Trigonopterus lampungensis Riedel

Riedel, Alexander, Taenzler, Rene, Balke, Michael, Rahmadi, Cahyo & Suhardjono, Yayuk R., 2014, Ninety-eight new species of Trigonopterus weevils from Sundaland and the Lesser Sunda Islands, ZooKeys 467, pp. 1-162 : 42-43

Taxon classification Animalia Coleoptera Curculionidae

44. Trigonopterus lampungensis Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 44a). Length 2.06 mm. Color of antennae light ferruginous, remainder dark ferruginous to black. Body in dorsal aspect with marked constriction between pronotum and elytron; with distinct constriction in profile. Rostrum dorsally dull, rugulose; with median ridge and pair of indistinct submedian ridges, intervening furrows punctate, sparsely squamose with small suberect scales; epistome simple. Pronotum anterolaterally very weakly angularly projecting; with distinct subapical constriction; disk coarsely punctate, each puncture containing minute scale; interspaces dull, microreticulate; indistinct median ridge subglabrous. Elytra with striae deeply impressed, each with row of minute transparent scales; intervals costate to subcarinate, microreticulate; interval 7 swollen subapically, laterally projecting. Profemur edentate, meso- and metafemur ventrally with denticle. Metafemur subapically with stridulatory patch and transverse rows of denticles. Abdominal ventrite 5 with shallow impression. Penis (Fig. 44b) with body in profile markedly curved ventrad; basal half flattened, in dorsal aspect sides subparallel; towards apex slightly widened; apex with median, subtriangular extension; transfer apparatus flagelliform, ca. 1.3 × as long as body; apodemes 2.2 × as long as body; ductus ejaculatorius without bulbus. Intraspecific variation. Length 1.96-2.40 mm. Color of body black or ferruginous. Female rostrum dorsally subglabrous, with pairs of lateral and submedian furrows; epistome simple. Pronotum with anterolateral knobs indistinct or more distinctly projecting. Female abdominal ventrite 5 flat.

Material examined.

Holotype (MZB): ARC0266 (EMBL # LM655457), East Sumatra, Lampung Prov., Bawang, Pedada Bay, Mt. Tanggang, sample 2, S05°43.947', E105°06.480', 659 m, 09-VIII-2006. Paratypes (MZB, SMNK, ZSM): E-Sumatra, Lampung Prov.: 1 ex, ARC0267 (EMBL # LM655458), same data as holotype; 1 ex, ARC0274 (EMBL # LM655465), Bawang, Pedada Bay, Mt. Tanggang, sample 3, S05°43.938', E105°06.440', 673 m, 09-VIII-2006; 1 ex, Bawang, Pedada Bay, Mt. Tanggang, sample 4, S05°43.871', E105°06.393', 744 m, 09-VIII-2006; 1 ex, Bukit Barisan Selatan N.P., Kota Agung, Sukaraja, sample 5, S05°31.044', E104°25.664', 562 m, 02-V-2012; 1 ex, ARC2731 (EMBL # LM655987), Bukit Barisan Selatan N.P., Kota Agung, Sukaraja, sample 8, S05°33.032', E104°25.985', 421 m, 02-V-2012; 2 exx, ARC2732 (EMBL # LM655988), ARC2733 (EMBL # LM655989), Bukit Barisan Selatan N.P., Liwa, sample 1, S05°04.409', E104°03.265', 670 m, 04-V-2012; 1 ex, Bukit Barisan Selatan N.P., Liwa, sample 6, S05°04.753', E104°03.183', 809 m, 05-V-2012; 1 ex, ARC2734 (EMBL # LM655990), Bukit Barisan Selatan N.P., Liwa, sample 7, S05°04.958', E104°03.379', 813 m, 05-V-2012; 1 ex, Bukit Barisan Selatan N.P., Liwa, sample 8, S05°05.015', E104°03.442', 801 m, 05-V-2012.

Distribution.

Lampung Prov. (Bukit Barisan Selatan N.P., Pedada Bay). Elevation: 421-813 m.

Etymology.

This epithet is based on the Indonesian province of Lampung.

Notes.

Trigonopterus lampungensis Riedel, sp. n. was coded as " Trigonopterus sp. 301".