Trigonopterus squalidulus
| Notice: | This page is derived from the original publication listed below, whose author(s) should always be credited. Further contributors may edit and improve the content of this page and, consequently, need to be credited as well (see page history). Any assessment of factual correctness requires a careful review of the original article as well as of subsequent contributions.
If you are uncertain whether your planned contribution is correct or not, we suggest that you use the associated discussion page instead of editing the page directly. This page should be cited as follows (rationale):
Citation formats to copy and paste
BibTeX: @article{Riedel2019ZooKeys, RIS/ Endnote: TY - JOUR Wikipedia/ Citizendium: <ref name="Riedel2019ZooKeys">{{Citation See also the citation download page at the journal. |
Ordo: Coleoptera
Familia: Curculionidae
Genus: Trigonopterus
Name
Trigonopterus squalidulus Riedel sp. n. – Wikispecies link – ZooBank link – Pensoft Profile
Diagnostic description
Holotype, male (Fig. 92a). Length 1.94 mm. Color of antennae and legs ferruginous, remainder dark ferruginous. Body subovate; in dorsal aspect and in profile with distinct constriction between pronotum and elytron. Rostrum dorsally with median and pair of submedian ridges; intervening furrows with rows of coarse punctures and sparse setae; epistome short, posteriorly with transverse, subangulate ridge. Pronotum with weak subapical constriction; disk with transverse, crenulate costae separated by deep furrows; costae with rows of anteriad directed scales. Elytra with striae deeply impressed, with rows of spatulate suberect scales; intervals costate, subglabrous, with sparse punctures; intervals 1, 3, 5, 7 more distinctly swollen, weakly tuberculate. Metathoracic spiracle located on laterally projecting denticle. Femora with anterior surface punctate-rugose. Profemur edentate. Mesofemur and metafemur with small acute tooth; metafemur subapically with stridulatory patch. Mesotibia with enlarged, curved uncus. Abdominal ventrite 1 weakly concave, with coarse punctures; ventrite 5 at middle with shallow depression, coarsely punctate. Penis (Fig. 92b) with sides of body subparallel; apex subangulate, with sparse short setae; apodemes 2.3 × as long as body of penis; endophallus with pair of elongate sclerites; transfer apparatus complex, with asymmetrical S-shaped basal sclerite; ductus ejaculatorius with indistinct bulbus. Intraspecific variation. Length 1.84–2.00 mm. Female rostrum slender, dorsally subglabrous, punctate; epistome indistinct. Female abdominal ventrite 5 flat, basally coarsely punctate.
Material examined
Holotype (MZB): ARC3071 (GenBank # MK260556), Tanah Toraja, Ponding, Baruppu, 02°48.339'S 119°47.880'E, 2113 m, sifted, 04-V-2013. Paratypes (ARC, MZB, SMNK): 11 exx, ARC3070 (PCR failed), ARC3072 (GenBank # MK260557), same data as holotype; 34 exx, Tanah Toraja, Ponding, Baruppu, 02°48.597'S 119°47.611'E, 1963 m, sifted, 03-V-2013; 1 ex, Tanah Toraja, Ponding - Pulu Pulu, 1800 m, sifted, 13–17-VIII-1990.
Distribution
S-Sulawesi Prov. (Tanah Toraja). Elevation 1800–2100 m.
Biology
In leaf litter of montane forest.
Etymology
This epithet is the diminutive form of the Latin adjective squalidus, -a, -um (rough; dirty) and refers to the species´ small size and its rough integument often incrusted with dirt. A variable adjective as well.
Notes
Trigonopterus squalidulus Riedel, sp. n. was coded as “Trigonopterus sp. 521”.
Original Description
- Riedel, A; Narakusumo, R; 2019: One hundred and three new species of Trigonopterus weevils from Sulawesi ZooKeys, (828): 1-153. doi
Images
|
