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New distribution data and taxonomic changes to the checklists of two Darwin wasp subfamilies, Poemeniinae Xoridinae, in Poland Ukraine are provided. Two poemeniine species, Neoxorides montanus Oehlke, 1966 N. striatus Johansson, 2020, added on Ukrainian list. Another opacus (Kokujev, 1903), with its first authenticated host record, Xylotrechus rusticus (Linnaeus, 1758), is a new species record ...

A new species is described, Xorides benxicus Sheng, sp. n., reared from the cerambycid twig-boring pest of Robinia pseudoacacia Linnaeus, Pterolophia alternata Gressitt, 1938, in Benxi County, Liaoning Province, China. A key is given to the species similar to Xorides benxicus Sheng, namely Xorides asiasius Sheng & Hilszczański, 2009, Xorides cinnabarius Sheng & Hilszczański, 2009 and Xorides sa...

The parasitoid complex associated with Monochamus galloprovincialis (Olivier), vector of the pine wood nematode, is discussed. Four species of the family Braconidae and one Ichneumonidae were found associated with Monochamus galloprovincialis in Portugal, namely Atanycolus denigrator (Linnaeus), Atanycolus ivanowi (Kokujev), Cyanopterus flavator (Fabricius), Doryctes striatellus (Nees) (Braconi...

The Ukrainian Xoridinae list containing 28 species is reviewed. Four species, Xorides flavotibialis Hilszczanski, 2000, X. hedwigi Clement, 1938, Xorides rufipes (Gravenhorst, 1829), and X. rusticus (Desvignes, 1856) are recorded in the Ukrainian fauna for the first time. Agrilus biguttatus F. is recorded as a host of Ischnoceros caligatus (Gravenhorst, 1829) for the first time.

Neuf espèces d’Hyménoptères parasites (Braconidae, Ichneumonidae) sont identifiées pour la première fois en Belgique: Atanycolus denigrator (Linnaeus 1758), Cosmophorus regius Niezabitowski 1910, Aleiodes dissector (Nees, 1834), Rhimphoctona pectoralis (Kriechbaumer, 1890), rufocoxalis (Clément, 1924), xoridiformis (Holmgren, 1860), Xorides alpestris (Habermehl, 1903), brachylabis 1889) et rufi...

The Darwin wasp Xorides ater is a solitary idiobiont ectoparasitoid of wood-boring beetle larvae. It occurs across the Palaearctic, and in Switzerland seems to be restricted areas above 980 m altitude. Very little known about its biology behaviour. We here report three separate instances female X. mating simultaneously with two males, observed on same occasion Picea abies woodpile near Lenk, Sw...