Hymenoptera Glossary

Results from the Glossary

id: 499

labrum

definition: Thesclerite that is located on themouthparts, anterior to thehypopharynx.

written by: Deans, A. R. 2009. HAO curator..

OBO dbxref: HAO:0000456

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attached tags:

alternative definition

(from: Goulet, H., and J. T. Huber. 1993.) The anterior, medial appendage of the mouthparts attached to the underside of, and often concealed by, the clypeus. by:Andy Deans

HOL pdf page (from: Mikó, I., L. Vilhelmsen, N. F. Johnson, L. Masner , and Z. Pénzes. 2007.) 44,56,56 by:Hans Clebsch

alternative definition

(from: Snodgrass, R. E. 1935.) the preoral lobe of the head suspended from the clypeus, with muscles arising to the frons by:Andy Deans

alternative definition

(from: Vilhelmsen, L. 1996.) freely attached, through membrane, to the clypeus, which in the Hymenoptera overhangs the labrum anteriorly. The labrum is more than half as wide as the clypeus and as wide as, or wider than high. The tips of the mandibles lie posterior to the labrum. The labrum has coarse setae (macrotrichia). by:Andy Deans

existing relationships:

labrum	part_of /	mouthparts		matt
apical process of the labrum	part_of /	labrum	but only in Halictidae (Michener 2000); does this term apply to other taxa?	adeans	10/24/2006
vacuole	part_of /	labrum		adeans	11/15/2006
labrum	is_a /	sclerite		adeans	07/30/2009
labral seta	part_of /	labrum		adeans	08/05/2009

About

This glossary is a product of an ongoing effort to build an ontology of anatomical terms used by hymenopterists. The ontology is fully accessible and editable through the web, and interested parties are encouraged to get involved in its development. A preliminary overview of contributors and information on how to cite the Glossary is available.

Caveats

Although the database is continually updated the list of terms, definitions, and relationships is incomplete. If you find errors or omissions, or you would like to contribute (either as an editor or to submit a list of terms) please contact .