Fateryga A.V. 2026. A new species of Leptochilus de Saussure, 1853 (Hymenoptera, Vespidae, Eumeninae) from Kazakhstan and Russia // Euroasian Entomological Journal. Vol.25. Suppl.1: 51–55 [in English].
T.I. Vyazemsky Karadag Scientific Station – Nature Reserve of RAS – Branch of A.O. Kovalevsky Institute of Biology of the Southern Seas of RAS, Nauki Str. 24, Kurortnoye, Feodosiya 298188 Russia. E-mail: fater_84@list.ru
doi 10.15298/euroasentj.25.S01.08
ABSTRACT. Leptochilus arkadyi Fateryga, sp.n. is described from Kazakhstan and Russia. The female holotype and a male paratype are illustrated; diagnostic characters and differences of the new species from similar L. alpestris (de Saussure, 1855) and L. leleji Fateryga, 2019 are reported. Leptochilus arkadyi was observed in steppe and shrub habitats. Imagines of the new species performed primary nectar robbing from flowers of Linaria popovii Kuprian.
KEY WORDS: Palaearctic region, taxonomy, solitary wasps, vespid wasps, nectar robbing.