M a t e r i a l. 1 ♀, Donetsk Region, Slaviansk Distr., Bogorodichnoe [49°01'8.28'' N, 37°30'11.43'' E], glades on chalky slopes, 17.07.198 2 (A. Kotenko) (SIZK); 1 ♀, Kyiv Region, Borodianka Distr., rail station “Spartak” [50°40'29.21'' N, 29°44'21.92'' E], deciduous forest, Tal riverside, sweeping on motley grass, 10.07.197 7 (A. Kotenko) (SIZK).

Comment. Only one species of the genus Areopraon is registered in Ukraine. Five species are presented in European fauna (Yu et al., 2012).

С o m p a r a t i v e n o t e s. From other European species of the genus A. silvestre differs by (Tomanović et al., 2006 b): 1) 19–20-segmented (rarely 17-, 18-, 21-segmented) antenna; 2) F1 4.0–4.5 times as long as median width; 3) stigma is 3.0–3.5 times as long as wide; 4) petiole 1.2–1.5 times as long as wide at spiracles level. Ukrainian specimens of A. silvestre (fig. 3, 1–6) with 18–19-segmented antenna, F1 4.3 times as long as median width, stigma is 3.3–3.5 times as long as wide, petiole 1.2–1.3 times as long as wide at spiracles level. Areopraon species may be confused with species of the genus Praon (fig. 3, 7–12). A. silvestre clearly differs from Praon species in: 1) carinated propodeum; 2) subquadrate petiole; 3) sharper and more densely pubescent ovipositor sheath without conical spines on the apex.

H o s t s. Species of Periphyllus genus: Periphyllus acericola on Acer platanoides, A. pseudoplatanus; P. aceris on Acer opalus, A. platanoides; P. hirticornis on Acer campestre, A. opalus; P. testudinaceus on Acer campestre, A. platanoides, A. pseudoplatanus, Acer sp.; Periphyllus sp. on Acer campestre, A. platanoides, A. pseudoplatanus (Starý, 1971, 2006; Tomanović et al., 2006 b; Starý, Lukáš, 2009; Yu et al., 2012).

H a b i t a t s. Mixed forests (Starý, 2006; Starý, Lukáš, 2009), deciduous forests, parks (Starý, 2006), glades on chalky slopes, riversides.

D i s t r i b u t i o n. Ukraine (Donetsk and Kyiv Regions, first records). Europe: France, Switzerland, Germany, Norway, Finland, Serbia, Bulgaria, Czech Republic, Slovakia (Starý, 2006; Starý, Lukáš, 2009; Yu et al., 2012).