Atanyjoppoides, Riedel, 2023

Riedel, Matthias, 2023, Contribution to the knowledge of the Ichneumoninae (Hymenoptera, Ichneumonidae) from Maritime Southeast Asia, Zootaxa 5363 (1), pp. 1-94 : 20-21

Atanyjoppoides nov. gen.

Type species. Atanyjoppoides mandibulator nov. sp.

Diagnosis. Medium-sized.

Head. Flagellum bristle-shaped, without distinct tyloids; distal flagellomeres ± nodose. Temple strongly and linearly narrowed behind eye (fig. 7B). Clypeus slightly convex, much wider than long; apical margin sharp and moderately rounded (fig. 7A). Mandible long and slender, strongly narrowed behind base (as in Benyllus Cameron ), ventral tooth much smaller than dorsal one (fig. 7C). Genal carina reaching hypostomal carina far from mandibular base, both carinae low.

Mesosoma . Epomia present. Notaulus impressed in frontal 1/5 of mesoscutum. Mesoscutum densely rugose-punctate, ± dull. Epicnemial carina low, dorsal end not reaching frontal margin of mesopleuron or subtegular ridge. Juxtacoxal carina present. Scutellum pyramidal, about as long as wide, with dense coarse punctation and with lamelliform lateral carina in frontal 0.7 (fig. 7D). Propodeum (fig. 7E) short and gradually slanting toward apex (as in Coelichneumon Thomson ); spiracle slit-shaped. Area basalis indicated as slightly elevated smooth area. Area superomedia small, about 2.0 × longer than wide. Anterior transverse carina present; posterior transverse carina absent. Apophysis absent. Legs slender. Fore metatarsus without apical tooth. Claws with some short basal teeth. Areolet pentagonal, frontal distance between veins 2rs-m and 3rs-m 2.0 × their width. Vein 1cu-a interstitial.

Metasoma. Petiole about as wide as high. Postpetiole moderately widened; median field roundly and ± hump-like raised (as in Cobunus Uchida ) (fig. 7F). Gastrocoelus strongly impressed, with fine longitudinal ridges. Thyridium slightly oblique, 1.1–1.5 × wider than the interval between thyridia. 2 nd to 5 th tergites with distinct denticular spines at posterolateral edges (fig. 7G). 2 nd to 4 th sternites with median folds. Hypopygium unmodified, apical margin moderately rounded.

Color. Black with extensive ivory coloration.

Remarks. Due to the rounded and slanting structure of the propodeum, this new genus belongs to the Protichneumonini sensu Heinrich (1967) and Tereshkin (2009). It runs to Atanyjoppa Cameron in the key of Heinrich (1934) but differs by the genal carina reaching the hypostomal carina far away from mandibular base, different form of scutellum, hump-like median field of postpetiole and carination of the propodeum. In the key of Townes et al. (1961) it runs to Hedyjoppa Cameron but differs by the dentiform posterolateral extensions of the basal tergites, form of postpetiole and different carination of its propodeum. Although this genus seems to be widespread in the Oriental region, the corresponding ♀ and host records are unknown yet.