Trigonopterus plicicollis Riedel

Riedel, Alexander, Sagata, Katayo, Surbakti, Suriani, Rene Taenzler, & Michael Balke,, 2013, One hundred and one new species of Trigonopterus weevils from New Guinea, ZooKeys 280, pp. 1-150 : 56

publication ID

https://dx.doi.org/10.3897/zookeys.280.3906

persistent identifier

https://treatment.plazi.org/id/B45D9A8C-7C45-F91B-0187-9CDE6558F5DE

treatment provided by

ZooKeys by Pensoft

scientific name

Trigonopterus plicicollis Riedel
status

sp. n.

62. Trigonopterus plicicollis Riedel   ZBK sp. n.

Diagnostic description.

Holotype, male (Fig. 62a). Length 2.75 mm. Color black; legs deep ferruginous, antenna light ferruginous. Body in dorsal aspect and in profile with distinct constriction between pronotum and elytron. Rostrum in basal half with 3 ridges posteriorly continued to forehead; furrows each with 1 row of mesad directed setae; epistome weakly swollen, with transverse ridge. Pronotum deeply sculptured; with marked subapical constriction, apical collar with coarse punctures; disk with glabrous median ridge, on each side with additional three highly elevated coarsely punctate ridges; sides with oblique wrinkles and deep punctures. Elytra with striae deeply incised, towards sides with interspersed punctures; intervals costate, subglabrous, with sparse small punctures and wrinkles; apex extended ventrad, slightly beak-shaped. Femora edentate. Metafemur with denticulate dorsoposterior edge, subapically without stridulatory patch. Aedeagus (Fig. 62b) apically with submedian tooth shifted to the left; body at middle with broad depression visible in lateral aspect; transfer apparatus flagelliform, shorter than body, pointing basad; ductus ejaculatorius with bulbus. Intraspecific variation. Length 2.10-2.75 mm. Female rostrum in apical half dorsally flattened, subglabrous, with sparse punctures and lateral furrows; epistome simple.

Material examined.

Holotype (MZB): ARC0543 (EMBL # FN429249), WEST NEW GUINEA, Jayapura Reg., Cyclops Mts, Sentani, S02°31.683', E140°30.281', 960 m, 21-XI-2007, sifted. Paratypes (ARC, SMNK, ZSM): WEST NEW GUINEA, Jayapura Reg., Cyclops Mts, Sentani: 6 exx, same data as holotype; 2 exx, ARC0539 (EMBL # FN429245), ARC0540 (EMBL # FN429246), S02°31.594', E140°30.407', 1065 m, 21-XI-2007, sifted; 1 ex, 700 m, 22-XII-2004; 3 exx, 1000 m, 23-XII-2004, sifted; 1 ex, 1320 m, 23-XII-2004, sifted; 4 exx, 1100 m, 23-XII-2004, sifted.

Distribution.

Jayapura Reg. (Cyclops Mts). Elevation: 960-1320 m.

Biology.

Sifted from leaf litter in primary forest.

Etymology.

This epithet is based on a combination of the Latin nouns plica (fold) and collum (neck, pronotum) and refers to the surface of the pronotum.

Notes.

Trigonopterus plicicollis Riedel, sp. n. was coded as " Trigonopterus sp. 32" by Riedel et al. (2010) and Tänzler et al. (2012), respectively " Trigonopterus spaf" in the EMBL/GenBank/DDBJ databases.