Muscidideicus praetextatus (Haliday, 1855) (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 : 45

91. Muscidideicus praetextatus (Haliday, 1855) (Dolichopodinae)

( Fig. 4O )

Number of specimens recorded. 5.

Distribution. Restricted to the western part of Europe (from Denmark to Portugal). Portugal: two northern coastal provinces in this study and Algarve (Dyte unpubl. data).

Ecology. In Portugal most specimens of this species were encountered in a sandy spit at the mouth of the river Douro, though very disturbed by human activity and exotic vegetation. In northwestern Europe, it is restricted to saltmarshes, and adjacent wet coastal dunes ( Pollet 2000).

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

Activity period. August–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.