Small subfamily of which the biology is unknown. Cosmopolitan, but rarely collected; most species occur in Australia and S. America. The Betylobraconinae are related to the Rogadinae, by e.g. their similar structure of venom apparatus (D.L.J. Quicke, pers. comm.).
Note. If the face is distinctly protruding, no distinct hypoclypeal depression is present, and the females are wingless, then it belongs to a new subfamily to be described in a forthcoming paper. If the dorsal carinae of the first metasomal tergite are enclosing a triangular area and the propodeum with long median carina, cf. subfamily Rogadinae. If the anterior face of the fore tibia bears a row of (tiny) pegs (18*) and propodeum with transverse carina, cf. subfamily Doryctinae (the genus Stenocorse Marsh, 1968).
Drawings:
Mesocentrus crassipes 1, Mesocentrus crassipes Szépligeti, female.
Betylobracon waterhousei 1, Betylobracon waterhousei Tobias, female.
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