Opisthoncus

Opisthoncus is a genus of South Pacific jumping spiders that was first described by Ludwig Carl Christian Koch in 1880. There are still many Australian species that have not yet been described.

==Species== it contains thirty-two species, found only in Papua New Guinea and Australia: Opisthoncus abnormis L. Koch, 1881 – Australia (Queensland, New South Wales) Opisthoncus albiventris L. Koch, 1881 – Australia (New South Wales) Opisthoncus alborufescens L. Koch, 1880 – Australia (Queensland, New South Wales) Opisthoncus barbipalpis (Keyserling, 1882) – Australia (Queensland) Opisthoncus bellus (Karsch, 1878) – Australia (New South Wales) Opisthoncus bitaeniatus L. Koch, 1880 – Australia (Queensland, New South Wales) Opisthoncus confinis L. Koch, 1881 – Australia (Queensland) Opisthoncus delectabilis Rainbow, 1920 – Australia (Lord Howe Is.) Opisthoncus devexus Simon, 1909 – Australia (Western Australia) Opisthoncus eriognathus (Thorell, 1881) – New Guinea Opisthoncus grassator Keyserling, 1883 – Australia (Queensland) Opisthoncus inconspicuus (Thorell, 1881) – New Guinea Opisthoncus keyserlingi Zabka, 1991 – Australia (New South Wales) Opisthoncus kochi Zabka, 1991 – Australia (New South Wales) Opisthoncus lineativentris L. Koch, 1880 – Australia (Queensland, New South Wales) Opisthoncus machaerodus Simon, 1909 – Australia (Western Australia) Opisthoncus magnidens L. Koch, 1880 – Australia (Queensland, New South Wales) Opisthoncus mandibularis L. Koch, 1880 – Australia (New South Wales) Opisthoncus mordax L. Koch, 1880 – Australia (New South Wales) Opisthoncus necator L. Koch, 1881 – New Guinea, Australia (Queensland, New South Wales) Opisthoncus nigrifemur Strand, 1911 – Papua New Guinea (New Britain) Opisthoncus nigrofemoratus (L. Koch, 1867) – Australia (Queensland) Opisthoncus pallidulus L. Koch, 1880 – Australia (New South Wales) Opisthoncus parcedentatus L. Koch, 1880 – Australia (Queensland, New South Wales) Opisthoncus polyphemus (L. Koch, 1867) (type) – New Guinea, Australia (Queensland, New South Wales). Introduced to New Zealand Opisthoncus quadratarius (L. Koch, 1867) – Australia (Queensland) Opisthoncus rubriceps (Thorell, 1881) – Australia (Queensland) Opisthoncus serratofasciatus L. Koch, 1881 – Australia (New South Wales) Opisthoncus sexmaculatus (C. L. Koch, 1846) – Australia (New South Wales) Opisthoncus tenuipes (Keyserling, 1882) – Australia (Queensland) Opisthoncus unicolor L. Koch, 1881 – Australia (Queensland) Opisthoncus versimilis Peckham & Peckham, 1901 – Australia (Victoria)