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Animal Biology 58 (2008) 91–112 www.brill.nl/ab © Koninklijke Brill NV, Leiden, 2008 DOI: 10.1163/157075608X303663 A new spider genus from North America: Frederickus (Araneae: Linyphiidae) Pierre Paquin, 1, * Nadine Dupérré, 2 Donald J. Buckle, 3 and Rodney L. Crawford 4 1 Cave and Endangered Invertebrate Research Laboratory, SWCA Environmental Consultants, 4407 Monterey Oaks Boulevard, Building 1, Suite 110, Austin, Texas, 78749, USA. 2 12 Chemin Saxby Sud, Shefford, Québec, J2M 1S2, Canada. 3 620 Albert Avenue, Saskatoon, Saskatchewan, S7N 1G7, Canada. 4 Burke Museum, University of Washington, Box 353010, Seattle, Washington 98195-3010, USA. Abstract Frederickus , gen. nov. (Araneae: Linyphiidae: Erigoninae) is described in honor of Dr. Frederick A. Coyle. The genus is diagnosed by the combination of scattered hair-tipped tubercles on the chelicerae, and male palp with a long straight distal suprategular apophysis (DSA) paralleled by the embolic membrane (EM). Two species are included: Frederickus coylei sp. nov. and Frederickus wilburi (Levi and Levi, 1955) comb. nov. transferred from Collinsia (O. Pickard-Cambridge, 1913). Frederickus coylei was previously known as Spirembolus vasingtonus, a nomen nudum. A phylogenetic analysis based on morphology places Frederickus in the “distal erigonines” of Miller and Hormiga (2004). The addition of Frederickus to the
Animal Biology – Brill
Published: Jan 1, 2008
Keywords: spider fauna; Erigoninae; Phylogenetic stability; taxonomy; new taxa
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