alternative definition added over 17 years ago by Andy Deans
the area of the pleuron before the pleural suture and above the trochantin, sometimes divided horizontally into a supraepisternum, or anepisternum, and an infraepisternum or katepisternum
Reference: Snodgrass, R. E. 1935. Principles of insect morphology. McGraw-Hill Book Co., Inc., New York & London 667 pp.
Cross reference:
None provided.