Trigonopterus ovatus

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Taxonavigation

Ordo: Coleoptera
Familia: Curculionidae
Genus: Trigonopterus

Name

Trigonopterus ovatus Riedel sp. n. – Wikispecies link – ZooBank link – Pensoft Profile

Diagnostic description

Holotype, male (Fig. 57a). Length 3.56 mm. Color black; antennal scape and funicle ferruginous. Body ovate; with weak constriction between pronotum and elytron; in profile evenly convex. Rostrum dorsally densely punctate, without ridges or furrows. Pronotum densely punctate; dorsally punctures minute, laterally larger, anterolaterally with scattered white scales. Elytra punctate with minute punctures, especially on intervals; strial punctures slightly larger; striae impressed as fine lines; lateral stria behind humeri simple, not deepened. Femora edentate. Mesofemur and metafemur dorsally densely squamose with white scales. Metafemur with smooth dorsoposterior edge; subapically without stridulatory patch. Metatibia apically with uncus, without premucro. Aedeagus (Fig. 57b) symmetrical; apex subangulate, subglabrous; transfer-apparatus simple; ductus ejaculatorius without bulbus. Intraspecific variation. Length 2.97–3.94 mm. Female rostrum in apical half slightly narrower than in male, dorsally with punctures slightly sparser and smaller.

Material examined

Holotype (SMNK): ARC1127 (EMBL # HE615756), PAPUA NEW GUINEA, Simbu Prov., Karimui Dist., Haia, Supa, S06°40.078', E145°03.207' to S06°39.609', E145°03.012', 1220–1450 m, 02-X-2009. Paratypes (NAIC, SMNK, ZSM): Simbu Prov., Karimui Dist., Haia: 143 exx, ARC1154 (EMBL # HE615782), ARC1155 (EMBL # HE615783), ARC1156 (EMBL # HE615784), S06°41.216', E145°00.945' to S06°40.976', E145°00.979', 970–1135 m, 04-X-2009; 2 exx, S06°43.515', E145°00.128' to S06°43.948', E144°59.856', 750–915 m, 26-IX-2009; 15 exx, Haia, S06°41.259', E145°00.822' to S06°41.102', E145°00.979', 900–1005 m, 27-IX-2009; 27 exx, Simbu Prov., Karimui Dist., Haia, S06°41.102', E145°00.979', 1005–1020 m, 27-IX-2009, beaten, “Mimikry-sample”; 52 exx, Haia, S06°41.102', E145°00.979' to S06°40.976', E145°00.979', 1020–1135 m, 27-IX-2009, beaten; 1 ex, S06°41.553', E145°00.355' to S06°41.624', E145°00.728', 800–960 m, 25-IX-2009; 7 exx, ARC1128 (EMBL # HE615757), same data as holotype; 3 exx, Haia, Supa station, S06°39.815', E145°03.169' to S06°39.609', E145°03.012', 1240–1450 m, 30-IX-2009, beaten; 12 exx, Haia, Supa station, S06°40.047', E145°03.464' to S06°39.905', E145°03.880', 1075–1220 m, 01-X-2009, beaten; 17 exx, Haia, Supa station, S06°39.905', E145°03.880' to S06°39.796', E145°03.873', 1220–1320 m, 01-X-2009, beaten.

Distribution

Simbu Prov. (Haia). Elevation: 915–1240 m.

Biology

Collected by beating foliage in primary forests.

Etymology

This epithet is based on the Latin adjective ovatus (egg-shaped) and refers to the species´ body form.

Notes

Trigonopterus ovatus Riedel, sp. n. was coded as “Trigonopterus sp. 147” by Tänzler et al. (2012).

Original Description

• Riedel, A; Sagata, K; Surbakti, S; Rene Tänzler, ; Michael Balke, ; 2013: One hundred and one new species of Trigonopterus weevils from New Guinea ZooKeys, 280: 1-150. doi

Images

Figure 57. Trigonopterus ovatus Riedel, sp. n., holotype; (a) Habitus (b) Aedeagus.