alternative definition added over 14 years ago by Istvan Miko
A ridge on the gena that extends posteriorly from the malar sulcus below the
eye (see also postgenal sulcus).
Reference: Gibson , G. A. P., J. D. Read , and R. Fairchild. 1998. Chalcid wasps (Chalcidoidea): illustrated glossary of positional and morphological terms ..
Cross reference:
None provided.