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 137. Tachytrechus insignis (Stannius, 1831) (Dolichopodinae) — new to Portugal ( Fig. 6K ) Number of specimens recorded. 22. Distribution. Europe; also North Africa. Portugal : 5 provinces, all over the country (also Dyte unpubl. data). Ecology. Recorded in Portugal from different kinds of forests, and a riverbank. Most specimens were retrieved from a Mediterranean habitat with Quercus suber and Quercus ilex . In northwestern Europe, this species is restricted to bare shallow banks of dune slacks and lakes on sandy soil ( Pollet 2000 ). Rarity (%). 8.0 (fairly rare). Rare (FL). Activity period. March–May, August–October.