Medetera diadema (Linnaeus, 1767) (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 : 42

77. Medetera diadema (Linnaeus, 1767) (Medeterinae)

Number of specimens recorded. 6.

Distribution. Europe; also North Africa. Portugal: two northern provinces and Baixo Alentejo in the south in this study, and Algarve (also Dyte unpubl. data).

Ecology. Recorded from a pasture, an orchard and a montado habitat with Quercus suber in Portugal. In northwestern Europe, M. diadema has mainly been found on walls and trunks of deciduous trees in rather dry, grassy biotopes on sandy soil.

Rarity (%). 3.4 (rare). Fairly rare (FL).

Activity period. September–October.