noun
: a transverse groove on the mesonotum and metanotum of most insects separating the prescutum and scutum and forming the prescutal ridge on the inner surface
noun
: a transverse groove on the mesonotum and metanotum of most insects separating the prescutum and scutum and forming the prescutal ridge on the inner surface
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012