Four new West Palaearctic species and new distributional records of Hybotidae (Diptera).

Megagrapha starki Bartak & Grootaert, sp. nov. (Poland, Russia, Slovakia), Oedalea portugalica Bartak & Grootaert, sp. nov. (Portugal), Hybos conicus Grootaert & Bartak, sp. nov. (Greece, Turkey), and Platypalpus obscuroides Bartak & Grootaert, sp. nov. (Slovakia) are described and illustrated. Diagnostic characters are discussed. The female of Syndyas merzi Shamshev & Grootaert, 2012 is described for the first time. New distributional records are presented: Megagrapha europaea Papp & Foldvari, 2001 is first reported from Slovakia and Syndyas merzi Shamshev & Grootaert, 2012 is first reported from Turkey.