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Home » Guide » Arthropods (Arthropoda) » Chelicerates (Chelicerata) » Arachnids (Arachnida) » Spiders (Araneae) » Mygalomorphs (Mygalomorphae) » Wafer-lid trapdoor spiders (Euctenizidae) » Eucteniza

Genus Eucteniza

Classification · Synonyms and other taxonomic changes · Numbers · Size · Identification · Range · Life Cycle · Remarks · Print References · Works Cited
Hairy Texas Spider - Eucteniza relata Tarantula - Eucteniza relata Eucteniza - Eucteniza relata - male Eucteniza - Eucteniza relata - male Eucteniza - Eucteniza relata - male Eucteniza - Eucteniza relata - male Eucteniza relata - male Large balck and brown spiders - Central Texas - Eucteniza
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Chelicerata (Chelicerates)
Class Arachnida (Arachnids)
Order Araneae (Spiders)
Infraorder Mygalomorphae (Mygalomorphs)
Family Euctenizidae (Wafer-lid trapdoor spiders)
Genus Eucteniza
Synonyms and other taxonomic changes
Eucteniza Ausserer, 1875
Favila O.P.-Cambridge, 1895
Enrico O.P.-Cambridge, 1895
Astrosoga Chamberlin, 1940
Numbers
15 species in genus (most from Mexico), two species in US (Texas)
Size
up to 25 mm in length (1)
Identification
"Eutecniza males can be recognized by the presence of 1-2 mid-ventral megaspines on the tibia of both legs I and II" (2)

Range
Texas
Life Cycle
They form burrows usually closed with a trap door. Webs are used to line the burrow and form a hinge for the trap door. (1)

Emerging from its burrow...
Remarks
Eucteniza relata (syn. E. rex, E. stolida) occurs throughout the southern half of Texas, and is likely composed of cryptic species. Eucteniza ronnewtoni is known from Val Verde & Brewster cos., TX. (2)
Print References
Bond, J. E. & Godwin, R. L. (2013). Taxonomic revision of the trapdoor spider genus Eucteniza Ausserer (Araneae, Mygalomorphae, Euctenizidae). ZooKeys 356: 31-67. (online PDF)
Works Cited
1.A Field Guide to Spiders and Scorpions of Texas
John A. Jackman. 2002. Gulf Publishing.
2.Taxonomic revision of the Trapdoor spider genus Eucteniza Ausserer (Araneae, Mygalomorphae, Euctenizidae)
Bond, Jason E., and Rebecca L. Godwin. 2013. ZooKeys.
Contributed by Jeff Hollenbeck on 28 November, 2007 - 9:50pm
Additional contributions by Mike Quinn, jsloan, mhedin, biosam
Last updated 9 January, 2017 - 10:38pm

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