First record of the genus Lethades Davis, 1897 from the Oriental region, with description of a new species (Hymenoptera, Ichneumonidae, Ctenopelmatinae)

Abstract

A new species of the genus Lethades Davis, 1897 (Ctenopelmatinae: Pionini), Lethades orientalis Reshchikov & Xu, sp. n., collected in Heishiding Nature Reserve in Guangdong Province, China, is described. This is new record of the genus from China and for the Oriental region also. The species can be distinguished from all other species of the genus by its black metasoma, the presence of an areolet on the fore wing, distinctly pectinate claws with teeth of the hind claw as high as the claw itself, and a complete longitudinal propodeal carina. A key to the world species of the genus is provided.

A remarkable new genus and species of Euryproctini (Hymenoptera: Ichneumonidae, Ctenopelmatinae) from Thailand

“…The tribe Euryproctini Thomson, 1883, together with eight other tribes, comprise the subfamily Ctenopelmatinae Förster, 1869 (Hymenoptera, Ichneumonidae), one of the most poorly known groups of Darwin wasps (Gauld 1997). The Ctenopelmatinae are well represented in all major biogeographical regions, occurring from the Arctic to the tropics, and comprising 1616 species in 111 genera, including 265 species and 19 genera of Euryproctini (Reshchikov 2011(Reshchikov , 2016Kasparyan 2016Kasparyan , 2017Kasparyan , 2018Kasparyan , 2020aKasparyan , 2020bKasparyan , 2021aKasparyan , 2021bKasparyan et al 2016;Lima & Kumagai 2016;Yu et al 2016Yu et al , 2018Yu et al , 2020aYu et al , 2020bYu et al , 2021aYu et al , 2021bReshchikov et al 2017aReshchikov et al , 2017bReshchikov et al , 2017cReshchikov et al , 2019Reshchikov & van Achterberg 2018;Khalaim et al 2019;Sun et al 2019Sun et al , 2020Sun et al , 2021aSun et al , 2021bLi et al 2020;Sheng et al 2020Sheng et al , 2022Watanabe 2021;Li & Sun 2022), excluding genera we consider belonging to Metopiinae Förster, 1869 (Bremiella Dalla Torre, 1901(Quicke et al 2009 and Scolomus Townes & Townes, 1950 (Gauld & Wahl 2006;Araujo et al 2018)).…”