Description of the spider Verita williamsi, a new genus and species from Santa Fe, Argentina (Araneae, Gnaphosidae)

Autores/as

  • Martín Javier Ramírez División Aracnología, Museo Argentino de Ciencias Naturales "Bernardino Rivadavia" (CONICET)
  • Cristian José Grismado MACN

Palabras clave:

Ground spiders, taxonomy, Argentina, spinneret morphology

Resumen

Verita williamsi, new genus and species (Araneae, Gnaphosidae) is described from specimens recently collected in Northern Santa Fe Province, Argentina. The peculiar combination of having only two piriform gland spigots, aligned setae on the leg scopulae, and anterior lateral spinnerets not widely spaced suggests that the species is probably a close relative of Micaria and some of the small representatives of the Anzacia group of genera. It differs from all of them by having three teeth in the cheliceral retromargin and lacking iridescent squamose scales in the abdomen.

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Biografía del autor/a

  • Martín Javier Ramírez, División Aracnología, Museo Argentino de Ciencias Naturales "Bernardino Rivadavia" (CONICET)
    Profesional Adjunto - CPA - Conicet
    División Aracnología - Museo Argentino de Ciencias Naturales "Bernardino
    Rivadavia"

Referencias

Forster, R. R. 1979. The spiders of New Zealand. Part V. Cycloctenidae, Gnaphosidae, Clubionidae. Otago Museum Bulletin 5: 1-95.

Murphy, J. 2007. Gnaphosid genera of the world. British Arachnological Society, St Neots, Cambs, 1:i-xii, 1-92; 2:i-11, 93-605.

Ott, R. 2012. Neodrassex, a new genus of the Leptodrassex group (Araneae, Gnaphosidae) from South America. Iheringia, Série Zoologia 102: 343-350.

Ott, R. 2014. Nopyllus, a new South American Drassodinae spider genus (Araneae, Gnaphosidae). Iheringia, Série Zoologia 104(2): 252-261.

Ott, R. & Brescovit, A. D. 2012. Arauchemus, a new spider genus of the Echemus group (Araneae: Gnaphosidae: Echeminae) from araucaria forest areas in southern Brazil, with notes on habitat preferences and phenology. Zootaxa 3339: 44-56.

Platnick, N. I. 1990. Spinneret morphology and the phylogeny of ground spiders (Araneae, Gnaphosoidea). American Museum Novitates 2978: 1-42.

Platnick, N. I. & Shadab, M. U. 1988. A revision of the American spiders of the genus Micaria (Araneae, Gnaphosidae). American Museum Novitates 2916: 1-64.

Zakharov, B., & Ovtsharenko, V. 2015. The covering setae of ground spiders (Araneae: Gnaphosidae). Arachnologische Mitteilungen 49: 34-46.

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2016-02-13

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