Trigonopterus seriatus 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 : 72-73

Taxon classification Animalia Coleoptera Curculionidae

78. Trigonopterus seriatus Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 78a). Length 2.00 mm. Color of legs and head ferruginous; remainder black. Body subovate; in dorsal aspect and in profile with distinct constriction between pronotum and elytron. Rostrum irregularly rugose-punctate; with short, clavate, suberect scales; epistome at middle with indistinct, curved ridge. Pronotum with shallow subapical constriction; disk coarsely punctate; each puncture containing erect clavate scale inserting at posterior rim; surface dull, microreticulate. Elytra with striae deeply impressed, in front of each puncture with claviform, suberect scale; intervals costate; surface dull, coriaceous, microreticulate; interval 7 subapically forming distinct ridge. Femora edentate. Metafemur subapically without stridulatory patch. Abdominal ventrite 5 flat, microreticulate, with sparse scales. Penis (Fig. 78b) with apex asymmetrically extended on the left; apical extension short; basal orifice ventrally without rim; apodemes short, 0.5 × as long as body; ductus ejaculatorius with bulbus. Intraspecific variation. Length 1.80-2.14 mm. Female rostrum dorsally in apical half subglabrous, with small punctures; epistome simple.

Material examined.

Holotype (MZB): ARC2730 (EMBL # LM655986), E-Sumatra,, Lampung Prov., Bukit Barisan Selatan N.P., Kota Agung, Sukaraja, S 05°31.678', E104°25.508', 608 m, 02-V-2012. Paratypes (MZB, SMNK, ZSM): E-Sumatra, Lampung Prov.: 5 exx, ARC0271 (EMBL # LM655462), Bawang, Pedada Bay, Mt. Tanggang, sample 1, S05°43.933', E105°06.598', 579 m, 09-VIII-2006; 5 exx, ARC0268 (EMBL # LM655459), ARC0269 (EMBL # LM655460), ARC0270 (EMBL # LM655461), Bawang, Pedada Bay, Mt. Tanggang, sample 2, S05°43.947', E105°06.480', 659 m, 09-VIII-2006; 1 ex, Bawang, Pedada Bay, Mt. Tanggang, sample 3, S05°43.938', E105°06.440', 673 m, 09-VIII-2006; 4 exx, ARC0272 (EMBL # LM655463), Bawang, Pedada Bay, Mt. Tanggang, sample 4, S05°43.871', E105°06.393', 744 m, 09-VIII-2006; 4 exx, ARC2727 (EMBL # LM655983), ARC2728 (EMBL # LM655984), Bukit Barisan Selatan N.P., Kota Agung, Sukaraja, sample 2, S05°30.330', E104°25.838', 660 m, 01-V-2012; 2 exx, Bukit Barisan Selatan N.P., Kota Agung, Sukaraja, sample 3, S05°32.289', E104°26.295', 495 m, 01-V-2012; 11 exx, Bukit Barisan Selatan N.P., Kota Agung, Sukaraja, sample 4, S05°33.406', E104°25.680', 405 m, 01-V-2012; 2 exx, Bukit Barisan Selatan N.P., Kota Agung, Sukaraja, sample 5, S05°31.044', E104°25.664', 562 m, 02-V-2012; 1 ex, Bukit Barisan Selatan N.P., Kota Agung, Sukaraja, sample 6, S05°31.678', E104°25.508', 608 m, 02-V-2012; 2 exx, Bukit Barisan Selatan N.P., Kota Agung, Sukaraja, sample 7, S05°33.768', E104°25.361', 371 m, 02-V-2012; 1 ex, Bukit Barisan Selatan N.P., Kota Agung, Sukaraja, sample 8, S05°33.032', E104°25.985', 421 m, 02-V-2012; 1 ex, Bukit Barisan Selatan N.P., Kota Agung, Sukaraja, sample 9, S05°32.611', E104°26.353', 455 m, 02-V-2012.

Distribution.

Lampung Prov. (Bukit Barisan Selatan N.P., Pedada Bay). Elevation: 371-744 m.

Etymology.

This epithet is based on the Latin adjective seriatus (arranged in rows) and refers to the elytral scales.

Notes.

Trigonopterus seriatus Riedel, sp. n. was coded as " Trigonopterus sp. 339".