* Hyperdiplosis bryanti Felt, 1913

Material: VE, Faerder: Mågerø, 59.15231°N 10.43254°E ± 10m, 10 August 2021, Swarming around fresh Quercus robur stumps, 3M, leg. AF, coll. Private.

Biology: Nothing seems to be known about the biology of this species. Our specimens (three males) were captured in the evening, swarming around freshly cut oak stumps where also females of Xylodiplosis sp. were ovipositing. The species was identified based on the characteristic aedeagus, which is long and narrow with a threeforked apex (illustrated in Plakidas (2019) under the name Hyperdiplosis acuminata).

Distribution: UK, Germany, Norway and the USA. The species is possibly alien in Europe.