Hackled orb-weaver

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Hackled orbweavers
Uloborus plumipes
Scientific classification
Kingdom: Animalia Phylum: Arthropoda Class: Arachnida Order: Araneae Suborder: Araneomorphae Superfamily: Uloboroidea Family: Uloboridae Thorell, 1869
Diversity
18 genera, 262 species
Genera
Ariston Astavakra Conifaber Daramulunia Hyptiotes Lubinella Miagrammopes Octonoba Orinomana Philoponella Polenecia Purumitra Siratoba Sybota Tangaroa Uloborus Waitkera Zosis

The hackled orbweavers (family Uloboridae) have the special distinction of being non-venomous spiders. Their lack of poison glands is a secondary evolved trait.^[1]

All members of this family produce a feathery, fuzzy silk called cribellate (or hackled) silk.^[2] These spiders do not use an adhesive on their orb webs, but rather the very fine fibers on each strand of silk tend to ensnare prey. Hackled orbweaver webs often have a stabilimentum or zig-zag pattern through the center.

[edit] Distribution

This family has almost worldwide distribution. There are only two species known from northern Europe: Uloborus walckenaerius and Hyptiotes paradoxus. single

[edit] Genera

• Ariston O. P-Cambridge, 1896 (Central America)
• Astavakra Lehtinen, 1967 (Philippines)
• Conifaber Opell, 1982 (South America)
• Daramulunia Lehtinen, 1967 (Samoa, Fiji, New Hebrides)
• Hyptiotes Walckenaer, 1837 (Palearctic)
• Lubinella Opell, 1984 (New Guinea)
• Miagrammopes O. P.-Cambridge, 1870 (America, Austrasia)
• Octonoba Opell, 1979 (Russia, Central Asia to Japan)
• Orinomana Strand, 1934 (South America)
• Philoponella Mello-Leitão, 1917 (Africa, America, Asia, Australia)
• Polenecia Lehtinen, 1967 (Mediterranean to Azerbaijan)
• Purumitra Lehtinen, 1967 (Australia, Philippines)
• Siratoba Opell, 1979 (USA, Mexico)
• Sybota Simon, 1892 (South America)
• Tangaroa Lehtinen, 1967 (Oceania)
• Uloborus Latreille, 1806 (worldwide)
• Waitkera Opell, 1979 (New Zealand)
• Zosis Walckenaer, 1842 (Pantropical)

[edit] See also

• List of Uloboridae species
• Spider families

[edit] References

1. ^ Joachim Haupt, personal communication
2. ^ Coddington, J.A. & Levi, H.W. (1991). Systematics and Evolution of Spiders (Araneae). Annu. Rev. Ecol. Syst. 22:565-592

• Opell, B.D. (1984). Lubinella, a new genus of Uloboridae (Arachnida, Araneae). J. Arachnol., 11:441-446 PDF

[edit] External links

Wikispecies has information related to:

Uloboridae

Wikimedia Commons has media related to:

Uloboridae

• World Spider Catalog