alternative definition added over 14 years ago by Istvan Miko
A distinctly curved ridge extending from the ventral margin of the spiracular groove to the anterior margin of the metapleuron.
Reference: Buffington, M. L. 2009. Description, circumscription and phylogenetics of the new tribe Zaeucoilini (Hymenoptera: Figitidae: Eucoilinae), including a description of a new genus . Systematic Entomology 34:162-187.
Cross reference:
None provided.