Cephalallus unicolor unicolor (Gahan, 1906)

Fig. 6

Criocephalus unicolor Gahan, 1906: 97. TL: India (North Khasi Hills); TD: NHMUK.

Distribution.

Palaearctic Region: China (Fujian, Guangdong, Guizhou, Hainan, Henan, Hong Kong, Hubei, Hunan, Jiangsu, Jiangxi, Jilin, Sichuan, Taiwan, Yunnan, Zhejiang); Japan; Mongolia; North and South Korea (Yiu 2009; Lin and Yang 2019; Danilevsky 2020). Oriental Region: India (Assam); Laos; Myanmar (Kariyanna et al. 2017).

Macau records.

Macau, University of East Asia, Block I, 17 Aug 1989, ER Easton leg (UMEC); ibidem Block F, 25 Apr 1991, ER Easton leg (UMEC); ibidem [no data], ER Easton leg (UMEC); Great Taipa, 11 Apr 2019, R Perissinotto; Coloane Heights, A-Má Statue, 1 Apr 2020, R Perissinotto; ibidem 9 Nov 2020, under spotlight, R Perissinotto (IZCAS); ibidem, A-Má Cultural Village, 17 May 2020, R Perissinotto & L Clennell (MACT); Coloane Village, 14 May 2020, under light in ablution block, R Perissinotto & L Clennell (MACT); [Taipa] Our Lady of Carmel’s Parish, 4 Apr 2020 22:59, Kit Chang (https://www.inaturalist.org/observations/41601849); ibidem 4 Apr 2020 21:15, Kisu Wong (https://www.inaturalist.org/observations/49550023); ibidem 23 Jul 2020 1:24, Kit Chang (https://www.inaturalist.org/observations/53971681); ibidem 3 Apr 2021 16:27, Lynette Clennell (https://www.inaturalist.org/observations/72763759); [Coloane] St. Francis Xavier’s Parish, 26 Apr 2020 23:52, Kisu Wong (https://www.inaturalist.org/observations/43868265); ibidem Apr 27 2020 12:45, Kit Chang (https://www.inaturalist.org/observations/43868614); ibidem 30 May 2020 1:22, Kit Chang (https://www.inaturalist.org/observations/47765485).

Remarks.

This species varies remarkably in size, from 12-21 mm in total length, to 3-5 mm in maximum width. In Macau, adults are active throughout the warmer parts of the year, from April till November. Larvae are reported to develop in pine trees, Pinus spp. (Yiu 2009; Lim et al. 2014) but have not been reported as causing damage to plantations or becoming invasive.