Key to Egyptian species of genus Hormius Nees
1. Ovipositor relatively long, sheath slender throughout (Fig. 7A,C); length of ovipositor sheath about 0.3× length of fore wing, 2.5 × width of T1 apically (Fig. 7C) and about 0.35 × length of metasoma (Fig. 7A,C); vein 1-M of fore wing regularly and distinctly curved (Fig. 7B); mesosoma uniformly yellowish or reddish but not brownish, without any black parts (Fig. 7A); Length of T1 about 1.2 × its apical width (Fig. 9C)............................................ H. similis Szépligeti
- Ovipositor short, sheath somewhat thick near to middle (Figs 4A, 5C, 6C, 9F); length of ovipositor sheath 0.14–0.2 × length of fore wing, 0.8–1.5× width of T1 apically (Figs. 4A, 6C) and about 0.26–0.29× length of metasoma (Figs. 4A, 6A, C); vein 1-M of fore wing more or less straight (Fig. 4B); mesosoma brownish (never yellowish), with some black (Figs 4A, 6A); length of T1 either as long as, 1.5 ×, or 2.6 × its apical width (Figs 6C, 9A, B)............................................. 2
2. Rs of fore wing not reaching wing apex (Fig. 6B); metasoma relatively long, usually parallel-sided, up to 1.7 × as long as mesosoma (Fig. 6A); length of metasoma 2.6–3.2 × as long as its maximum width (Fig. 6A, C)......... H. sculpturatus Tobias
- Rs of fore wing reaching wing apex (Figs 4B, 5A); metasoma shorter, oval to pear shape (Figs 4A, 5B); length of metasoma 1.44–2.4× as long as its maximum width (Figs 4A, 5B)....................................................... 3
3. Metasoma pear-shaped, broad at base and pointed apically, densely setose on posterior tergites laterally (Fig. 5B); pterostigma uniformly yellow (Fig. 5A); vein r-m of fore wing absent (Fig. 5A); propodeum smooth at base, with dense network of longitudinal and transverse carinae leading to the formation of many areolae, integument smooth in between (Fig. 9E), mesosoma uniformly reddish brown....................................................... H. propodealis (Belokobylskij)
- Metasoma oval-shaped, not pointed posteriorly (Fig. 4A); pterostigma yellow at basal half, and dark brown apically (Fig. 4B); vein r-m of fore wing present but not tubular (Fig. 4B); propodeum coarsely rugose (Fig. 3E); mesosoma reddish brown with some black (Fig. 4A).................................................................. H. moniliatus (Nees)