On Bulgarian sawflies, including a new species of Empria (Hymenoptera, Symphyta)
Liston, Andrew ; Prous, Marko ; Macek, Jan
Mitteilungen aus dem Museum für Naturkunde in Berlin. Deutsche entomologische Zeitschrift, 2019-06, Vol.66 (1), p.85-105 [Peer Reviewed Journal]Berlin: Pensoft Publishers
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