Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Upcoming Events

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

National Moth Week was July 23-31, 2022! See moth submissions.

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



Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
No Taxon (Glossary)
No Taxon (C)
No Taxon cephalothorax
cephalothorax noun - the first (anterior) body section of arachnids (spiders and allies) and also of various crustaceans. The cephalothorax is also called the prosoma. The other major body section is the abdomen, perhaps more accurately called the opisthosoma. Appendages and other features of the the cephalothorax include the legs, eyes, chelicerae, and pedipalps. The female genital opening, useful in species identification, is the epigynum. See the diagrams:
See Also
cephalothorax (prosoma)
opisthosoma (abdomen)
Internet References