Dolichopus diadema Haliday, 1832 (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 : 34

43. Dolichopus diadema Haliday, 1832 (Dolichopodinae)

( Fig. 3G )

Number of specimens recorded. 6.

Distribution. Europe; also North Africa. Portugal: three northern and central coastal provinces in this study, and Algarve (see also Dyte unpubl. data).

Ecology. Humid marshland habitats in the coastal region, which corresponds exactly with its preference for salt marshes and brackish marshes in northwestern Europe ( Pollet 2000).

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

Activity period. July, September.

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.