alternative definition added over 13 years ago by Istvan Miko
The anterior area of the mesonotum or metanotum between the antecostal suture and the prescutal suture, when the latter is present.
Reference: Snodgrass, R. E. 1935. Principles of insect morphology. McGraw-Hill Book Co., Inc., New York & London 667 pp.
Cross reference:
None provided.