alternative definition added almost 14 years ago by Istvan Miko
The ventral division of a body segment, which may be subdivided into sternites; usually only refers to the segments of the abdomen/metasoma and to the prothorax. The sterna of the mesothorax and metathorax are considered to be invaginated within the thorax.
Reference: Goulet, H., and J. T. Huber. 1993. Hymenoptera of the World: An Identification Guide to Families. Research Branch, Agriculture Canada Publication 1894/E., Ottawa, ON 668 pp.
Cross reference:
None provided.