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Upcoming Events

See Moth submissions from National Moth Week 2023

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Photos of insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Previous events



Insect Leg Legs of hymenoptera Anatomy of a Spider Spider Anatomy for glossary
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
No Taxon (Glossary)
No Taxon (L)
No Taxon leg
Explanation of Names
English word is from Middle English legge, meaning leg (1), that apparently from Old Norse (Jardine calls this Icelandic) leggr, a leg, a hollow bone.
leg - one of the six chief organs of locomotion of an insect, arising from the segments of the thorax, and which are made up of four main portions, the coxa, femur, tibia, and tarsus. (The second segment, the trochanter, is very short.) Sometimes the tarsus has an elongated first section, the metatarsus.

Some insect larvae, especially caterpillars, have fleshy prolegs, often in addition to six true legs. Photos/diagrams showing prolegs and true legs in a caterpillar:
According to Jardine, Thomas Say called the entire insect leg the tibia, but this usage is not current today.
Print References
Gordh, A Dictionary of Entomology, p. 517 (1)
Internet References
Wikipedia: Arthropod leg
Works Cited
1.A Dictionary of Entomology
George Gordh, David H. Headrick. 2003. CABI Publishing.