Aptesis Foerster , 1850

Li, Tao, Sheng, Mao-Ling & Sun, Shu-Ping, 2013, Chinese species of the genus Aptesis Foerster (Hymenoptera, Ichneumonidae) parasitizing sawflies, with descriptions of three new species and a key to species, ZooKeys 290, pp. 55-73 : 56-57

Genus Aptesis Foerster, 1850

Aptesis Förster 1850. Archiv für Naturgeschichte. 16(1): 71. Type species: Ichneumon sudeticus Gravenhorst, 1815. Designated by Viereck 1914.

Diagnosis.

Clypeus weakly to rather strongly convex in lateral review, apex truncate or broadly and gently convex, sometimes faintly concave and sometimes with a median tooth.Mandible of moderate length, its lower tooth the same size as upper tooth or sometimes slightly smaller, rarely slightly larger. Tyloids linear to elliptic or subcircular, on about 5 segments, beginning on flagellomeres 9, 10, or 11. Epomia absent or rudimentary. Mesoscutum rather weakly convex. Notaulus vestigial or reaching as much as 0.3 of distance to scutellum. Sternaulus distinct over more than 0.5 of mesopleuron, its end pointing to lower hind corner of mesopleuron. Juxtacoxal carina complete and strong. Propodeum of moderate length to short, with or without weak apophyses. Costula usually present in males, usually incomplete or absent in females, but sometimes absent in males and sometimes complete and strong in females. Propodeal spiracle circular or short elliptic. Areolet pentagonal, moderate size. Median dorsal carinae of first tergum usually weak and reaching about to the spiracle, rarely longer and stronger. Dorsolateral part of postpetiole usually carinate between spiracle and apex, or rarely rounded. Ovipositor sheath about 0.35 times as long as fore wing. Ovipositor straight, tip usually elongate sagittate but sometimes shorter, teeth on lower valve weak, oblique, separated into a basal and an apical series ( Townes 1970).

Key to species of Aptesis known in China