Name
Trigonopterus asterix Riedel sp. n. – Wikispecies link – ZooBank link – Pensoft Profile
Diagnostic description
Holotype, male (Fig. 10a). Length 2.68 mm. Color of antennae and legs ferruginous; remainder black. Body subovate; in dorsal aspect with weak constriction between pronotum and elytron; in profile dorsally convex. Rostrum dorsally with median and pair of submedian ridges; intervening furrows each with sparse row of recumbent piliform scales; epistome posteriorly with subangulate, transverse, irregularly interrupted ridge. Pronotum with disk punctate with small punctures; each puncture containing a single seta; interspaces subglabrous. Elytra punctate with small punctures; striae marked by fine hairlines; irregular intervals each with additional sparse row of punctures; interspaces between punctures subglabrous; stria 8 along humerus with four large, coarse punctures, externally bordered by weakly raised interval 9. Femora edentate; anterior surface punctate with small punctures, each with recumbent piliform scale. Metafemur subapically with stridulatory patch. Protibia widened to apex. Posterior face of metatibia in apical 1/2 with dense fringe of yellowish setae. Abdominal ventrites 1–2 concave, subglabrous; ventrite 5 with deep, subglabrous pit, laterally and subapically punctate and sparsely setose. Penis (Fig. 10b) with sides of body subparallel; apex subangulate, without setae; body dorsally with median ridge, forming angulate profile; apodemes 2.0 × as long as body; transfer apparatus complex, with basal sclerite shaped as an inverted V; ductus ejaculatorius with indistinct bulbus. Intraspecific variation. Length 2.40–2.81 mm. Female rostrum slender, dorsally with median row of punctures and pair of sublateral furrows; epistome simple. Female metatibia only subapically setose. Female ventrite 5 flat, subglabrous, sparsely punctate.
Material examined
Holotype (MZB): ARC3007 (GenBank # MK260221), S-Sulawesi Prov., Tanah Toraja, Rantepao, Gn. Karre (= Gn. Wokim), 02°59.013'S 120°02.251'E, 1423 m, beaten, 06-V-2013. Paratypes (MZB, SMNK): S-Sulawesi Prov.: 6 exx, ARC2993 (GenBank # MK260222), ARC5988 (GenBank # MK260216), ARC5992 (GenBank # MK260226), Tanah Toraja, Rantepao, Gn. Karre (= Gn. Wokim), 02°59.021'S 120°02.523'E, 1456 m, 06-V-2013, beaten; 1 ex, ARC ARC6028 (GenBank # MK260225), Tanah Toraja, Rantepao, Gn. Karre (= Gn. Wokim), 02°59.021'S 120°02.523'E, 1456 m, 06-V-2013, sifted; 4 exx, Tanah Toraja, Rantepao, Gn. Karre (= Gn. Wokim), 02°58.846'S 120°02.158'E, 1396 m, beaten, 06-V-2013; 4 exx, ARC3008 (GenBank # MK260220), ARC6003 (GenBank # MK260227), same data as holotype; 24 exx, ARC2824 (GenBank # MK260223), ARC2825 (GenBank # MK260219), ARC2826 (GenBank # MK260218), ARC2827 (GenBank # MK260217), ARC6050 (GenBank # MK260224), Pc. Palopo, Gn. Sampuna, 02°56.539'S 120°05.320'E to 02°56.545'S 120°05.595'E, 1038–1101 m, 29-V-2012, beaten; 1 ex, ARC6005 (GenBank # MK260228), Pc. Palopo, Gn. Sampuna, 02°56.539'S 120°05.320'E to 02°56.545'S 120°05.595'E, 1038–1101 m, 02-V-2013, beaten.
Distribution
S-Sulawesi Prov. (Rantepao, Pc. Palopo). Elevation 1100–1460 m.
Biology
On foliage in montane forests.
Etymology
This epithet is based on a character of the French Asterix comics. It is a noun in apposition.
Notes
Trigonopterus asterix Riedel, sp. n. was coded as “Trigonopterus sp. 378”. This species is very closely related to Trigonopterus fuscipes Riedel, sp. n., from which it differs by ca. 12% p-distance of cox1 and by the structure of the male genitalia.
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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