Probles (Euporizon) korusa Khalaim & Kim

Khalaim, Andrey I., Balueva, Ekaterina N., Kim, Ki-Beom & Lee, Jong-Wook, 2013, Three new species of the genus Probles Foerster (Hymenoptera, Ichneumonidae, Tersilochinae) from South Korea, ZooKeys 348, pp. 77-88 : 82-85

Probles (Euporizon) korusa Khalaim & Kim sp. n. Figs 11-18

Holotype.

Female (Fig. 11), SOUTH KOREA: Gyeongsangbuk-do, Cheongdo-gun, Unmun mueon, Ssalbawi, 35°38'08"N, 129°01'27"E, 29. VI– 10.VII.2012, coll. J.W. Lee (YNU).

Paratypes.

SOUTH KOREA: Chungcheongbuk-do: Danyang-gun, Cheondong-ri, Mt. Sobaeksan, 37°00'N, 128°31'E, Malaise trap, 21. VI– 6.VII.2006, coll. J.W. Lee, 1 ♀ (YNU). Gyeonggi-do: Yangpyeong, Yongmun, Yeonsu, Mt. Yongmunsan, 324 m, 37°31'48.9"N, 127°34'23.8"E, Malaise trap, 11-25.VI.2009, coll. J.O. Lim, 1 ♀ (YNU). Mt. Yongmunsan, Yeonsu, Yongmun, Yangpyeong, 324 m, 37°31'48.9"N, 127°34'23.8"E, 11-25.VI.2009, coll. J.W. Lim, 1 ♀ (ZISP). Gyeongsangbuk-do: same data as holotype, 3 ♀♀ (YNU, 1 ♀ in ZISP). Jeollabuk-do: Jeongeup-si, Naejang-dong, Geumseong, Malaise trap, 20.VI.2005, coll. D.K. Chung, 1 ♀ (YNU).

Additional material.

RUSSIA: Primorskiy reg., 30 km SE of Ussuriysk, mixed forest, 15.VII.2001, coll. S.A. Belokobylskij, 1 ♀ (ZISP).

Comparison.

Very similar to Probles rukora sp. n. but the ovipositor has the apex thinner and strongly upcurved (Fig. 18), whereas in Probles rukora sp. n. the ovipositor is just slightly sinuate apically with the extreme apex neither especially thin nor strongly upcurved (Fig. 24). No other differences were found between these two species but the shape of the ovipositor apex works very well in separating all specimens without intermediate forms and both species are represented in our material by many specimens. Thus, we consider Probles korusa sp. n. and Probles rukora sp. n. to be distinct species. Probles korusa sp. n. also resembles the European species Probles curvicauda Horstmann, 1981, which also has a long ovipositor with strongly upcurved apex, but is distinct in having much shorter temple, a wider basal area of the propodeum and a somewhat shorter ovipositor sheath.

Description.

Female: Body length 4.5 mm; fore wing length 3.15 mm. Head with temple 0.45 times as long as eye width in dorsal view (Fig. 13). Clypeus weakly convex in lateral view, densely punctate on upper 0.6, finely granulate near upper margin. Malar space about 0.8 times as long as basal width of mandible (Fig. 15). Antennal flagellum with 19-20 segments (19 segments in holotype) (Fig. 12). Face and frons very finely granulate, dull, with sharp and dense punctures. Temple with dense, fine and sharp punctures. Foveate groove long, extending across anterior 0.8 of mesopleuron (Fig. 15). Propodeum with basal area about 1.5 times as long as broad and almost half as long as apical area (Fig. 14); basal longitudinal carinae sometimes indistinct and propodeum with longitudinal wrinkles dorsally. Propodeal spiracle separated from pleural carina by 1.0-2.0 times diameter of spiracle. Apical longitudinal carinae usually weak, anteriorly usually indistinct. Hind femur 4.1 times as long as broad and 0.82 times as long as tibia. First tergite laterally before glymma mostly smooth, 4.0 times as long as broad posteriorly. Second tergite 1.65 times as long as anteriorly broad. Ovipositor weakly sinuate apically, with extreme apex thin and strongly uncurved (Fig. 18); sheath about 2.6 times as long as first tergite. Metasoma behind first tergite predominantly brown, yellowish ventrally, tergites 2-3(4) dorsally dark brown (Fig. 11).

Male. Unknown.

Variation.

The holotype has rather weak punctures on the temple. A female from the Russian Far East corresponds well with Korean material of this species but has the vertex conspicuously impressed posteriorly, weak notaulus, and a weaker foveate groove of the mesopleuron, and it may belong to a new species. This specimen is not included in the type series, and study of additional material is required to solve its status.

Distribution.

South Korea, Russian Far East (Primorskiy reg.).

Etymology.

Combination of initial letters of Korea and Russia, home countries of the participants in this paper.