M. Koponen 1999: Two species of Trachyusa ruthe, 1854 (Hymenoptera, Braconidae, Alysiinae) in Finland. - Entomologica Fennica 10: 199-200.
Two species of the genus Trachyusa Ruthe, 1854 (Hymenoptera, Braconidae, Alysiinae) are recorded for the first time from Finland: T. aurora (Haliday, 1838) and T. nigrothoracica van Achterberg & O'Connor, 1990. Records and distribution in Finland are presented.