Trigonopterus strigatus 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 : 74

publication ID

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

persistent identifier

https://treatment.plazi.org/id/6890A583-BBD5-F330-7069-C3FE864D7FD7

treatment provided by

ZooKeys by Pensoft

scientific name

Trigonopterus strigatus Riedel
status

sp. n.

83. Trigonopterus strigatus Riedel   ZBK sp. n.

Diagnostic description.

Holotype, male (Fig. 83a). Length 2.95 mm. Color black; antenna and tarsi ferruginous. Body ovate; in dorsal aspect almost without constriction between pronotum and elytron; in profile evenly convex. Rostrum in basal half with distinct median ridge and pair of submedian ridges, furrows with sparse rows of yellowish scales; apically weakly punctate, sparsely setose. Pronotum densely punctate-reticulate. Elytra dorsally with striae deeply incised forming well-defined furrows; intervals each with one secondary furrow of fused elongate punctures; laterally subglabrous, sparsely punctate. Femora somewhat widened, with distinct anteroventral ridge, edentate. Metafemur dorsally sparsely squamose with silvery scales; with weakly denticulate dorsoposterior edge; subapically with stridulatory patch. Metatibia apically with uncus, without premucro. Abdominal ventrite 5 with shallow depression, densely punctate, with dense suberect setae. Aedeagus (Fig. 83b) apically angulate, subglabrous; complex transfer-apparatus symmetrical; ductus ejaculatorius basally swollen, with indistinct bulbus. Intraspecific variation. Length 2.94-3.06 mm. Female rostrum in apical half slender, dorsally subglabrous, punctate, posteriorly with furrows. Female abdominal ventrite 5 densely punctate, with sparse recumbent scales, medially with weak swelling.

Material examined.

Holotype (SMNK): ARC1188 (EMBL # HE615816), PAPUA NEW GUINEA, Morobe Prov., Huon peninsula, Mindik, S06°27.380', E147°25.099' to S06°27.267', E147°25.049', 1500-1650 m, 09-X-2009. Paratypes (ARC, NAIC, SMNK, ZSM): Morobe Prov., Huon peninsula, Mindik: 7 exx, ARC1189 (EMBL # HE615817), ARC1190 (EMBL # HE615818), same data as holotype; 4 exx, 1500-1670 m, S06°27.311', E147°24.073' to S06°27.221', E147°24.185', beaten, 10-X-2009; 1 ex (marked as ARC0060), 1200-1500 m, 26-IV-1998; 1 ex, 1400-1550 m, 27-IV-1998.

Distribution.

Morobe Prov. (Mindik). Elevation: 1500 m.

Biology.

Beaten from foliage of montane forests.

Etymology.

This epithet is based on the Latin participle strigatus (striated) and refers to the species´ elytral sculpture.

Notes.

Trigonopterus strigatus Riedel, sp. n. was coded as " Trigonopterus sp. 216" by Tänzler et al. (2012).