Perissus indistinctus Gressitt, 1940

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

Perissus indistinctus Gressitt, 1940

Fig. 19

Perissus indistinctus Gressitt, 1940a: 72. TL: China (Hainan); TD: SYSU.

Distribution.

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

Macau records.

Coloane Heights, A-Mà Cultural Village, 12 Jul 2020, on dead tree trunk, R Perissinotto & L Clennell (IZCAS); ibidem 19 Nov 2020, Lynette Clennell (https://www.inaturalist.org/observations/65209287) (MACT); St. Francis Xavier’s Parish [Coloane], 15 Nov, 2020 15:48, Kit Chang (https://www.inaturalist.org/observations/64929674); ibidem 1 Apr 2021, Lynette Clennell (https://www.inaturalist.org/observations/72595959); ibidem 21 May 2021, Lynette Clennell (https://www.inaturalist.org/observations/79722351).

Remarks.

In Macau, adult activity has been recorded from early spring till late autumn. Specimens range 7-10.5 mm in total length and 1.5-3 mm in maximum width. Adults are active during the hottest part of the day and are generally observed on dead tree branches or roots, where they crawl back and forth with extreme rapidity searching for mates and areas suitable for egg deposition. No information seems to be available in the literature on the larval food plants.

Figures

Figure 19. Perissus indistinctus Gressitt, 1940: dorsal (A) and lateral (B) views of specimens observed on Coloane Heights on 15 Nov 2020 and 12 Jul 2020, respectively (photographs: A Kit Chang B LC).