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


TaxonomyBrowse
Info
ImagesLinksBooksData

Family Ctenizidae - Cork-lid trapdoor spiders

unknown spider (?purse web?) - Ummidia Trapdoor spider - Ummidia - male Trapdoor spider - Ummidia - female Ummidia spp. - Ummidia - male Parallel cheliceral fangs - Ummidia - male Cork-lid trapdoor spider - Ummidia - male Spider in Northwest Florida - Ummidia trapdoor spider? - Cyclocosmia
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Class Arachnida (Arachnids)
Order Araneae (Spiders)
Infraorder Mygalomorphae (Mygalomorphs)
Family Ctenizidae (Cork-lid trapdoor spiders)
Explanation of Names
"Trapdoor spiders" because they make their homes in tubelike burrows completely lined with silk. They cut a lid which is attached on one side, like a hinged trapdoor. The top of the lid is camouflaged with debris. When they feel the vibration of prey, they rush out to capture it, then return to the burrow. Females rarely leave their burrows, but males may be found wandering in search of prey.
Size
10 - 30 mm
Print References
Spiders and Their Kin(1)
Works Cited
1.Spiders and Their Kin: A Golden Guide from St. Martin's Press
By Herbert W. Levi, Lorna R. Levi, Nicholas Strekalovsky