Definition of Pronotum

Webster's Revised Unabridged Dictionary (1913)
Pronotum
(n.)
The dorsal plate of the prothorax in insects. See Illust. of Coleoptera.
  

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Pronotum definition was found in categories: Language, Idioms & Slang(1)  Science & Technology(2)  Encyclopedia(1)  

Pronotum Definition from Language, Idioms & Slang Dictionaries & Glossaries

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pronotum

pronotum
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pronotum
\pro*no"tum\ (?), n.; pl. pronota (#). [nl. see pro-, and notum.] (zo?l.) the dorsal plate of the prothorax in insects. see illust. of coleoptera.



Pronotum Definition from Science & Technology Dictionaries & Glossaries

Biological Control
Pronotum
The upper, often shield-like, hardened body-wall plate, located just behind the head of an insect.

Glossary of Entomology and Crop Protection
Pronotum
The dorsal body plate of thefirst section of the thorax, which is frequently enlarged and prolonged in many insects


Pronotum Definition from Encyclopedia Dictionaries & Glossaries

Wikipedia English - The Free Encyclopedia
Prothorax
The prothorax is the foremost of the three segments in the thorax of an insect, and bears the first pair of legs. Its principal sclerites (exoskeletal plates) are the pronotum (dorsal), the prosternum (ventral), and the propleuron (lateral) on each side. The prothorax never bears wings in extant insects, though some fossil groups possessed wing-like projections. All adult insects possess legs on the prothorax, though in a few groups (e.g., the butterfly family Nymphalidae) the forelegs are greatly reduced. In many groups of insects, the pronotum is reduced in size, but in a few it is hypertrophied, such as in all beetles (Coleoptera), in which the pronotum is expanded to form the entire dorsal surface of the thorax, and most treehoppers (family Membracidae, order Hemiptera), in which the pronotum is expanded into often fantastic shapes that enhance their camouflage or mimicry.

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