Dolichopus atratus Meigen, 1824 (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 : 33

41. Dolichopus atratus Meigen, 1824 (Dolichopodinae) — new to Portugal

( Fig. 3F )

Number of specimens recorded. 4.

Distribution. Europe, excl. northern Europe. Portugal: two northern provinces.

Ecology. The two sites of this species in Portugal can be described as (i) a riparian corridor with Populus sp. and Salix sp. amid meadows, and (ii) a mountainous location crossed by a small river with Salix sp. , Fraxinus sp. , Acacia sp. and Alnus glutinosa on its banks. Eucalyptus sp. , Ulex sp. , Pterospartum tridentatum , Calluna vulgaris and other species of heather were common up the mountain slope. In northwestern Europe, this species has a distinct preference for open humid oligotrophic biotopes; e.g., heathlands ( Pollet 2000).

Rarity (%). 2.3 (rare). Rare (FL).

Activity period. April–May.

Figures

FIGURE 3. Selected Portuguese species. A. Chrysotus blepharosceles (♀); B. Chrysotus cilipes (♂); C. Chrysotus laesus (♂); D. Diaphorus exunguiculatus (♂); E. Dolichopus andalusiacus (♂); F. Dolichopus atratus (♂); G. Dolichopus diadema (♂); H. Dolichopus latilimbatus (♂); I. Dolichopus nubilus (♂); J. Dolichopus plumipes (♂); K. Dolichopus signifer (♂); L. Dolichopus tanythrix (♀); M. Gymnopternus cupreus (♂); N. Gymnopternus silvestris (♂); O. Hercostomus appendiculatus (♂); photos by Rui Andrade, except for C by Leo Verdoodt.