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labrum

Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
No Taxon (Glossary)
No Taxon (L)
No Taxon labrum
Explanation of Names
From Latin labrum meaning lip (1).
Identification
labrum noun - the upper "lip" of the arthropod mouth, a somewhat convex horny plate (sclerite) which is united posteriorly by a membranous hinge with the clypeus. Functions as a mouthpart, though not an appendage like the others. Diagrams and photos:
Print References
Gordh, A Dictionary of Entomology, p. 503 (1)
Internet References
Mouthparts and Moving--Gary Brewer, North Dakota State University (excellent illustrations and descriptions)
Works Cited
1.A Dictionary of Entomology
George Gordh, David H. Headrick. 2003. CABI Publishing.