Sybra posticalis (Pascoe, 1858)

Lin, Mei-Ying, Perissinotto, Renzo & Clennell, Lynette, 2021, Census of the longhorn beetles (Coleoptera, Cerambycidae and Vesperidae) of the Macau SAR, China, ZooKeys 1049, pp. 79-161 : 79

Sybra posticalis (Pascoe, 1858)

Fig. 31

Ropica posticalis Pascoe, 1858: 248. TL: China (Hong Kong); TD: NHMUK.

Distribution.

Palaearctic Region: China (Hainan, Hong Kong, Taiwan) ( Yiu 2009; Lin and Yang 2019; Danilevsky 2020).

Macau records.

1♂, Coloane, 16 Apr 1994, PF Cheong (CIAM); 2♂, 2♀, Cotai Ecological Zone, 1st zone, 4-5 Apr 2013, leg. Feng-Long Jia & Wei-Cai Xie (SYSU); Great Taipa, 22 Apr 2019, in mosquito trap, R Perissinotto & L Clennell (IZCAS × 2); ibidem 13 May 2019, on wall in ablution block, R Perissinotto & L Clennell (MACT): ibidem 13 Jun 2019, on floor in ablution block, R Perissinotto & L Clennell (IZCAS); Coloane Village, 22 Jun 2019, on wall in ablution block, R Perissinotto & L Clennell (IZCAS); St. Francis Xavier’s Parish [Coloane], 24 May 2020 2:14, Kit Chang (https://www.inaturalist.org/observations/47082176); Nossa Senhora do Carmo, Ilhas [Little Taipa], 9 May 2021 13:27, Kit Chang (https://www.inaturalist.org/observations/78034724).

Remarks.

In Macau, adults seem to be active only in late spring and range in total length 5.5-8 mm and 1.5-3 mm in maximum width. Activity is mainly nocturnal and individuals are readily attracted to artificial lights. In Hong Kong, a larva was reared successfully in captivity to adulthood when fed a mixture of soft dead woods ( Yiu 2009).

Figures

Figure 31. Sybra posticalis (Pascoe, 1858): dorsal (A) and lateral (B) views of specimens observed at Coloane Village (22 Jun 2019) and on Coloane Heights (24 May 2020), respectively (photographs: A LC B Kit Chang).