ZODARIIDAE Thorell, 1881

Nombre común en ingles: Burrowing Spiders, Ant-Eating Spiders

Nombre común en castellano: Se desconoce

Familias similares:

Género tipo: Zodarion Walckenaer, 1826

Diagnosis: Small to large araneomorph spiders with an enormous variation of shapes; three tasal claws with teeth on paired tarsal claws implanted on lateral side facing opposing claw; ecribellate; entelegyne; six or eight eyes; serrula absent; cheliceral fangs very short; anterior lateral spinnerets long; posterior spinnerets reduced.

Caracteres descriptivos: Caparazón: highly variable in shape; in general oval, narrowed anteriorly (more so in males); fovea varies from well developed and deep to poorly, developed or absent; integument varies from entirely smooth to densely granulate or with tiny perforations; row of strong setae in ocular area in Cyrioctea and Leprolochus. Esternón: usually oval or shield-shaped; in some genera with triangular extensions corresponding to slifht concavities in coxae or intercoxal or precoxal sclerites; sternum sometimes rebordered. Ojos: six (Trygetus) or eight; eye size and arrangement variable: in two or three rows (2:4:2 or 2:2:4); secondary eyes with canoe-shaped tapetum. Quelíceros: strong with a well developed lateral condyle; sometimes fused or separated by a membranous inter-cheliceral triangle; fangs usually short and thick at base; cheliceral teeth present, few or absent. Piezas bucales: endites converging strongly; serrula absent; anteromesal scopula present. Patas: three claws, rarely two (Hermippus); unpaired claw often situated on onychium; paired claw with numerous teeth inserted on lateral side facting opposing claw (in the axis in Cyrioctea); leg formula 4123 or 4132; spination usually well developed; digging species usually with numerous strong spines on posterior legs; trichobothria in rows; scopulae replaced by dense short spines in many species; femoral gland present in derived Zodariinae. Palpo femenino: palpal tarsus varies in shape between genera; tarsal claw usually finely toothed to well developed and toothless; claw tends to turn inward 30-90º. Abdomen: usually ovoid, sometimes twice as long as wide, or higher at back than in front; scutum present in males in some genera. Hileras: median posterior spinnerets reduced or absent; in most genera of Zodariinae anterior spinnerets on a common base, retractile in some genera; anterior median spinnerets usually with one or two major ampullate gland spigots surrounded by piriform gland spigots; posterior median and lateral spinnerets in female often with a few large cylindrical gland spigots; colulus reduced to a setose field. Sistema respiratorio: two booklungs; tracheal spiracle relatively narrow; often with sclerotized rim, situated just in front of spinnerets; leading into four tiny tracheae or two large ones extended into cephalothorax. Genitalia: entelegyne; epigyne variable, often a central plate with copulatory ducts originating medially; tibia of male palp with one or several dorsolateral apophyses; cymbium oval; subtegulum present and tegulum complex, with several apohyses. Tamaño corporal: 2-21 mm. Color: highly variable; pale to dark brown; abdomen usually decorated with simple pattern (spots, blotches or chevrons); sometimes with metallic lustre.

Estatus taxonómico: Zodariidae is one of the problematic families as far as their placement is concerned. Although Coddington et al. (2004) place them without argumentation in a trichotomy with Dionycha and Amaurobioidea, we consider the family part of the Amaurobioidea owing to the presence of alternating longitudinal bald and hairy patches on the patellae (Thaler & Knoflach, 2004) and of hinged hairs on some leg joints (Jocqué, 1991).

Note: According to Wunderlich (2004), the Homalonychidae and Cryptothelidae are part of the Zodariidae and form their own subfamilies. The former does not have a single morphological character to support this placement. Cryptothele, on the other hand, is most probably a member of the subfamily Cydrelinae (eye position, basolateral extension of endites), which will then become the Cryptothelinae.

Distribución: Tropical and subtropical regions; few genera in Paleartctic.

Estilo de vida: Free-living ground-dwellers or tree-living (Storenomorphinae); many species have a specialized diet consisting of ants or termites.

Bibliografía:

  • Baehr, B.C. 2004. Revision of the new Australian genus Holasteron (Araneae: Zodariidae): taxonomy. phylogeny and biogeography, Mem. Old Mus. 49: 495-519.

  • Jocqué, R. 1991. A generic revision of the spider family Zodariidae (Araneae). Bull. Am. Mus. nat. Hist. 201: 1-160.

  • Ubick, D. & Craig, P.R. 2005. Zodariidae. pp. 254-255 in Ubick, D., Paquín, P., Cushing, P.E. & Roth, V. (Eds) 2005. The Spiders of North America. An Identification Manual. American Arachnological Society

  • Wunderlich, J. 2004. Fossil spiders in amber and copal. Joerg Wunderlich Verlag. Hirschberg-Leutershausen (Germany). Vol. 3 A, B, 1908 pp.

          3 géneros y 46 especies presentes en la Península Ibérica:

  • Amphiledorus Jocqué & Bosmans, 2001

                      - A. adonis Jocqué & Bosmans, 2001
                      - A. balnearius Jocqué & Bosmans, 2001
                      - A. histrionicus (Simon, 1884)
                      - A. ungoliantae Pekár & Cardoso, 2005
  • Selamia Simon, 1873

                      - S. reticulata (Simon, 1870)
  • Zodarion Walckenaer, 1826

                      - Z. affinae (Simon, 1870)
                      - Z. alacre (Simon, 1870)
                      - Z. alentejanum Pekár & Carvalho, 2011
                      - Z. algarvense Bosmans, 1994
                      - Z. andalusicum Jocqué, 1991
                      - Z. atlanticum Pekár & Cardoso, 2005
                      - Z. bacelarae Pekár, 2003
                      - Z. beticum Denis, 1957
                      - Z. bosmansi Pekár & Cardoso, 2005
                      - Z. cesari Pekár, 2011
                      - Z. costablancae Bosmans, 1994
                      - Z. costapratae Pekár, 2011
                      - Z. diatretum Denis, 1935
                      - Z. duriense Cardoso, 2003
                      - Z. elegans (Simon, 1873)
                      - Z. fulvonigrum (Simon, 1874)
                      - Z. fuscum (Simon, 1870)
                      - Z. gallicum (Simon, 1873)
                      - Z. gregua Bosmans, 1994
                      - Z. guadianense Cardoso, 2003
                      - Z. isabellinum (Simon, 1870)
                      - Z. italicum (Canestrini, 1878)
                      - Z. jozefienae Bosmans, 1994
                      - Z. lusitanicum Cardoso, 2003
                      - Z. machadoi Denis, 1939
                      - Z. maculatus (Simon, 1870)
                      - Z. mallorca Bosmans, 1994
                      - Z. marginiceps Simon, 1914
                      - Z. merlijni Bosmans, 1994
                      - Z. minutum Bosmans, 1994
                      - Z. modestum (Simon, 1870)
                      - Z. murphyorum Bosmans, 1994
                      - Z. pseudoelegans Denis, 1933
                      - Z. rubidum Simon, 1914
                      - Z. rudyi Bosmans, 1914
                      - Z. segurense Bosmans, 1994
                      - Z. soror (Simon, 1874)
                      - Z. styliferum (Simon, 1870)
                      - Z. timidum (Simon, 1874)
                      - Z. vanimpei Bosmans, 1994
                      - Z. viduum Denis, 1937
 
Agelena labyrinthica © Pedro Cardoso