Tergum

A tergum (plural terga) is the dorsal portion of an arthropod segment other than the head. A given tergum may be divided into hardened plates or sclerites commonly referred to as tergites.

The tergum of this wasp is labeled 19.

References

• McCafferty, W. Patrick (1983). Aquatic Entomology: The Fishermen's and Ecologists' Illustrated Guide to Insects and Their Relatives. Jones & Bartlett Learning. ISBN 978-0-86720-017-1.