Reference:
Schwarz M. & Shaw M., 1999. Western Palaearctic Cryptinae (Hymenoptera: Ichneumonidae) in the National Museums of Scotland, with nomenclatural changes, taxonomic notes, rearing records and special reference to the British check list. Part 2. Genus Gelis THUNBERG (Phygadeuontini: Gelina). – Entomologist's Gazette – 50(2): 117 - 142.
URL:
https://www.researchgate.net/publication/283399068_Western_Palaearctic_Cyptinae_Hymenoptera_Ichneumonidae_in_the_National_Museum_of_Scotland_with_nomenclatural_changes_taxonomic_notes_rearing_records_and_special_reference_to_the_British_check_list_Par