Hemerodromia unilineata Zetterstedt, 1842

Wagner, Rüdiger, Plant, Adrian, Ivković, Marija & Gattolliat, Jean-Luc, 2022, New synonyms and new species of European aquatic dance flies (Diptera, Empididae), Zootaxa 5222 (5), pp. 427-442 : 431

Hemerodromia unilineata Zetterstedt

( Fig. 3 )

Hemerodromia unilineata Zetterstedt, 1842: 263 .

Hemerodromia maculata Vaillant, 1968: 85 . Type locality: Nistos , Pyrénées, France. Syn. nov.

Type material examined. Hemerodromia maculata : HOLOTYPE ♁ (slide mounted): Nistos , Bon Rep [aire], 470 m, 29.VII.[19]66, Pyrénées [ France]. Slide no GBIFCH00601820 ( MZLS).

Additional material examined. France. 1 ♁, province Aude , étang de Gruisseau, 7–10 June 1980, leg. Schacht.

Germany. 1 ♁, Westerwald, reared from pupa, 1954, leg. Dittmar. Greece. 1 ♁, above pass Portaria 15 June 1979, leg. Malicky (all in coll. RW) .

Remarks. The male terminalia of H. unilineata and H. maculata are identical. The differences mentioned by Vaillant (1968) (e.g., a non-arrowhead shaped phallus tip) are non-existent. In the holotype slide, a slight oblique view of the terminalia of H. maculata indicates a clearly arrow-head shaped tip of the phallus ( Fig. 3c , red arrow). In addition, the anterior prolongation of the epandrial lobe is hidden behind the epandrium, which is why it is difficult to identify the structure in Vaillant’s slide mounted holotype. The species is distributed throughout Europe.

Figures

FIGURE 3. Hemerodromia maculata Vaillant. a, slide with holotype; b, holotype, lateral view; c, male terminalia, lateral view lateral view (red arrow: arrow-head shaped tip of the phallus) (photos MZLS).