Dipterological surveys in Portugal unveil 200 species of long-legged flies, with over 170 new to the country (Diptera: Dolichopodidae) Author Pollet, Marc Author Andrade, Rui Author Gonçalves, Ana Author Andrade, Pedro Author Jacinto, Valter Author Almeida, Jorge Author Braekeleer, Anja De Author Calster, Hans Van Author Brosens, Dimitri text Zootaxa 2019 2019-08-01 4649 1 1 69 journal article 25532 10.11646/zootaxa.4649.1.1 5ddee453-14a5-41ea-bd4d-046468d3651f 1175-5326 3357623 F532DBB2-FBC4-41B2-9A5C-D98B55CF8717 72. Liancalus virens (Scopoli, 1763) (Hydrophorinae) — new to Portugal ( Fig. 4E ) Number of specimens recorded. 25. Distribution. Europe; also North Africa. Portugal : six northern and central provinces. Ecology. Recorded from five macrohabitat categories, with most records from forests and riverbanks, and none from the littoral zone and dune biotopes. All over Europe, this species is found near running water, very often on vertical surfaces, ranging from seepages (even fountains in cities) to the riverbanks at rapids, and along fast–flow-ing rivers ( e.g ., on bridge pillars) ( Pollet 2000 ). In Croatia , the species clearly preferred riverbeds to riverbanks and springs ( Pollet & Ivković 2018 ). Rarity (%). 17.2 (common). Extremely rare (FL), however, recent citizen science efforts produced a surprising amount of additional data from Flanders ( Pollet & Maes 2019 ). Activity period. April–July, September.