Parasitoids of the Cypress Bark Beetle Phloeosinus bicolor (Brulle, 1832) (Coleoptera: Curculionidae) in Hungary

Ecphylus caudatus Ruschka, 1916, Spathius phymatodis Fisher, 1966 (both Hymenoptera: Braconidae) and Eurytoma blastophagi Hedqvist, 1963 (Hymenoptera: Eurytomidae) were found as new parasitoids of the invasive cypress bark beetle (CBB) Phloeosinus bicolor (Brune, 1832), synonym P. aubei (Perris, 1855) (Coleoptera: Curculionidae: Scolytinae). Ecphylus caudatus and Eurytoma blastophagi as well as Leluthia transcaucasica (Tobias, 1976) (Braconidae), also reared from P. bicolor, are new to the Hungarian fauna. The latter parasitoid species was found to be predominant in samples of P. bicolor collected from galleries of CBB in Budapest in the common juniper trees Juniperus communis L. (Pinales: Cupressaceae) in 2015-2016. A list of parasitoid species is presented and their possible importance for controlling the pest populations is discussed.