Costacosa, a new genus of wolf spider (Araneae, Lycosidae) from coastal north-west Western Australia

Volker Framenau, Anna Leung

    Research output: Contribution to journalArticlepeer-review


    A new genus of wolf spider (family Lycosidae Sundevall, 1833), Costacosa gen. nov.
    is described from north-west Western Australia to include C. torbjorni sp. nov. (type species) and
    C. dondalei sp. nov. The genus belongs to the subfamily Lycosinae Sundevall, 1833 and differs from
    all other Australian genera in this subfamily with similar somatic morphology, in particular Venator
    Hogg, 1900 and Knoelle Framenau, 2006, mainly in genitalic characters. The tegular apophysis of
    the male pedipalp has a pronounced ventral spur, a distinct ventral edge of species-specific shape
    and serrations along its apical edge. The female epigyne has an elongated triangular atrium and the
    medium septum is longer than the posterior transverse part. Costacosa are medium-sized wolf
    spiders of overall brown colouration and with broad light median and sublateral bands on the carapace
    and a black patch in the frontal two-thirds of the venter. Costacosa torbjorni is the most commonly
    recorded wolf spider on Barrow Island, from where currently seven species of Lycosidae are known.
    Original languageEnglish
    Pages (from-to)173-184
    JournalRecords of the Western Australian Museum: Supplement
    Publication statusPublished - 2013


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