Mesoleiini, Thomson, 1883

Sheng, Mao-Ling, Watanabe, Kyohei & Huang, Rui-Fen, 2022, First Oriental record of genus Neostroblia Heinrich (Hymenoptera, Ichneumonidae, Ctenopelmatinae) with description of one new species, Zootaxa 5115 (2), pp. 274-280 : 279

Key to five similar genera of Mesoleiini

1. Latero-median carina of first tergite present, relatively strong, reaching beyond spiracle; dorso-lateral carina complete. Lower tooth of mandible longer than upper tooth. Areolet small, with petiole........................ Otlophorus Förster, 1869

-. Latero-median carina of first tergite absent or indistinct; dorso-lateral carina absent or incomplete. Lower tooth of mandible shorter than or same length as upper tooth. Areolet absent, if present, then relatively large............................ 2

2. First tergite rather slender, at least 1.7 × as long as posterior width. Clypeus convex medially or subapically. Lower tooth of mandible same length as upper tooth. Notaulus distinct...................................... Alexeter Förster, 1869

-. First tergite relatively stout. Clypeus slightly convex or convex apically. Lower tooth of mandible distinctly longer or shorter than upper tooth. Notaulus absent or indistinct.............................................................. 3

3. Lower tooth of mandible shorter than upper tooth. Areolet absent.......................... Neostroblia Heinrich, 1953

-. Lower tooth of mandible distinctly longer than upper tooth. Areolet present....................................... 4

4. Dorso-lateral carina of first tergite distinctly present. Clypeus rather wide, strongly convex apically..................................................................................................... Alcochera Förster, 1869

-. Dorso-lateral carina of first tergite, at least basal portion before spiracle, absent. Clypeus moderately wide, convex or flat, apical portion impressed............................................................ Dentimachus Heinrich, 1949