Sybrinus x-ornatus Téocchi, Jiroux & Sudre, 2007

Hájek, Jiří & Kabátek, Petr, 2012, Synonymical notes on the genus Sybrinus from Socotra Island (Coleoptera: Cerambycidae: Lamiinae), Acta Entomologica Musei Nationalis Pragae 52, pp. 365-372 : 370-371

Sybrinus x-ornatus Téocchi, Jiroux & Sudre, 2007

( Figs. 5–6 , 13–15 )

Sybrinus (s. str.) x-ornatus Téocchi, Jiroux & Sudre, 2007: 23 (original description). Sybrinus ( Arabosybrinus ?) kabateki Téocchi, Jiroux & Sudre, 2007: 23 (original description), syn. nov. Sybrinus kabateki: ADLBAUER (2010) : 227 (catalogue). Sybrinus x-ornatus: ADLBAUER (2010) : 227 (catalogue).

Type material. Sybrinus kabateki : HOLOTYPE: J ( PKCP), labelled: ‘Yemen, Soqotra Is., Al haghier / mts., W slopes, SKANT area / 2 xii.2003, N 12°35′52″ E 54°/ 00′01″, 900–1240 m [GPS] / leg. P. Kabátek, ex larvae [printed] // Cephalocroton / socotranus [printed] // YEMEN – SOQOTRA / 2003 / Expedition; Jan Farkač, / Petr Kabátek & David Král [printed] // HOLOTYPE [printed, red label] // Sybrinus / ( Arabosybrinus ?) / kabateki nov. sp. / J. Sudre et P. Téocchi / det. 2005 [handwritten]’.

Sybrinus x-ornatus : HOLOTYPE J ( PKCP), labelled: ‘Yemen, Soqotra Is., Al haghier / mts., W slopes, SKANT area / 2 xii.2003, N 12°35′52″ E 54°/ 00′01″, 900–1240 m [GPS] / leg. P. Kabátek [printed] ex larve [handwritten] // Cephalocroton / socotranus [printed] // YEMEN – SOQOTRA / 2003 / Expedition; Jan Farkač, / Petr Kabátek & David Král [printed] // HOLOTYPE [printed, red label] // Sybrinus / (s. str.) / x. ornatus nov. / J. Sudre et P. Téocchi / det. 2005 [handwritten]’.

Additional material examined. SOCOTRA ISLAND: 14 spec., same data as both holotypes ( PKCP) ; 1 spec., 10 km W Hadibo , 10–70 m, 23.xi.+ 11.xii.2003, P. Kabátek leg. ( PKCP) ; 2 spec., Homhil area , 12°34′25″N, 54°18′53″E, 400–510 m, at light, 9.–10.ii.2010, L. Purchart & J. Vybíral leg. ( NMPC) .

Comments on classification. TÉOCCHI et al. (2007) had seen only two pairs of Sybrinus reared from the same twig of Cephalocroton socotranus . Since the specimens differ in body length and dorsal colouration, they decided to describe them as two species: Sybrinus x-ornatus and S. kabateki , respectively. In their original description, the authors compare the two taxa only with S. commixtus and not with each other. After study of the whole series, we have found that the body size of both holotypes falls within the known intraspecific variability (10–14 mm), and the different body colouration can be ascribed to individual variation, and to scraping of dorsal setae on the holotype of S. x-ornatus . As we were not able to find any other differences between the two taxa, we consider Sybrinus kabateki syn. nov. to be a junior subjective synonym of S. x-ornatus .

Bionomic notes. Apart from Cephalocroton socotranus (Euphorbiaceae) , from which the type series was reared, the specimen from environs of Hadibo was reared from Euphorbia arbuscula (Euphorbiaceae) . Adults from Homhil were collected at light.

Figures

Figs. 1–6. Habitus of Sybrinus. 1 – Sybrinus commixtus Gahan, 1900 (Hadibo; 11 mm); 2 – S. albosignatus Breuning, 1948 (Yemen, wadi Sari; 11 mm); 3 – S. simonyi Gahan, 1903 J (W of Hadibo; 10 mm); 4 – S. simonyi ♀ (W of Hadibo; 10 mm); 5 – S. x-ornatus Téocchi, Jiroux & Sudre, 2007 (Scant Mt.; 12 mm); 6 – S. x-ornatus (holotype; 14 mm).

Figs. 7–15. Male genitalia of Sybrinus. 7–9. Sybrinus commixtus Gahan, 1900; 10–12. S. simonyi Gahan, 1903; 13–15. S. x-ornatus Téocchi, Jiroux & Sudre, 2007. 7, 10, 13 – median lobe in dorsal view; 8, 11, 14 – same in lateral view; 9, 12, 15 – parameres.