S. Mahunka szerk.: Folia Entomologica Hungarica 64. (Budapest, 2003)

fork proximal to M fork. M ratios: 43:85, 43:68, Cu ratios: 61:102, 61:72 units (1 unit = 0.02 mm). Macrotrichia: M petiole: 0; Ml: +; M2: +; Cu petiole: +, Cul(for me: M

3

): +; Cu2 (for me: Cu,): +. CuP (actually Cu

2

) present as a long true vein, almost reaching wing margin. Halter pale yellowish. Hypopygium (Figs 1-5). Abdominal tergite 8 (Fig. 5) with large lateral lobes, both bearing 30-32 long setae, i.e. same as in Fig. 776 of Väisänen (1984) for M. punctata. Tergite 9 (Fig. 1) with a distinct medial processus and also with distinct lateral appendages. Tergal lateral appendages not darker than other parts of hypopygium. Processus (Figs 1-2) not bilobed or even not divided sagittally as in M. punctata, laterally with high number of slightly anteriorly directed black thorns (short thick pointed setae). Dorsal lamella of cerci (or proctiger) consists of a membraneous medial part stiffened by a sagittal, darker pigmented sclerite, and a pair of extremely large hairy lamellae, convex centrally (this convexity is expressed by the radial arrangements of setulae on their central part, Fig. 1). Gonocoxae (sternal synsclerite, Fig. 4) rather large, without strong dark subapical spines on submedian appendages nor on lateral prolongations. Lateral prolongations of gonocoxae (sternal lateral appendages) extensively setose, comparatively broad, long, rounded apically. Gonocoxal lobes (sternal submedian appendages) not fused, Figs 4-5. Mycomya vaisanenisp. n., holotype male, genitalia-4: left half of hypopygium (gonocoxa, gonostylus and apex of aedeagus), ventral view; 5: tergite 8. Scale: 0.2 mm