Dragan Chobanov presents an overview of changes in the Orthoptera list of Bulgaria in a recently published volume of Articulata. He adds nine species and one subspecies, among which Isophya pavelii (with a redescription), Barbitistes ocskayi , Platycleis nigrosignata, Chorthippus vagans dissimilis and Chorthippus oschei.
Furthermore the list is cleaned up by omitting 15 species and one subspecies. This results in a total of 213 species for Bulgaria.
Source: Chobanov, D. 2009. New records and a new synonym of Orthoptera from Bulgaria. Articulata 24: 79-108.