Trigonopterus tatorensis Riedel

Riedel, Alexander & Narakusumo, Raden Pramesa, 2019, One hundred and three new species of Trigonopterus weevils from Sulawesi, ZooKeys 828, pp. 1-153 : 1

95. Trigonopterus tatorensis Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 95a). Length 2.91 mm. Color of antennae ferruginous; legs dark ferruginous to black; remainder black. Body subovate; in dorsal aspect and in profile with indistinct constriction between pronotum and elytron. Rostrum dorsally with glabrous median costa, with rows of course punctures and furrows; with sparse suberect setae; epistome indistinct. Pronotum with disk densely punctate; interspaces between punctures subglabrous; above procoxa punctures large, almost confluent. Elytra with striae marked by hairlines and rows of fine punctures; basal margin bordered row of slightly larger punctures; sutural interval punctate, other intervals subglabrous. Profemur with anteroventral ridge indistinct, simple; meso- and metafemur with anteroventral ridge denticulate; anterior surface of femora coarsely punctate, each puncture with narrow recumbent scale. Metafemur with dorsoposterior edge simple, without denticles; subapically with stridulatory patch. Metatibia ventrally with sparse row of long, stiff setae. Abdominal ventrites 1-2 concave, sparsely punctate; ventrite 5 at middle with transverse depression, sparsely punctate, with sparse upcurved scales. Penis (Fig. 95b) with sides converging, apex spatulate, weakly rounded, without setae; ostium elongate; apodemes 2.7 × as long as body of penis; transfer apparatus small, hook-shaped, directed basad in repose, without supporting sclerites; ductus ejaculatorius with indistinct bulbus. Intraspecific variation. Length 2.63-3.00 mm. Female rostrum subglabrous, with submedian and sublateral rows of punctures.

Material examined.

Holotype (MZB): ARC2828 (EMBL # LN884935), S-Sulawesi Prov., Pc. Palopo, Gn. Sampuna, 02°56.539'S 120°05.320'E to 02°56.545'S 120°05.595'E, 1038-1101 m, beaten, 29-V-2012. Paratypes (MZB, SMNK, ZSM): S-Sulawesi Prov.: 228 exx, ARC2829 (GenBank # MK260374), ARC2830 (GenBank # MK260371), ARC2831 (GenBank # MK260370), same data as holotype; 78 exx, ARC6006 (GenBank # MK260373), Pc. Palopo, Gn. Sampuna, 02°56.539'S 120°05.320'E to 02°56.545'S 120°05.595'E, 1038-1101 m, beaten, 02-V-2013; 2 exx, Pc. Palopo, Gn. Sampuna, 02°56.539'S 120°05.320'E, 1038 m, sifted, 29-V-2012; 32 exx, Pc. Palopo, Gn. Sampuna, 800-1050 m, 15-16-IX-1997, beaten; 6 exx, ARC3002 (GenBank # MK260369), ARC3003 (GenBank # MK260375), ARC3004 (GenBank # MK260372), Tanah Toraja, Rantepao, Gn. Karre (= Gn. Wokim), 02°58.846'S 120°02.158'E, position 3, 1396 m, 06-V-2013.

Distribution.

S-Sulawesi Prov. (Pc. Palopo, Gn. Karre). Elevation 1100-1400 m.

Biology.

On foliage in montane forests.

Etymology.

This epithet is a Latinized adjective based on the Indonesian abbreviation of Tanah Toraja “TaTor” and refers to the type locality.

Notes.

Trigonopterus tatorensis Riedel, sp. n. was coded as " Trigonopterus sp. 416".