Fukienogomphus prometheus ( Lieftinck 1939 )

Wilson, Keith Duncan Peter & Xu, Zaifu, 2009, Gomphidae of Guangdong & Hong Kong, China (Odonata: Anisoptera) 2177, Zootaxa 2177, pp. 1-62 : 15

Fukienogomphus prometheus ( Lieftinck 1939)

Figs. 4 (a–h)

Gomphus prometheus Lieftinck 1939 : Lieftinct (1939: 278–281, figs 1–2, type-loc. Fujian).

Fukienogomphus prometheus Chao (1954: 39–40 , figs 140–153, Fujian); Matsuki (1978: 139–142, fig. 4 (larvae, Taiwan); Lieftinck et al. (1984: 34–35, Taiwan); Sui & Sun (1984: 61–63, figs 43a–f); Chao (1984a: 61, Fujian, Guangdong); Chao (1990: 212–214, 464, figs 1–11, Fujian); Zhang (1999: 229–230, figs 24.54a–I, Fujian, Guangdong & Taiwan); Hua (2000: 11, Fujian, Guangdong, Hainan, Hunan, Jiangxi & Taiwan); Wang (2000: 200– 201, ♂, ♀, photo, Taiwan); Wilson & Reels (2001: 183–184, fig. 101, Hainan); Fellowes et al. (2003a: 36, Guangdong: Henglongbei, Nanling).

Specimens: 5 ♂, Henglongbei, Shikengkong (Babaoshan), 28 vi 2000, coll. KW; 2 ♂ (No. 21896), 1 ♀ (No. 21938), Chebaling 26 v 2002, coll. ZX; 1 ♂,

Remarks: Males possess a pair of small sharp spines above the lateral ocelli. This feature is also possessed by the female but in addition there are of pair of large, stout tubercles immediately above the lateral ocelli ( Fig. 4a). Lieftinck (1939) described and illustrated the male but he did not illustrate the female and said his female was discoloured, with a broken abdomen and distorted terminal segments. Wilson & Reel's (2001) illustrated female from Hainan and Chao's (1954) illustrated female abdomen from Fujian do not feature a highly constricted abdominal S9–10, as observed in the Guangdong specimen figured here ( Figs. 4d–e). Considering Lieftinck's remarks in his original description, (“terminal segments distorted”) his Fujian female may also have featured a markedly constricted S9–10. It may represent the mature female condition rather than an abnormality. Caudal male appendages are illustrated in Figs. 4f–g. Fukienogomphus choifongae Wilson & Tam (2006) , recently described from Hong Kong, is a much smaller species with male hindwing 33.0–35.0 mm compared to 40–42 mm in F. prometheus . The metakatepistenum is uniformly black in F. choifongae compared to predominantly yellow in F. prometheus ( Fig. 4c).

Distribution: China (Fujian, Guangdong, Hainan, Hunan, Jiangxi & Taiwan).