Barichneumonops, Riedel, 2021

Riedel, Matthias, 2021, A New Contribution to the Knowledge of the East Palaearctic Ichneumoninae (Hymenoptera, Ichneumonidae), Linzer biologische Beiträge 53 (1), pp. 171-240 : 184

Barichneumonops nov.gen.

Type species: Barichneumonops membraneus nov.sp.

D e s c r i p t i o n: Flagellum stout, slightly lanceolate. Temple long, parallel behind eyes and moderately narrowed apically. Occiput strongly concave medially. Clypeus large, almost flat, with scattered punctures; apical margin sharp and straight. Mandible with two teeth, lower tooth smaller than upper tooth, not bent inwards. Genal carina complete, reaching hypostomal carina close to mandibular base; both carinae low.

Epomia present. Collar without longitudinal ridge. Notaulus weakly impressed in frontal 1/6 of mesoscutum. Mesoscutum densely punctate and weakly shining. Scutellum almost flat, slightly wider than long, without lateral carina. Propodeum rugose. Area basalis slightly bulging anteriorly, but without distinct median tubercle. Area superomedia hexagonal; anterior transversal carina weak. Area petiolaris moderately impressed medially. Posterior transverse carina slightly and bluntly widened laterally. Hind coxa with scopa. Hind femur stout. Hind tibia without external denticular spurs. Distal tarsomeres moderately elongate and slightly curved. Claws large, strongly bent apically (by 90°), not pectinate. Areolet pentagonal. Vein 1cu-a postfurcal by 2× its width. Metasoma oxypygous. Postpetiolus moderately widened, without dorsal carina, median field densely punctate. Gastrocoelus moderately impressed, with longitudinal ridges. Thyridium transverse, 0.6× as wide as the interval. Apical margin of 6 th tergite with sickle-shaped membraneous area; 7 th tergite with roundish dorsal membraneous area. Ovipositor sheath slightly club-shaped, moderately extending behind metasomal apex.

R e m a r k: This new genus belongs to the Ichneumonini , subtribe Cratichneumonina (sensu HEINRICH 1967) and is mainly characterized by the modified structure of apical tergites with a dorsal roundish membranous area on 7 th tergite which is reminiscent to the East Palearctic genus Hymenura TOWNES. It runs to Togea UCHIDA in the key of Eastern Palaearctic Ichneumoninae ( TOWNES et al. 1965), but differs by the lack of distinct apophyses and by the strongly modified apical tergites.