Tachytrechus notatus (Stannius, 1831) (Dolichopodinae)

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 : 58

138. Tachytrechus notatus (Stannius, 1831) (Dolichopodinae) — new to Portugal

( Fig. 6L )

Number of specimens recorded. 13.

Distribution. Europe; also North Africa. Portugal: three northernmost provinces, and Beira Baixa.

Ecology. Recorded from three macrohabitat categories, in particular from agricultural land. About half of the Portuguese specimens were collected at an artificial pond in the outskirts of a town, with Typha sp. and other herbaceous plants on its banks. In northwestern Europe, the species seems to prefer open halophilous biotopes where it is found on both bare muddy soils and hard substrates ( Pollet 2000).

Rarity (%). 5.7 (fairly rare). Very rare (FL).

Activity period. April–June, August–September.

Figures

FIGURE 6. Selected Portuguese species. A. Sympycnus pulicarius (♂); B. Sympycnus simplicipes (♂); C. Syntormon aulicum (♀); D. Syntormon codinai (♂); E. Syntormon denticulatum (♂); F. Syntormon metathesis (♀); G. Syntormon mikii (♂); H. Syntormon pallipes (♂); I. S. pallipes (♀); J. Systenus pallipes (♀); K. Tachytrechus insignis (♂); L. Tachytrechus notatus (♂); M. Teuchophorus spinigerellus (♀); N. Thinophilus flavipalpis (♂); O. Thrypticus bellus (♂); photos by Rui Andrade, except for G by Valter Jacinto.