Chelidonium argentatum (Dalman, 1817)

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

Chelidonium argentatum (Dalman, 1817)

Fig. 7

Cerambyx argentatus Dalman, 1817: 151. TL: Unknown; TD: NHRS

Distribution.

Palaearctic Region: China (Anhui, Chongqing, Fujian, Gansu, Guangdong, Guangxi, Hainan, Henan, Hong Kong, Hubei, Hunan, Jiangsu, Jiangxi, Ningxia, Sichuan, Shaanxi, Taiwan, Yunnan, Zhejiang); India (Sikkim) ( Yiu 2009; Lin and Yang 2019; Danilevsky 2020). Oriental Region: India; Laos; Myanmar; Sri Lanka; Vietnam ( Kariyanna et al. 2017).

Macau records.

Taipa, University of East Asia Campus, 28 May 1992, on wall of Tai Fung building and 30 May 1992 outside classroom CLG 401, " Chelidonium sinense (Hope)" ( Easton 1992: 35; Easton 1993: 47); Coloane, 30 May 2000, ML Lei (CIAM); Coloane, Cheoc-Van, 15 May 2019, on coastal vegetation, R Perissinotto; Coloane Heights, 22 May 2019, dead on path, R Perissinotto (IZCAS); ibidem 17 Jun 2020, on flowers of Acronychia pedunculata , R Perissinotto; ibidem 29 Jun 2020, R Perissinotto & L Clennell; Coloane Village, 22 May 2020, on flowers of Psychotria serpens , R Perissinotto (IZCAS); Coloane, Ká-Hó coast, 26 May 2020, on flowers of Syzigium buxifolium , R Perissinotto (MACT); ibidem 3 Jun 2020, R Perissinotto; Estrada do Alto de Coloane, 2 May 2021 9:45, jbsandsmacau (https://www.inaturalist.org/observations/77236125); St. Francis Xavier’s Parish [Coloane], 5 May 2021, Lynette Clennell (https://www.inaturalist.org/observations/77700701).

Remarks.

The size of this species in Macau ranges 24-31 mm in total length and 5-7 mm in maximum width. Adults are active during the hottest part of the day during May-June and have been observed while feeding on flowers of Acronychia pedunculata , Psychotria serpens , Dalbergia benthamii , and Syzigium buxifolium (RP pers. obs.). In nearby Hong Kong, larvae of this species have been recorded boring into the wood of citrus plants ( Yiu 2009). More specifically, host plants include Citrus aurantifolia , C. aurantium , C. limonia , C. microcarpa , C. reticulata and Fortunella margarita ( Duffy 1968; Makihara et al. 2008).

Figures

Figure 7. Chelidonium argentatum (Dalman, 1817): dorsal (A) and lateral (B) views of specimens observed on Coloane Heights (22 May 2019) and Coloane Village (22 May 2020), respectively (photographs: LC).