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Cercus

Cerci (sing.: cercus) are paired appendages usually on the rear-most segments of many arthropods, including insects and symphylans. Many forms of cerci serve as sensory organs, but some serve as pinching weapons or as organs of copulation. In many insects, they simply may be functionless vestigial structures.

Art, Morphology and functions & Evolutionary origin

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Morphology and functions

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Evolutionary origin

MandiblesAntennaeStyletsLegsVelvet worm
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Gallery

PamphagidCtenolepisma
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Overview

AppendagesArthropodsInsectsSymphylaCopulation
8 related topics

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Cercus

Nodes43
Edges42
Triples9
Avg. degree1.95
Density0.046512
Components1

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Important terminology

cerci many arthropods segment insects crickets sensory forms may structures abdominal copulation silverfish species forcipate paired including clear diplura dermaptera

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
cricketsinstance ofthey are rich in sensory cells and may be of importance in guiding copulation and oviposition.In groups0.80text
cockroachesinstance ofthey are rich in sensory cells and may be of importance in guiding copulation and oviposition.In groups0.80text
cerci play important sensory rolesinstance ofthey are rich in sensory cells and may be of importance in guiding copulation and oviposition.In groups0.80text
escape in response to certain predatorsinstance ofand thus trigger anti-predatory responses0.80text
stridulationinstance ofhigher-frequency sound0.80text
ultrasonic bat calls are picked up by a separate tympanal organinstance ofhigher-frequency sound0.80text
not the cerci.Some hexapods such as mayfliesinstance ofhigher-frequency sound0.80text
silverfishinstance ofhigher-frequency sound0.80text
diplurans possess an accompanying third central tail filament which extends from the tip of the abdomeninstance ofhigher-frequency sound0.80text

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