Coelichneumon (Coelichneumon) sabahensis, Riedel, 2013

Riedel, M., 2013, Contribution to the Ichneumoninae (Hymenoptera, Ichneumonidae) of Southeastern Asia: 2. Tribe Heresiarchini, Linzer biologische Beiträge 45 (2), pp. 2025-2076 : 2041-2042

Coelichneumon (Coelichneumon) sabahensis nov.sp. ( fig. 17 , 38 )

H o l o t y p u s (): "Malaysia-SW Sabah nr Long Pa Sin (East) c. 1000 m, Malaise trap 1, 1-14.IV.1987, RMNH´87 C. van Achterberg" (Leiden).

D e s c r i p t i o n of: Body length 17 mm. Flagellum 46 flagellomeres, first flagellomere (without anellus) 2.0x as long as wide, small long-oval tyloids on flagellomeres 10-21. Temple moderately and roundly narrowed behind eye. Distance of lateral ocellus to the eye 1x as long as its diameter. Frons with fine granulation and few punctures, but shining, face and clypeus with puncture, shining. Lower mandibular tooth slightly bent inwards. Genal carina reaches the hypostomal one near mandibular base.

Mesosoma with brownish hairs dorsally and whitish ones ventrally. Mesoscutum with rather dense puncture and fine granulation, shining; mesopleurum and metapleurum with dense puncture, shining, coxal carina distinct. Scutellum slightly convex, slightly longer than wide, with lateral carina in the basal 0.3. Area superomedia and basalis confluent, area superomedia hexagonal, costula in the middle. Propodeum with coarse puncture, smoothened basally. Femur III about 4.7x as long as high.

Areolet almost quadrangular, frontal distance of intercubiti 1x their diameter. Nervulus postfurcal.

Postpetiolus moderately widened. Lateral field with fine granulation, more or less smooth, median field with fine striation. Gastrocoelus strongly impressed, with few longitudinal ridges. Thyridium almost transverse, large, about 1.2x as wide as the thyridial interval. Second tergite 0.95x as long as wide. Tergites 2-3 with rugulose-puncture, striate medially. Tergites 4-5 with superficial puncture, the fourth with some median striation basally.

Colour: black. Ivory are mandible except teeth, palps, clyoeus and face, gena and outer orbit, frontal orbit, triangular spot on vertex, scapus beneath, propleurum, collare and upper margin of pronotum, spot on tegula, stripe on lower mesopleurum, spot on apical mesosternum, subtegular ridge, sides of scutellum and postscutellum, area spiraculifera with spot frontal to spiracle and apically, area superomedia, apical half of area dentipara, postpetiolus mainly, large triangular posterolateral spots on tergites 2-4, narrow apical bands on tergites 5-7 and on sternites 2-6, medial stripe on sternites 2-4, coxae I-II, all trochanteres, dorsal spot and ventral stripe on coxa III, Legs I-II mainly ivory, with dorsal brown stripes on femora and tibiae, femur III black, tibia III black, with subbasal ivory ring, tarsus II brownish, tarsus III black. Wings brownish, getting darker laterally. Pterostigma black.

unknown.

R e m a r k The runs to Coelichneumon popae HEINRICH in the key of HEINRICH (1966 a), but differs by the black mesoscutum and prescutellar carina, and the form of posterolateral spots on tergites.

D i s t r i b u t i o n: Malaysia.

Figures

Fig. 17-20: Propodeum of (17) Coelichneumon sabahensis nov.sp.; (18) Coelichneumon sichuanensis nov.sp.; (19) Cratojoppa scutellata nov.sp.; (20) Euheresiarches amoenus HEINRICH.

Fig. 37-42: Metasoma from dorsal of (37) Atanyjoppa sumatrana HEINRICH; (38) Coelichneumon sabahensis nov.sp.; (39) Coelichneumon sichuanensis nov.sp.; (40) Cratojoppa scutellata nov.sp.; (41) Ileanta fulvipes CAMERON; (42) Trogichneumon maculatus nov.sp..