Medetera truncorum Meigen, 1824 (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 : 45

90. Medetera truncorum Meigen, 1824 (Medeterinae) — new to Portugal

( Fig. 4N )

Number of specimens recorded. 421.

Distribution. Europe; also North Africa. Portugal: eight provinces.

Ecology. Rather eurytopic in Portugal and recorded from all macrohabitat categories, in particular from riverbanks. In northwestern Europe, this eurytopic species can be found both on tree trunks and in rather moist open short-grazed habitats ( Pollet & Grootaert 1994, 1996).

Rarity (%). 40.2 (common). Very common (FL).

Activity period. April–October.

Figures

FIGURE 4. Selected Portuguese species. A. Hercostomus germanus (♂); B. Hercostomus pilifer (♂); C. Hydrophorus oceanus (♀); D. Hydrophorus praecox (♀); E. Liancalus virens (♀); F. Machaerium maritimae (copula); G. Medetera ambigua (♂); H. Medetera dendrobaena (♂); I. Medetera flavipes (♂); J. Medetera mixta (♀); K. Medetera muralis (♂); L. Medetera peloria (♂); M. Medetera petrophiloides (♀); N. Medetera truncorum (♂); O. Muscidideicus praetextatus (♂); all photos by Rui An- drade.