Williamstilla guangdongensis ( Lelej, 1992 ) Lelej, 2023

Lelej, A. S., 2023, Review of the tribe Ctenotillini (Hymenoptera: Mutillidae) from Oriental and Palaearctic regions, Far Eastern Entomologist 480, pp. 1-22 : 18-20

Williamstilla guangdongensis ( Lelej, 1992) , comb. n.

Figs 30–35, 44–46

Ctenotilla guangdongensis Lelej, 1992: 282 , ♀, holotype, ♀, China: Prov. Guangdong, Ding Hu Shan , 9.VIII 1956, Mo Monyi [ SCAU]; 2005: 34, ♀ ; Williams et al., 2019: 15 , ♀; Pagliano et al., 2020: 161.

DESCRIPTION. MALE (hitherto unknown). The same as for the genus (see above).

MATERIAL EXAMINED. Paratype of C. guangdongensis Lelej : China, Guangdong, Cebaling, open loess area near river, 21.VI 1990, ♀ (A. Lelej) [ IBSS]. Additional material. China, Yunnan, 17–20.VII 2010, 1♂; 18.VII 2010, 1♂ ( SCAU). Laos, Ban Houaykong , 18–30.IV 1999, 1♂ (O. Šauša) [ IBSS] .

DISTRIBUTION. Cambodia, China (Guangdong, Yunnan), Thailand (Chiang Mai, Kanchanaburi, Loei, Phetchaburi), Vietnam, and Laos ( Williams et al., 2019) .

In the Old World, the Afrotropical Region has more than twice as many Mutillidae species or subspecies (~1500) as each of the other three Regions (Palaearctic, ~600 spp.; Oriental, ~700 spp.; Australasian, ~300 spp.). In the tribes Ctenotillini , Zeugomutillini and Pristomutillini this trend is much increase, 185 species of 204 are distributed in the Afrotropical Region ( Table 1) and the distribution of the Pristomutillini is limited by the Afrotropical Region. The tribe Ctenotillini represents in the Palaearctic by one genus with one species only. Among seven tribes of the subfamily Mutillinae the plesiomorphic Pristomutillini is basal ( Waldren et al., 2023) while Zeugomutillini and Ctenotillini are close to the apomorphic Smicromyrmini. The male of the genus Lehritilla (tribe Ctenotillini ) has gonostylus with strong short dorsal process and slender long ventral one. Such shape of gonostylus remind the bilobed gonostylus of the Neotropical genus Horcomutilla Casal, 1962 (Sphaeropthalminae: Pseudomethocini) ( Cambra et al., 2022). The bifurcation and reduction of the gonostylus are known in the spider wasps Priocnemis hyalinata species-group ( Pompilidae : Pepsinae) ( Loktionov & Lelej, 2017).