Cycreon sculpturatus
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BibTeX: @article{Arriaga-Varela2018DeutscheEntomologischeZeitschrift65, RIS/ Endnote: TY - JOUR Wikipedia/ Citizendium: <ref name="Arriaga-Varela2018Deutsche Entomologische Zeitschrift65">{{Citation See also the citation download page at the journal. |
Ordo: Coleoptera
Familia: Hydrophilidae
Genus: Cycreon
Name
Cycreon sculpturatus Orchymont, 1919 – Wikispecies link – Pensoft Profile
- Cycreon sculpturatus Orchymont, 1919: 121.
- Cycreon sculpturatus: Shatrovskiy (2017[1]: 589, redescription).
Type locality
Indonesia: South Sumatra: Palembang [ca. 2.9861°S, 104.7555°E].
Material examined
None (information adopted from Shatrovskiy 2017[1]).
Diagnosis
Cycreon sculpturatus can be distinguished from other species of the genus by the deeply incised clypeus, pronotum densely covered with complete ring-like impressions (punctures) and straight meso- and metatibiae.
Addition to description
Body 2.6 mm long; colouration light reddish-brown, with slightly darker head and elytra; clypeus about 2.5× as wide as long, with anterior margin conspicuously emarginate medially (Fig. 5O); frons and clypeus with punctation composed of complete circular impressions (punctures); mentum (Fig. 5P) subtrapezoid, widest at posterior fifth, about 2.0× wider than long, anteromedian emargination reaching about 0.2× the mentum length; pronotum with dense and moderately deep punctation consisting of complete circular impressions with a small setiferous puncture in posterior part (Fig. 5Q), punctation of approximately same diameter and density all over pronotum; meso- and metatibiae straight (Fig. 5R); male genitalia unknown (because male remains unknown for this species).
Distribution
Only know by a single female specimen from the type locality (Indonesia, Sumatra, Palembang) (Fig. 7).
Remark
According to Shatrovskiy (2017)[1] the proportions of the clypeus were given as 4× as long as wide, however, the picture in the paper (Shatrovskiy 2017[1]: 591) shows that the ratio is about 2.5×.
Taxon Treatment
- Arriaga-Varela, E; Wong, S; Kirejtshuk, A; Fikáček, M; 2018: Review of the flower-inhabiting water scavenger beetle genus Cycreon (Coleoptera, Hydrophilidae), with descriptions of new species and comments on its biology Deutsche Entomologische Zeitschrift, 65(1): 99-115. doi
Images
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![Figure 5. Diagnostic characters of known Cycreon species. A–C – C. adolescens sp. n.; D–F – C. floricola borneanus ssp. n.; G–I – C. floricola floricola ssp. n.; K–L, S – C. armandi; O–R – C. sculpturatus. A, D, G, K, O – anterior margin of clypeus; B, E, H, L, P – mentum (superficial sculpture omitted in L and P); C, F, I, M, Q – pronotal punctation; R–S – metatibia. K, M–S redrawn from Shatrovskiy (2017)[1], L based on a photo provided by A. Shatrovskiy (pers. comm., 2017).](/wiki/File:Dez-65-099-g005.jpg)
Other References
- ↑ 1.0 1.1 1.2 1.3 1.4 Shatrovskiy A (2017) A new species of Cycreon d’Orchymont, 1919 from Singapore (Coleoptera: Hydrophilidae: Megasternini). Zootaxa 4217(3): 588–592. https://doi.org/10.11646/zootaxa.4317.3.11
