Pseudexechia (trivittata-group) Kjaerandsen, 2009

Kjærandsen (2009) defined this species group where the species are characterized by the combination of having virtually lost the median ocellus, having straight R₄₊₅ vein (R₄₊₅-bending index 0.96–1.54, 1.14, n = 15, Fig. 3C), less ovate clypeus, and by a number of characters in their male terminalia; above all lacking the characteristically smooth rounded, whitish apex of the dorsal branch of the gonostylus, both the dorsal and ventral branches being moderately elongated. The anterior branch of the gonostylus is forming a large, ventrally directed, subtriangular cushion, with elaborate hooks and finger-like projections and with a distinctly constricted connection towards the internal branch. The hypandrial lobe is narrow rectangular, with two long, parallel branches medially. Tergite IX is longer than wide, and more or less fused into one, subrectangular plate. The pseudocercus is shorter relative to cercus. The female terminalia appears slightly truncated, with one-segmented cercus and short, stout postgenital plate. The trivittata-group is distributed in the Holarctic and the Oriental regions and the included species are: P. latevittata, P. macrocantha, P. sinica, P. subtrilobata, P. trilobata, P. tristriata, and P. trivittata (Fig. 1).