Trigonopterus fulgidus 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 : 34-35

Taxon classification Animalia Coleoptera Curculionidae

35. Trigonopterus fulgidus Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 35a). Length 3.66 mm. Color of legs, head and ventral surface ferruginous; pronotum and elytron reddish coppery, partly with slight greenish lustre. Body in dorsal aspect with marked constriction between pronotum and elytron; in profile dorsally convex. Rostrum in apical third scabrous; in basal half with median and pair of submedian ridges; intervening furrows each with row of coarse punctures and suberect piliform scales; epistome with transverse, angulate ridge forming distinct median denticle. Pronotum with sides subparallel; anteriorly abruptly rounded to subapical constriction; disk with pair of submedian impressions, coarsely punctate, reticulate; each puncture containing inconspicuous seta; medially swollen. Elytra with humeri markedly swollen, laterally projecting; interval 4 subbasally swollen, forming dorsal protrusion; interval 5 behind middle weakly swollen, gently projecting from lateral outline; striae distinct; intervals flat, each with row of small punctures; subbasally striae 2-6 deeply incised, intervals and humeral callus densely coarsely punctate; punctures each bearing small inconspicuous scale. Anteroventral ridge of femora distinct, in meso- and metafemur forming large tooth. Metafemur subapically with stridulatory patch. Dorsal edge of pro- and mesotibia subbasally with angulation; meso- and metatibia subapically with dorsal margin concave; mesotibia in apical 1/3 with tooth on dorsal edge. Abdominal ventrite 5 flat, coarsely punctate; with long, suberect setae. Penis (Fig. 35b) with sides of body subparallel; apex subangulate; transfer apparatus small, compact; apodemes 2.0 × as long as body; ductus ejaculatorius without bulbus. Intraspecific variation. Length 2.38-3.78 mm. Color of pronotum and elytron ranging from reddish to greenish coppery. Female body more slender. Female rostrum dorsally punctate-rugose, with median and pair of submedian subglabrous costae; epistome simple. Female elytra subovate, without swellings, lateral contour convex, humeri simple.

Material examined.

Holotype (MZB): ARC2274 (EMBL # LM655728), West Nusa Tenggara Prov., Lombok, Santong, Rinjani-track, sample 1, S08°20.715', E116°19.695', 830 m, 24-III-2011. Paratypes (MZB, SMNK, ZSM): 3 exx, same data as holotype; 4 exx, Santong, Rinjani-track, sample 2, S08°20.813', E116°19.778', 870 m, 24-III-2011; 10 exx, ARC2281 (EMBL # LM655735), ARC2282 (EMBL # LM655736), Lombok, Santong, Rinjani-track, sample 3, S08°20.996', E116°20.001', 960 m, 25-III-2011; 1 ex, Santong, Rinjani-track, sample 4, S08°21.160', E116°20.067', 1005 m, 25-III-2011; 1 ex, Santong, Rinjani-track, sample 5, S08°21.351', E116°20.208', 1105 m, 25-III-2011; 1 ex, Santong, Rinjani-track, sample 6, S08°21.754', E116°20.476', 1315 m, 25-III-2011; 9 exx, ARC2256 (EMBL # LM655710), ARC2257 (EMBL # LM655711), ARC2258 (EMBL # LM655712), Lombok, Senaru, Rinjani-track, sample 1, S08°19.429', E116°24.082', 900 m, 21-III-2011; 2 exx, Lombok, Senaru, Rinjani-track, sample 4, S08°20.439', E116°24.047', 1240 m, 21-III-2011; 16 exx, Lombok, Senaru, Rinjani-track, sample 6, S08°19.359', E116°24.070', 860 m, 23-III-2011; 3 exx, Senaru, Rinjani-trail, sample 7, S08°19.643', E116°24.033', 935 m, 23-III-2011; 7 exx, Senaru, Rinjani-trail, sample 8, S08°19.719', E116°24.040', 955 m, 23-III-2011; 12 exx, ARC2288 (EMBL # LM655742), ARC2289 (EMBL # LM655743), ARC2290 (EMBL # LM655744), Lombok, Mt. Rinjani, Bawnau, near Sembalun, sample 1, S08°21.136', E116°29.257', 1140 m, 26-III-2011.

Distribution.

West Nusa Tenggara Prov., Lombok (Santong, Sembalun, Senaru). Elevation: 830-1240 m.

Etymology.

This epithet is based on the Latin adjective fulgidus (shining, gleaming) and refers to its vivid coloration.

Notes.

Trigonopterus fulgidus Riedel, sp. n. was coded as " Trigonopterus sp. 349" by Tänzler et al. (2014).