Stromatium longicorne (Newman, 1842)

Fig. 20

Arhopalus longicornis Newman, 1842a: 246. TL: Philippines (Manila); TD: NHMUK

Stromatium asperulum White, 1855: 300. TL: China (Hong Kong); TD: NHMUK

Distribution.

Palaearctic Region: China (Fujian, Guangdong, Guangxi, Guidzou, Hainan, Hong Kong, Inner Mongolia, Jiangxi, Jilin, Liaoning, Shandong, Taiwan, Yunnan, Zhejiang); India (north); Japan; Nepal; (Yiu 2009; Lin and Yang 2019; Danilevsky 2020). Oriental Region: India (Assam); Indonesia (Kalimantan, Sunda Islands); Laos; Malaysia; Myanmar; Thailand; Vietnam (Hua 2002; Nga et al. 2014). Nearctic Region: USA (intercepted) ( Monné and Giesbert 1994).

Macau records.

Great Taipa, 6 Jun 2019, on floor in ablution block, R Perissinotto & L Clennell (IZCAS); Coloane Village, 29 May 2020, on mosquito trap of ablution block, R Perissinotto & L Clennell (IZCAS); ibidem 1 Jun 2020, R Perissinotto & L Clennell (MACT); Taipa, Minho Str., 23 May 2020 19:58, Eric Kwan (https://www.inaturalist.org/observations/46988050); Taipa, Pac On Road, 28 May 2020 22:20, Eric Kwan (https://www.inaturalist.org/observations/47699525); Coloane Village, 20 May 2021, Lynette Clennell (https://www.inaturalist.org/observations/79509103).

Remarks.

In Macau, adults appear to be active only in late spring and range in total length 23-28 mm and 6.5-8 mm in maximum width. The species is exclusively nocturnal and readily attracted to artificial lights. The larvae apparently bore into lumber and a variety of trees, such as Machilus spp., Morus alba and oaks (Yiu 2009). The species was introduced into Australia already in the 1960s (Duffy 1963) and adult specimens emerging from wood furniture and other processed timber have recently been intercepted in several European countries (Cocquempot et al. 2014).