Rodrigama unmunensis Choi & Lee, 2020

Choi, Jin-Kyung & Lee, Jong-Wook, 2020, Four new species of the genus Rodrigama Gauld, 1991 (Hymenoptera, Ichneumonidae, Poemeniinae) from South Korea, Journal of Hymenoptera Research 75, pp. 1-13 : 1

Rodrigama unmunensis Choi & Lee sp. nov.

Figs 1D , 5A-H

Type.

Holotype ♀, 30.v.2009, Mt. Unmunsan site 2 (35°38'50"N, 128°58'19"E), Unmun-myeon, Cheongdo-gun, GB, South Korea (G.I. Park) [DNUE] .

Description.

Female. Length of fore wing 11.5 mm; body 15 mm; ovipositor 20 mm. Head and mesosoma with sparse setae. Malar space about 0.31 times as long as basal width of mandible. Occipital carina interrupted medially. Antennal flagellomeres missing. Pronotum with strongly impressed and transversely striate groove from epomia to ventroposterior corner; area dorsal to this groove rather strongly and densely punctate, slightly rugose; lower part of pronotum glabrous (Fig. 5A ). Mesoscutum in front of scuto-scutellar groove 1.2 times as long as in dorsal view (Fig. 5C ); mesopleuron densely punctate, rather densely covered with pubescence (Fig. 5A ); epicnemial carina absent; mesopleural suture transversely striate. Propodeum rugosely punctate, transversely striate dorsomedially, without lateromedian longitudinal carina; posterior transverse carinae very weak and incomplete (Fig. 5D ). Hind wing with 8 distal hamuli. Fore tibia with nine stout spines on dorsal surface and three stout spines on distal end. Hind coxa 2.1 times as long as maximum width. First metasomal tergite broadened posteriorly in dorsal aspect, 1.9 times as long as posteriorly broad (Fig. 5G ); second to fourth tergites densely covered with strong punctures and minute pubescence.

Coloration. Body largely reddish brown to black. Face with narrow yellow stripe, extending along inner orbit to top of eye (Fig. 5B ). Clypeus reddish brown. Apical half of mandible black. Frons and vertex black in dorsal view (Fig. 5C ). Upper part of temple black, lower part reddish brown in lateral view (Fig. 5A ). Pronotum and mesoscutum entirely black, without pairs of black longitudinal spots (Fig. 5A ). Mesopleuron black with large reddish brown spot centrally; speculum black (Fig. 5A ); mesosternum black; mesepimeron reddish brown; scutellum and postscutellum black. Propodeum black; metapleuron black, with reddish brown spot below pleural carina. Legs reddish brown to black. Tibia and tarsus paler. Fore coxa reddish brown with black spot in ventral view. Posterior part of mid coxa and trochanter darkened. Hind coxa with black spot dorsally; hind tibia reddish brown, darkened apically; hind tarsus yellow, basitarsus darker proximally. Wings hyaline, slightly tinged with brown; pterostigma black, with very weak faint brownish spots around junction of vein R and pterostigma. Metasomal tergites reddish brown to black. Ovipositor dark brown.

Male. Unknown.

Distribution.

South Korea.

Region.

Eastern Palaearctic.

Etymology.

The species is named after Mt. Unmun where the holotype specimen was collected.

Remarks.

This new species is similar to R. taishanense , but can be distinguished from by the ventral half of the hind coxa reddish brown and its dorsal half black (hind coxa black in R. taishanense ); posterior parts of metasomal tergites with weak brown lines and metasomal tergites reddish brown to black in lateral view (metasomal tergites black in R. taishanense ); epicnemial carina absent ( R. taishanense has the ventral section of the epicnemial carina); the first metasomal tergite of R. taishanense is much longer than in the new species.

Figures

Figure 1. Rodrigama spp., habitus in lateral view (type specimens). A R. sobaekensis sp. nov. B R. koreana sp. nov. C R. wooki sp. nov. D R. unmunensis sp. nov. Scale bars: 10 mm).

Figure 5. R. unmunensis sp. nov. (holotype). A habitus in lateral view B head in frontal view C Frons and mesoscutum in dorsal view D propodeum E first to third tergites in lateral view F second tergite in dorsal view G first to third tergites in dorsal view H posterior end of metasoma. Scale bars: 1 mm (A, C, E, G-H); 0.5 mm (B, D, F).