Milesia, Latreille, 1804

Bot, Sander, Mengual, Ximo, Steenis, Jeroen van & Skevington, Jeffrey H., 2022, A new species of the genus Milesia Latreille (Diptera: Syrphidae) from Crete, European Journal of Taxonomy 846, pp. 110-125 : 120

Key to species of Milesia occurring in Europe

1. Terga 2 and 3 black with pair of yellow rectangular maculae anteriorly ( Fig. 5 ); clypeus black ....... .......................................................................................................... M. semiluctifera (Villers, 1798)

– Terga 2 and 3 with rather diffuse colour pattern, mainly dark brown, red or yellow, if black is present, it is in the form of well demarcated black vittae ( Figs 2–4 ); clypeus yellow-brown .......... 2

2. Terga 2 and 3 without well-demarcated black pattern ( Fig. 4 ); yellow pollinosity on scutum is less extensive on posterior part, creating a colour contrast between yellow pollinose pattern on anterior part and orange brown ground colour pattern on posterior part; base and anterior part of wing yellow, creating colour contrast with slightly infuscated remainder of wing ................................................. .................................................................................................. M. crabroniformis ( Fabricius, 1775)

– Terga 2 and 3 with well-demarcated black pattern ( Figs 2–3 ); scutum with heavy yellow pollinose pattern on both anterior and posterior part; base of wing only slightly yellow, wing appearing all hyaline, without colour contrast ............................................. M. cretica Bot & van Steenis sp. nov.

Figures

Fig. 5. Milesia semiluctifera (Villers, 1798), ♂, (SBH), habitus dorsal. Collected in Greece, Lesbos, 14 September 2019, leg. and coll. S. Bot.

Fig. 2. Milesia cretica Bot & van Steenis sp. nov. ♂, (SBH), habitus dorsal. Collected on Crete, Imbros Gorge, 17 October 2017, leg. and coll. S. Bot.

Fig. 3. Milesia cretica Bot & van Steenis sp. nov., paratype, ♀ (SBH), habitus dorsal. Collected on Crete, near Lakkoi, 9 October 2021, leg. and coll. S. Bot.

Fig. 4. Milesia crabroniformis (Fabricius, 1775), ♂, (SBH), habitus dorsal. Collected in France, Midi- Pyrénées, 4 August 2010, leg. and coll. S. Bot.