Trigonopterus adspersus
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Ordo: Coleoptera
Familia: Curculionidae
Genus: Trigonopterus
Name
Trigonopterus adspersus Riedel sp. n. – Wikispecies link – ZooBank link – Pensoft Profile
Diagnostic description
Holotype, male (Fig. 2a). Length 2.30 mm. Color of antennae ferruginous; legs and basal 1/2 of elytra dark ferruginous; remainder black. Body subovate; in dorsal aspect and in profile with moderate constriction between pronotum and elytron. Rostrum dorsally with median and pair of submedian ridges; intervening furrows with sparse, erect scales; epistome weakly swollen, simple. Pronotum with lateral edges weakly converging, with weak subapical constriction; disk with pair of distinct longitudinal impressions, lined with sparse yellow almond-shaped scales; medially broadly swollen, densely punctate with coarse punctures, with narrow subglabrous midline. Elytra punctate with small punctures; near base and at humeral angles more densely punctate with coarse punctures; striae hardly marked by hairlines; with patches of sparse yellow recumbent scales. Femora dentate, with acute tooth; anteroventral ridges crenate. Metafemur dorsally denticulate; subapically with stridulatory patch. Dorsoposterior edge of tibiae subbasally denticulate. Metatibia weakly curved. Abdominal ventrites 1–2 concave, subglabrous, with sparse scales; ventrite 5 concave, with sparse punctures. Penis (Fig. 2b) with sides of body subparallel, apex subtruncate, with few short setae; apodemes 1.6 × as long as body of penis; transfer apparatus flagelliform, subequal to length of body of penis; ductus ejaculatorius without distinct bulbus.
Material examined
Holotype (MZB): ARC3146 (EMBL # LN884965), SE-Sulawesi Prov., Kendari, road from Wawotobi to Lasolo, 03°44.142'S 122°13.670'E, 482 m, sifted, 17-IV-2013.
Distribution
SE-Sulawesi Prov. (Kendari). Elevation ca. 480 m.
Biology
In leaf litter of lowland forest.
Etymology
This epithet is based on the Latin participle adspersus (sprinkled, strewn on) and refers to the species´ integument with scattered scales.
Notes
Trigonopterus adspersus Riedel, sp. n. was coded as “Trigonopterus sp. 489”.
Original Description
- Riedel, A; Narakusumo, R; 2019: One hundred and three new species of Trigonopterus weevils from Sulawesi ZooKeys, (828): 1-153. doi
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