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

9. Low face with strong median carina, raised above striae from lateral view (Figs 6C-D); radial cell always more than 2.0 times as long as wide, Rs weakly curved (Fig. 8E); face black in both sexes; Fl of male slightly modified, delicately notched in middle and weakly expanded apically (Fig. 8M) S. reinhardi Mayr, 1872 - Low face with strong median carina, not raised above striae from lateral view (Fig. 6E); radial cell at most slightly more than 2.0 times as long as wide; Rs fairly strongly curved (Fig. 8D); face yellow-red in males; Fl of male expanded apically and basally (Fig. 8N) S. hayneanus (Ratzeburg, 1833) 10. Head, especially of female, trapezoid in front view, gena nearly straight, not converging (Fig. 9A); lateral frontal carinae strong and branched near ocelli; subparallel carinae running transversely between lateral ocelli, and obliquely Fig. 6. Head: S. crassicornis, frontal view (A), S. hayneanus, frontal view (B), S. reinhardi, frontal view (C); S. reinhardi, lateral view (D), S. hayneanus, lateral view (E)