Zodarion atlanticum, Pekár & Cardoso, 2005

Pekár, Stano & Cardoso, Pedro, 2005, Ant-eating spiders (Araneae: Zodariidae) of Portugal: additions to the current knowledge, Zootaxa 1009 (1), pp. 51-60 : 54-55

publication ID

https://doi.org/ 10.11646/zootaxa.1009.1.5

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scientific name

Zodarion atlanticum

sp. n.

Zodarion atlanticum sp. n.

( Figs 5–8 View FIGURES 5–8 , 16 View FIGURES 13–20 )

Type data. Holotype male: Azores, Pico, Madalena , 3 June 2004, leg. S. Pekár et M. Hrušková; paratypes: 2f, same data. Type material deposited in SMF.

Other material examined. Leiria district: Parque Natural das Serras de Aire e Candeeiros (all P. Cardoso leg., CPC): Bairro (UTM 29 SND37 ) , 18 June 2002, 2m; Barrenta (UTM 29 SND28 ) , 2 July 2002, 1m; Santarém district: Reserva Natural do Paúl do Boquilobo: Paúl do Boquilobo (UTM 29 SND36 ) , 10 April 2002, 1j; 24 April 2002, 3j; 8 May 2002, 5j; 22 May 2002, 27m; 5 June 2002, 67m+6f; 18 June 2002, 57m+4f; 2 July 2002, 2m+1f; 16 July 2002, 2m+15f+15j; 30 July 2002, 2f+62j; 14 August 2002, 39j; 27 August 2002, 2f+47j; 10 September 2002, 33j; 24 September 2002, 57j; 8 October 2002, 34j; 22 October 2002, 2j; 5 November 2002, 3j. Azores: Faial, Cabeço do Fogo , 17 September 1999, 2f+1j, P. A. V. Borges leg. ( CPB); Pico, Madalena , 5 June 2004, 8m+14f, leg. S. Pekár et M. Hrušková (CSP).

Material used for comparison. Zodarion costablancae : Spain, Valencia, Bellus , 7 June 1994, 1m+2f, R. Bosmans leg. (CRB) ; Tarragona, L'Ampolla , 6 August 2000, 1f, R. Bosmans leg. (CRB) . Zodarion machadoi : Spain, Pontevedra, Puerto de Fuentedria , 13 August 1994, 1f, R. Bosmans leg. (CRB) ; Portugal, Vila do Conde , 1m +1f ( MNHN, AR9951 View Materials ). Zodarion viduum : Portugal, Trás­os­Montes, Viveiro , 16 August 1992, 1f, R. Bosmans leg. (CRB) ; Portugal, Porto, Lisboa, 2f ( MNHN, AR1518 View Materials ) .

Diagnosis. This species belongs to the „ rubidum “ group sensu Bosmans (1997). It is closely related to Z. viduum Denis 1937 , Z. costablancae Bosmans 1994 and Z. machadoi Denis 1939 . Males of this species are distinguished from these species by shape of tibial apophysis, which is wide at base and gradually tapering towards tip. Females differ in shape of posterio­lateral margins of epigynal plate that are convergent.

Description. Male. Total length 2.39 mm (SD=0.14, n=10), prosoma 1.25 mm (SD=0.06, n=10) long, 0.87 (SD=0.03, n=10) wide. Colour: Prosoma, chelicerae and sternum brown. Legs yellow but femora I and II brown. Opisthosoma dorsally dark sepia with one whitish spot above spinnerets, ventrally pale. Palp (Figs 56): tibial apophysis broad gradually tapering, curved anterio­dorsally, distally pointed. Basal part of bulbus protruding. Retinaculum with distal end rounded and flattened. Embolus and disal tegular apophysis straight and truncate.

Female. Total length 3.19 mm (SD=0.32, n=10), prosoma 1.34 mm (SD=0.08, n=10) long, 0.92 (SD=0.06, n=10) wide. Colour: as in males but femora III and IV distally light brown. Epigyne (Figs 78): with two pouches. Anterior margin with a wedge­shaped structure. Posterior margins convergent. Width of epigynal plate twice as long as distance between inner ends of posterio­lateral margins.

Distribution. In continental Portugal it is known from the centre of the country, in the Azores from Pico and Faial islands ( Fig. 16 View FIGURES 13–20 ).

Etymology. The name is an adjective derived from the Atlantic Ocean in whose proximities it is found.


Forschungsinstitut und Natur-Museum Senckenberg


Culture collection of Pedro Crous


Royal British Columbia Museum - Herbarium


National Institute for the Control of Pharmaceutical and Biological Products


Departamento de Geologia, Universidad de Chile


Museum National d'Histoire Naturelle