On Bulgarian sawflies, including a new species of Empria (Hymenoptera, Symphyta)

Thirty-nine species of sawfly (Symphyta) are recorded for the first time in Bulgaria. Most of these were collected during early spring of 2018, in the south-east of the country (Burgas and Varna Provinces). Empriaaridicola Macek & Prous, sp. nov. is described as new to science from specimens collected in several central, east and south European countries. Lectotypes are designated for Poecilosomaparvula Konow, 1892, Empriapravei Dovnar-Zapolskij, 1925 and E.pseudoklugi Dovnar-Zapolskij, 1929. Empriapravei and Sciapteryxbyzantina Benson, 1968 are at present only known in Europe from the coastal zone of the Black Sea. The new Bulgarian records of Hoplocampacantoti Chevin, 1986 and Neomessasteusloffi (Konow, 1892) represent large extensions in their recorded ranges, previously comprising respectively only northern France, and north-eastern Germany. Possible host plant associations are noted for several species, based on observations of adults.