Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
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thorax, thoracic

Diagram of an insect Parts of a Caterpillar Anatomy of a Spider
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
No Taxon (Glossary)
No Taxon (T)
No Taxon thorax, thoracic
Explanation of Names
From Greek thorax, chest, breastplate.
thorax noun, adjective thoracic - that part of the body between the head and the abdomen in an insect, the second of the three main divisions.
The primary role of the thorax in insect physiology is movement--the legs and wings are attached on this part of the body.
The three divisions of the thorax are the prothorax (front), the mesothorax (middle), and the metathorax (rear).
See Also
Divisons of the insect body:

Divisions of thorax (front | middle | rear):

Dorsal surface of thorax (notum):

Lateral (pleural) surface of thorax:

Ventral surface of thorax:
Print References
Gordh, A Dictionary of Entomology, p. 923 (1)
Works Cited
1.A Dictionary of Entomology
George Gordh, David H. Headrick. 2003. CABI Publishing.