Arge Schrank, 1802

Arge Schrank, 1802 View in CoL

Figs 1–2, 10, 12 View Fig View Figs 2–15 .

Type species: Tenthredo enodis Linné, 1767 .

Body size 6.5–12.0 mm. Right mandible without basal tooth. Antennae of males simple. Fore wings with 4 cells Rs; cell R closed; vein Sc present; vein 2r–m present; veins B and M join up at same point on vein R; cell 2A closed. Cell A of hind wing closed. Claws simple. Middle and hind tibiae with preapical spurs. The colour is varied, often with a metallic sheen.

The genus is widely distributed in the Palaearctic, Nearctic, Oriental, Neotropical,Afrotropical and Australasian regions. Number of species: World — 396; Palaearctic — 187. Since the publication of the world catalogue of sawflies [ Taeger et al., 2010], 46 valid species have been described, of which 17 are noted in the Palaearctic [ Koch, Goergen, 2010; Vasilenko, 2010; Wei, Niu, 2010; Koch, 2011, 2013; Koch, Eardley, 2011; Shinohara et al., 2011a, b, 2015; Hara et al., 2012; Hara, Shinohara, 2012 a, b, 2013, 2014; Koch, Liston, 2012a, b; Shinohara, Hara, 2012, 2013, 2017, 2018; Wei et al., 2013; Choi et al., 2016; Du et al., 2018; Chen et al., 2020; Hara et al., 2020; Kaplan, Haris, 2021; Wan et al., 2022; Basov, Vasilenko, 2024]. Another 11 species, A. laticincta Wei, 2010 ; A. renemalaisei Wei, 2010 ; A. qini Wei, 2010 ; A. nigroharpa Wei, 2010 ; A. shenae Wei, 2010 ; A. xini Wei, 2010 ; A. longiflagella Wei, 2010 ; A. fanae Wei, 2010 ; A. striatitergita Wei, 2010 ; A. rugosipleura Wei, 2010 ; and A. stenolutea Wei et Niu, 2010 , have been reported as new [ Wu et al., 2010] but their descriptions have not been published to date, and they should be treated as nomina nuda.