Systenus mallochi MacGowan, 1997 (Medeterinae)

Pollet, Marc, Andrade, Rui, Gonçalves, Ana, Andrade, Pedro, Jacinto, Valter, Almeida, Jorge, Braekeleer, Anja De, Calster, Hans Van & Brosens, Dimitri, 2019, Dipterological surveys in Portugal unveil 200 species of long-legged flies, with over 170 new to the country (Diptera: Dolichopodidae), Zootaxa 4649 (1), pp. 1-69 : 57

134. Systenus mallochi MacGowan, 1997 (Medeterinae) — new to Portugal

Number of specimens recorded. 1.

Distribution. Thus far only recorded from Britain. Portugal: one province (Beira Baixa), first record for continental Europe!

Ecology. The single Portuguese specimen was recorded from a Mediterranean biotope with Quercus suber and Quercus ilex . The species most likely originated from one of these tree species as Systenus species breed in rot-holes and sap-runs of deciduous trees. Systenus mallochi has been retrieved from Quercus petrea , Betula and Ulmus in Britain, and is believed to be more associated with rot-holes than with sap-runs ( MacGowan 1997).

Rarity (%). 1.1 (very rare).

Activity period. April.