Thaumastoptera, Starý & Oboňa, 2018

Starý, Jaroslav & Oboňa, Jozef, 2018, Palaearctic species of Thaumastoptera (s. str.) Mik (Diptera: Limoniidae), Zootaxa 4394 (2), pp. 227-234 : 234

Key to Palaearctic Thaumastoptera (s. str.)

1. Upper branch of medial fork (M1+2) very long, about 8 times as long as its petiole, or longer (Fig. 2); femora and tibiae without any dark rings; aedeagus very long, about by one third its length longer than gonocoxite ( Figs. 7, 8 ). For other details of wing and other structures of male terminalia, see Figs. 2, 7, 8.... Thaumastoptera (Thaumastoptera) intermixta Savchenko, 1974

- Upper branch of medial fork (M1+2) at most 5 times as long as its petiole, or shorter; femora and tibiae with dark apical rings; aedeagus much shorter, at most two thirds the length of gonocoxite............................................. 2

2. Wing pattern little-distinct, restricted to darkened, (sub)vertical vein elements (Fig. 1). For other details of wing and male terminalia, see Figs. 1, 5, 6..................................... Thaumastoptera (Thaumastoptera) calceata Mik, 1866

- Wing pattern distinct, almost black, forming numerous spots and seams........................................... 3

3. Wing pattern with two black marks on costa: between tips of R1 and R3 and on R5; upper branch of medial fork (M1+2) about three times as long as its petiole (Fig. 4). For other details of wing and male terminalia, see Figs. 4, 11, 12.......................................................................... .. Thaumastoptera (Thaumastoptera) spathifera sp. n.

- Wing pattern without two marks above; upper branch of medial fork (M1+2) only slightly longer than its petiole (Fig. 3). For other details of wing and male terminalia, see Figs. 3, 9, 10....................................................................................................... Thaumastoptera (Thaumastoptera) insignis Lackschewitz, 1940

Figures

FIGURES 5–8. Male terminalia.5–6: T.(T.) calceata (Czech Republic:Moravia), general view (5) and aedeagal complex (6), dorsal; 7–8: T. (T.) intermixta (Georgia: Adjara), general view (7) and aedeagal complex (8), dorsal. Scale bars 0.25 mm. Abbreviations: gc, gonocoxite; gs, gonostylus; ptg, proctiger; s9, segment 9.