Micropezidae, Loew, 1861

Marshall, S. A., 2019, Micropezidae (Diptera, Nerioidea) of Mauritius, with a description of Paraeurybata new genus, Zootaxa 4624 (4), pp. 576-582 : 577

Key to Micropezidae of Mauritius

1. Katepisternum with vertical row of at least 10 setae along posterior margin ( Fig. 1H ). Surstylus absent. Wing membrane either dark with circular clear maculae over crossveins or mostly hyaline with transverse discal band........................ 2

- Katepisternum with 2–3 large posterodorsal setae and a few lower setae in loose cluster, not forming a row. Surstylus present ( Fig. 1D ). Wing membrane almost entirely dark except for narrow transverse clear discal band (sometimes reduced or broken) ( Fig. 1C )......................................................... Paraeurybata taeniata (Macquart) , n. comb.

2. Wing membrane dark with circular, clear maculae over crossveins ( Fig. 3A ).................................................. Courtoisia apicalis (Macquart) (rare, possibly extinct; known from Réunion and one specimen from Mauritius)

- Wing membrane mostly clear with transverse discal band ( Fig. 1G )............................................................................ Mimegralla splendens (Wiedemann) (coastal Mauritius, probably introduced from India)

Figures

FIGURE 1. Paraeurybata taeniata (Macquart), n. comb. A, female ovipositing; B, female; C, wing of male; D, apex of male abdomen, right; E, male; F, head of male. Mimegralla splendens (Wiedemann). G and H, in copula.

FIGURE 3. A, Courtoisia apicalis (Macquart) holotype. B, Courtoisia trinotata (Macquart) lectotype. Specimens from the Bigot collection, Oxford. Photographs by Zoë Simmons