Cycreon armandi
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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 armandi Shatrovskiy, 2017 – Wikispecies link – Pensoft Profile
- Cycreon armandi Shatrovskiy, 2017: 589.
Type locality
Singapore.
Material examined
None (information adopted from Shatrovskiy 2017[1]).
Diagnosis
Cycreon armandi can be distinguished from other known species by the deeply incised clypeus, the semicircular impressions (punctures) on the pronotum, and the curved meso- and metatibae.
Addition to description
Body 3.3 mm long; colouration completely light reddish-brown; clypeus about 2× as wide as long, anterior margin of clypeus strongly emarginate medially (Fig. 5K); frons and clypeus with small and not so closely disposed punctures; mentum (Fig. 5L) subtrapezoid, widest at posterior fifth, about 1.8× wider than long, with a deep anteromedian emargination reaching beyond the anterior fourth of length; pronotum with dense and shallow, punctation consisting of small setiferous half-moon shaped punctures (Fig. 5M); meso- and metatibiae curved (Fig. 5S); median projection of sternite 9 rounded apically (Fig. 3M); aedeagus (Fig. 3L) with phallobase 0.6× as long as parameres, almost symmetrical, manubrium narrow and very; parameres continuously narrowing towards apex; median lobe moderately wide (Fig. 3K), slightly constricted in apical fourth; apex acuminate, triagular.
Distribution
Only known from the type locality in Singapore (Fig. 7).
Remarks
According to Shatrovskiy (2017)[1] the proportions of the clypeus are given as 3× as long as wide, however, the picture in the paper (Shatrovskiy 2017[1]: 591) shows that the ratio is closer to 2.0×.
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 3. Male genitalia of Cycreon species (except C. sculpturatus for which male remains unknown). A–D – C. floricola floricola ssp. n., holotype; E–H – C. floricola borneanus ssp. n., holotype; I–J – C. adolescens sp. n., holotype; K–M – C. armandi Shatrovskiy, 2017, holotype. A, E, K – median lobe; B, F – median lobe in lateral view; C, G, L – tegmen; D, H, M – sternite 9; I – whole aedeagus; J – reconstructed shaped of the median lobe. K–M adapted from Shatrovskiy (2017)[1].](/wiki/File:Dez-65-099-g003.jpg)
![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
