Trioxys curvicaudus Mackauer, 1967

M a t e r i a l. 1 ♀, Kyiv: Osokorky [50°23'8.23'' N, 30°35'36.01'' E], near Dniper river, on Aeculus hippocastaneum, 23.04.200 4 (Sviridov) (SIZK) .

С o m p a r a t i v e n o t e s. T. curvicaudus (fig. 10, 1–5) is very similar to T. pallidus (Haliday) (fig 10, 6–10), and differs by: 1) stigma is 2.5 as long as wide; 2) narrower central areola on propodeum; 3) short ovipositor sheath with basal part longer or almost equal to apical part; 4) prongs are slightly curved upward in their distal part, with 2 setae on dorsal side.

H o s t s. Eucallipterus tiliae on Tilia cordata, T. tomentosa, Tilia sp.; Hoplocallis picta on Quercus ilex; Mesocallis sawashibae on Quercus sp.; Myzocallis carpini on Carpinus sp., M. coryli on Corylus avellana, M. komareki on Quercus coccifera, M. walshii on Quercus rubra; Tinocallis platani on Ulmus sp., T. zelkowae on Quercu s sp.; Tuberculatus annulatus, Tuberculatus sp. on Quercus sp.; Tuberculoides sp. on Quercus sp. (Tobias, Chiriac, 1986; Starý, 2006; Davidian, 2007; Starý, Lukáš, 2009; Yu et al., 2012).

H a b i t a t s. Deciduous forest, parks, roadsides (Starý, 2006; Starý, Lukáš, 2009).

D i s t r i b u t i o n. Ukraine (Kyiv Region, first record). Europe; Eastern Asia (South Korea); North America (U.S.A.) (Yu et al., 2012).