Trigonopterus gracilipes Riedel

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

publication ID

https://dx.doi.org/10.3897/zookeys.828.32200

publication LSID

lsid:zoobank.org:pub:2A63A74D-8B30-4C83-AB74-7BAF6AF6984E

persistent identifier

https://treatment.plazi.org/id/0EC4E275-EF1A-4987-9F05-242EB6D6FD2D

taxon LSID

lsid:zoobank.org:act:0EC4E275-EF1A-4987-9F05-242EB6D6FD2D

treatment provided by

ZooKeys by Pensoft

scientific name

Trigonopterus gracilipes Riedel
status

sp. n.

25. Trigonopterus gracilipes Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 25a). Length 1.82 mm. Color of antennae yellowish; legs ferruginous; remainder black. Body subovate; in dorsal aspect with weak constriction, in profile with distinct constriction between pronotum and elytron. Rostrum long; at middle with gentle constriction; dorsally with median and pair of submedian, somewhat irregular ridges; intervening furrows with punctures and sparse indistinct setae; epistome posteriorly with angulate ridge bearing median and pair of sublateral denticles. Pronotum with disk densely, coarsely punctate; interspaces between punctures reticulate, subglabrous. Elytra with punctures large, deeply impressed; dorsally intervals dorsally costate, subglabrous; sutural interval basally curving laterad. Legs long, almost spider-like. Femora with very indistinct anteroventral ridge ending with minute denticle; anterior and dorsal surface punctate-rugose, with longitudinal wrinkles. Metafemur subapically with stridulatory patch. Abdominal ventrites 1-2 dull, microreticulate, with coarse punctures; ventrite 5 flat, microreticulate, dull. Penis (Fig. 25b) with body curved ventrad, in basal 1/2 sides subparallel, converging to acute apex; subapically with fringe of long setae; basal orifice with well-sclerotized ventral rim; apodemes 2.1 × as long as body of penis; transfer apparatus indistinct; ductus ejaculatorius with indistinct bulbus.

Material examined.

Holotype (MZB): ARC2881 (GenBank # MK260366), N-Sulawesi Prov., Kotamobagu, Matalibaru, 00°32.445'N 124°14.185'E, 956 m, beaten, 20-V-2012.

Distribution.

N-Sulawesi Prov. (Kotamobagu). Elevation ca. 960 m.

Biology.

On foliage in montane forests.

Etymology.

This epithet is a combination of the Latin adjective gracilis (slender) and the noun pes (foot, leg). It refers to the species´ long, slender legs. A noun in apposition.

Notes.

Trigonopterus gracilipes Riedel, sp. n. was coded as " Trigonopterus sp. 414".