Rhorus

Kasparyan, D. R., Choi, Jin-Kyung & Lee, Jong-Wook, 2016, New species of Rhorus Förster, 1869 (Hymenoptera: Ichneumonidae: Ctenopelmatinae) from South Korea, Zootaxa 4158 (4), pp. 569-576 : 574

Key to South Korean species of Rhorus

1. Metasoma and legs entirely yellowish red. Face (except for malar space) and clypeus yellow. Wings brownish ( Figs 4, 5 )............................................................................. Rh. jinjuensis (Lee et cha, 1993)

- Metasoma predominantly black; legs at least with hind coxa black.............................................. 2

2. Tergite 1 about 1.2–1.5 × as long as wide. Tergites 2–4 rugose or granulate, without distinct punctures ( Fig. 17 ). Face black with clypeus yellow ( Fig. 10 ). Hind femur and hind tibia reddish ( Fig. 9 ). Claws weakly pectinate..................................................................................................... Rh. takagii ( Uchida, 1931) .

- Tergite 1 slender, at least 2 × as long as wide. Tergites 2–4 smooth, finely punctate. Face and clypeus yellow. Hind femur completely and at least apical 0.3 of hind tibia black. Claws densely pectinate, with about 12 or more teeth on fore claw....... 3

3. Tergite 1 with dorsolateral carina complete. Third lateral areas of propodeum separated anteriorly by carina ( Fig. 3 ). Fore claw with about 13 teeth. Apical half of scutellum yellow ( Fig. 3 ). Scape and pedicel ventrally, malar space, mandible and cheeks light yellow ( Fig. 2 ). Tegulae and all trochanters light yellow ( Fig. 1 ). Hind tibia whitish yellow, blackish at extreme base and in apical 0.4. Ovipositor sheath. blackish ( Fig. 1 )............................................ Rh. koreensis sp. nov.

- Tergite 1 with dorsolateral carina beyond spiracle absent. Third lateral areas of propodeum not separated anteriorly by carina. Fore claw with about 20 teeth ( Fig. 8 ). Scutellum completely black. Scape, pedicel, malar space, mandible and cheeks blackish ( Fig. 7 ). Tegulae and all trochanters blackish. Hind tibia predominantly blackish with yellowish weak ventral marking in middle part ( Fig. 6 ). Ovipositor sheath blackish brown with reddish brown apex.............. Rh. nigritarsis (Hedwig, 1956)

Figures

FIGURES 1 – 5. Rhorus koreensis sp. nov. (1 – 3) and Rh. jinjuensis (Lee et Cha, 1993) (4, 5), females. 1 & 4, habitus, lateral view; 2 & 5 head, frontal view; 3, hind part of mesosoma and tergite 1, dorsal view. Scale bars: 1 mm = 1, 4; 0.2 mm = 2, 3, 5.

FIGURES 9 – 17. Rhorus takagii (Uchida, 1931). female, holotype. 9, habitus, lateral view; 10, head, frontal view; 11, head, dorsal view; 12, tergite 1 of metasoma. lateral view; 13, mesosoma, lateral view; 14, head and mesoscutum, dorsal view; 15, areolet in fore wing; 16, hind part of mesosoma, dorsal view; 17, metasoma, dorsal view. Scale bars: 1 mm = 9; 0.5 mm = 13 – 17; 0.2 mm = 10 – 12.

FIGURES 6 – 8. Rhorus nigritarsis (Hedwig, 1956), female. 6, habitus, lateral view; 7, head, frontal view; 8, claw of anterior tarsus. Scale bars: 1 mm = 6; 0.5 mm = 7.