Amphinectidae is an austral (Southern Hemisphere) spider family. It includes both cribellate and ecribellate taxa. The family includes 159 species (Platnick 2013), with the largest number from New Zealand, followed by Australia and then temperate South America.
Just one species occurs in North America, Metaltella simoni (a species that was at one time placed in the family Dictynidae, then Amaurobiidae, before finding a home in Amphinectidae). The natural distribution of M. simoni is believed to be Argentina, Brazil, and Uruguay, but it has been established in the United States from Florida to Texas for many years, with the first U.S. record from Louisiana in 1944. More recently, it has become established in southern California (Vetter et al. 2008) and has been found in Alberta, Canada (in a greenhouse) and in North Carolina. (Cutler 2005 and references therein). In North America, M. simoni is usually associated with human-altered habitats. It builds a tangled cribellate web under debris and adult males sometimes wander away from the retreat. Because of the relatively large size of this spider, the cribellum is sometimes visible with a magnifying glass. (Bradley 2013)
- Bradley, R.A. 2013. Common Spiders of North America. University of California Press, Berkeley.
- Cutler, B. 2005. Amphinectidae. P. 63 in D. Ubick, P. Paquin, P.E. Cushing, and V. Roth (eds.) Spiders of North America: an Identification Manual. American Arachnological Society.
- Platnick, N. I. 2013. The world spider catalog, version 14.0. American Museum of Natural History, online at http://research.amnh.org/entomology/spiders/catalog/index.html.
- Vetter, R.S., L.S. Vincent, J.E. Berrian, and J.K. Kempf. 2008. Metaltella simoni (Araneae: Amphinectidae): widespread in coastal southern California. Pan-Pacific Entomologist 84(2): 146-149.
Molecular Biology and Genetics
Statistics of barcoding coverage
Specimens with Sequences:56
Specimens with Barcodes:55
Species With Barcodes:4
Metaltella simoni has been introduced in a large part of the Southern United States (records exist from California, Louisiana, Mississippi and Florida) and is considered an invasive species in Florida. It is feared that it could extirpate the native titanoecid species Titanoeca brunnea.
- Akatorea Forster & Wilton, 1973 — New Zealand
- Amphinecta Simon, 1898 — New Zealand
- Aorangia Forster & Wilton, 1973 — New Zealand
- Austmusia Gray, 1983 — Australia
- Buyina Davies, 1998 — Australia
- Calacadia Exline, 1960 — Chile
- Carbinea Davies, 1999 — Australia
- Cunnawarra Davies, 1998 — Australia
- Dunstanoides Forster & Wilton, 1989 — New Zealand
- Holomamoea Forster & Wilton, 1973 — New Zealand
- Huara Forster, 1964 — New Zealand
- Jalkaraburra Davies, 1998 — Australia
- Kababina Davies, 1995 — Australia
- Keera Davies, 1998 — Australia
- Magua Davies, 1998 — Australia
- Makora Forster & Wilton, 1973 — New Zealand
- Malarina Davies & Lambkin, 2000 — Australia
- Mamoea Forster & Wilton, 1973 — New Zealand
- Maniho Marples, 1959 — New Zealand
- Marplesia Lehtinen, 1967 — New Zealand
- Metaltella Mello-Leitão, 1931 — South America
- Neolana Forster & Wilton, 1973 — New Zealand
- Neororea Forster & Wilton, 1973 — New Zealand
- Oparara Forster & Wilton, 1973 — New Zealand
- Paramamoea Forster & Wilton, 1973 — New Zealand
- Penaoola Davies, 1998 — Australia
- Quemusia Davies, 1998 — Australia
- Rangitata Forster & Wilton, 1973 — New Zealand
- Reinga Forster & Wilton, 1973 — New Zealand
- Rorea Forster & Wilton, 1973 — New Zealand
- Tanganoides Davies, 2005 — Australia
- Tasmabrochus Davies, 2002 — Tasmania
- Tasmarubrius Davies, 1998 — Tasmania
- Teeatta Davies, 2005 — Tasmania
- Wabua Davies, 2000 — Australia
- Waterea Forster & Wilton, 1973 — New Zealand
- Griswold et al. 2005
- Davies, Valerie Todd (2002): Tasmabrochus, a new spider genus from Tasmania, Australia (Araneae, Amphinectidae, Tasmarubriinae). Journal of Arachnology 30: 219-226. PDF
- Edwards, G.B.: (Cribellate Spider, Metaltella simoni (Keyserling) (Arachnida: Araneae: Amphinectidae) HTML (with pictures)
- Griswold, C. E., M. J. Ramírez, J. A. Coddington & N. I. Platnick (2005): Atlas of phylogenetic data for entelegyne spiders (Araneae: Araneomorphae: Entelegynae) with comments on their phylogeny. Proc. Calif. Acad. Sci. 56(Suppl. II): 1-324.
- Platnick, Norman I. (2008): The world spider catalog, version 8.5. American Museum of Natural History.
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