alternative definition added over 14 years ago by Istvan Miko
Basal region of the forewing that is enclosed anteriorly by the submarginal vein,
posteriorly by the cubital fold or cubital setal line, if present, and depending on the setal
pattern either the basal fold or basal setal line or linea calva apically.
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.