The first record of the highly derived genus Oligoneurus Szépligeti, 1902 (Hymenoptera, Braconidae, Ichneutinae, Muesebeckiini) from Eocene Danish amber with description of a new species

A new species of the braconid parasitoid subfamily Ichneutinae, Oligoneurus eocenus Belokobylskij, sp. nov., from late Eocene Danish amber is described and illustrated. The specimen is the first representative (female) of the tribe Muesebeckiini and the genus Oligoneurus Szépligeti, 1902 documented in the fossil record. The taxonomic position and composition of Ichneutinae, taxonomical position of Oligoneurus and known fossil ichneutine members are also discussed. The half of Danish hymenopteran genera are now unknown from Baltic amber.