Machaerium maritimae Haliday, 1832 (Hydrophorinae)

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 : 41

73. Machaerium maritimae Haliday, 1832 (Hydrophorinae)

( Fig. 4F )

Number of specimens recorded. 27.

Distribution. Restricted to northwestern part of Europe; also North Africa. Portugal: four provinces all over the country (this study), and Baixo Alentejo ( Naglis & Barták 2015) (also Dyte unpubl. data).

Ecology. All sampling sites in Portugal are situated in the coastal region, which corresponds entirely with the ecological profile of this halobiont species in northwestern Europe ( Pollet 2000).

Rarity (%). 6.9 (fairly rare). Very rare (FL).

Activity period. May–September.

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.