Opopaea is a genus of goblin spiders of the family Oonopidae. The genus is one of the largest within the family, with 180 accepted species.
Spiders of the genus are very small, less than 2 mm long. They are usually a reddish-brown color. They have six eyes: four posterior in a straight row, and two anterior.
Opopaea aculeata Baehr & Harvey, 2013 — Western AustraliaOpopaea acuminata Baehr, 2013 — New South WalesOpopaea addsae Baehr & Harvey, 2013 — New South WalesOpopaea alje Saaristo & Marusik, 2008 — TanzaniaOpopaea ameyi Baehr, 2013 — QueenslandOpopaea amieu Baehr, 2013 — New CaledoniaOpopaea andranomay Andriamalala & Hormiga, 2013 — MadagascarOpopaea andringitra Andriamalala & Hormiga, 2013 — MadagascarOpopaea ankarafantsika Andriamalala & Hormiga, 2013 — MadagascarOpopaea ankarana Andriamalala & Hormiga, 2013 — MadagascarOpopaea antoniae Baehr, 2013 — Queensland, New South WalesOpopaea antsalova Andriamalala & Hormiga, 2013 — MadagascarOpopaea antsiranana Andriamalala & Hormiga, 2013 — MadagascarOpopaea apicalis (Simon, 1893) — PantropicalOpopaea aurantiaca Baehr & Harvey, 2013 — Western AustraliaOpopaea auriforma Tong & Li, 2013 — ChinaOpopaea banksi (Hickman, 1950) — AustraliaOpopaea batanguena Barrion & Litsinger, 1995 — PhilippinesOpopaea bemaraha Andriamalala & Hormiga, 2013 — MadagascarOpopaea bemarivo Andriamalala & Hormiga, 2013 — MadagascarOpopaea berenty Andriamalala & Hormiga, 2013 — MadagascarOpopaea berlandi (Simon & Fage, 1922) — East AfricaOpopaea betioky Andriamalala & Hormiga, 2013 — MadagascarOpopaea bicolor Baehr, 2013 — New CaledoniaOpopaea billroth Baehr & Harvey, 2013 — Western AustraliaOpopaea botswana Saaristo & Marusik, 2008 — BotswanaOpopaea brisbanensis Baehr, 2013 — QueenslandOpopaea broadwater Baehr, 2013 — Queensland, AustraliaOpopaea burwelli Baehr, 2013 — New CaledoniaOpopaea bushblitz Baehr, 2013 — New South WalesOpopaea calcaris Baehr, 2013 — New CaledoniaOpopaea callani Baehr & Harvey, 2013 — Western AustraliaOpopaea calona Chickering, 1969 — USAOpopaea carnarvon Baehr, 2013 — QueenslandOpopaea carteri Baehr, 2013 — QueenslandOpopaea chrisconwayi Baehr & Harvey, 2013 — QueenslandOpopaea concolor (Blackwall, 1859) — PantropicalOpopaea conujaingensis (Xu, 1986) — ChinaOpopaea cornuta Yin & Wang, 1984 — ChinaOpopaea cowra Baehr & Harvey, 2013 — Western AustraliaOpopaea deserticola Simon, 1891 — PantropicalOpopaea diaolaushan Tong & Li, 2010 — ChinaOpopaea douglasi Baehr, 2013 — QueenslandOpopaea durranti Baehr & Harvey, 2013 — Western AustraliaOpopaea ectognophus Harvey & Edward, 2007 — Western AustraliaOpopaea ephemera Baehr, 2013 — Northern TerritoryOpopaea euphorbicola Strand, 1909 — Ascension IslandsOpopaea exoculata Baehr & Harvey, 2013 — Western AustraliaOpopaea fiji Baehr, 2013 — FijiOpopaea fishriver Baehr, 2013 — Northern TerritoryOpopaea flabellata Tong & Li, 2013 — ChinaOpopaea flava Baehr & Harvey, 2013 — Western AustraliaOpopaea floridana (Banks, 1896) — USAOpopaea foulpointe Andriamalala & Hormiga, 2013 — MadagascarOpopaea foveolata Roewer, 1963 — PacificOpopaea fragilis Baehr & Harvey, 2013 — Western AustraliaOpopaea framenaui Baehr & Harvey, 2013 — Western AustraliaOpopaea furcula Baehr & Harvey, 2013 — ChinaOpopaea gabon Saaristo & Marusik, 2008 — GabonOpopaea gaborone Saaristo & Marusik, 2008 — BotswanaOpopaea gerstmeieri Baehr, 2013 — New South WalesOpopaea gibbifera Tong & Li, 2008 — ChinaOpopaea gilliesi Baehr, 2013 — Northern TerritoryOpopaea goloboffi Baehr, 2013 — New CaledoniaOpopaea gracilis Baehr & Harvey, 2013 — Western AustraliaOpopaea gracillima Baehr & Harvey, 2013 — Western AustraliaOpopaea harmsi Baehr & Harvey, 2013 — Western AustraliaOpopaea hawaii Baehr, 2013 — HawaiiOpopaea hoplites (Berland, 1914) — East AfricaOpopaea ita Ott, 2003 — BrazilOpopaea itampolo riamalala & Hormiga, 2013 — MadagascarOpopaea johannae Baehr & Harvey, 2013 — Western AustraliaOpopaea johardingae Baehr, 2013 — Northern TerritoryOpopaea jonesae Baehr, 2013 — QueenslandOpopaea julianneae Baehr & Ott, 2013 — Western AustraliaOpopaea kirindy Andriamalala & Hormiga, 2013 — MadagascarOpopaea kulczynskii (Berland, 1914) — East AfricaOpopaea lambkinae Baehr, 2013 — QueenslandOpopaea lebretoni Baehr, 2013 — New South WalesOpopaea leica Baehr, 2013 — QueenslandOpopaea leichhardti Baehr, 2013 — QueenslandOpopaea lemniscata Tong & Li, 2013 — LaosOpopaea linea Baehr, 2013 — Queensland, New South WalesOpopaea lingua Saaristo, 2007 — IsraelOpopaea macula Tong & Li, 2013 — ChinaOpopaea magna Baehr, 2013 — New South WalesOpopaea mahafaly Andriamalala & Hormiga, 2013 — MadagascarOpopaea manderano Andriamalala & Hormiga, 2013 — MadagascarOpopaea manongarivo Andriamalala & Hormiga, 2013 — MadagascarOpopaea marangaroo Baehr & Harvey, 2013 — Western AustraliaOpopaea margaretehoffmannae Baehr & Smith, 2013 — New South WalesOpopaea margaritae (Denis, 1947) — EgyptOpopaea maroantsetra Andriamalala & Hormiga, 2013 — Comoro IslandsOpopaea martini Baehr, 2013 — New South WalesOpopaea mattica Simon, 1893 — Gabon, South AfricaOpopaea mcleani Baehr, 2013 — QueenslandOpopaea media Song & Xu, 1984 — ChinaOpopaea meditata Gertsch & Davis, 1936 — USAOpopaea michaeli Baehr & Smith, 2013 — New South WalesOpopaea millbrook Baehr, 2013 — South AustraliaOpopaea milledgei Baehr, 2013 — New South WalesOpopaea millstream Baehr & Harvey, 2013 — Western AustraliaOpopaea mollis (Simon, 1907) — Sri LankaOpopaea monteithi Baehr, 2013 — New CaledoniaOpopaea mundy Baehr, 2013 — South AustraliaOpopaea nadineae Baehr & Harvey, 2013 — Western AustraliaOpopaea namoroka Andriamalala & Hormiga, 2013 — MadagascarOpopaea ndoua Baehr, 2013 — New CaledoniaOpopaea nibasa Saaristo & van Harten, 2006 — YemenOpopaea nitens Baehr, 2013 — New South WalesOpopaea olivernashi Baehr, 2011 — QueenslandOpopaea ottoi Baehr, 2013 — New South WalesOpopaea palau Baehr, 2013 — PalauOpopaea pallida Baehr & Harvey, 2013 — Western AustraliaOpopaea pannawonica Baehr & Ott, 2013 — Western AustraliaOpopaea phineus Harvey & Edward, 2007 — Western AustraliaOpopaea pilbara Baehr & Ott, 2013 — Western AustraliaOpopaea plana Baehr, 2013 — New South WalesOpopaea platnicki Baehr, 2013 — New CaledoniaOpopaea plumula Yin & Wang, 1984 — ChinaOpopaea preecei Baehr, 2013 — Northern TerritoryOpopaea probosciella Saaristo, 2001 — SeychellesOpopaea proserpine Baehr, 2013 — QueenslandOpopaea punctata (O. P.-Cambridge, 1872) — Lebanon, Israel, other records doubtfulOpopaea raveni Baehr, 2013 — New CaledoniaOpopaea rigidula Tong & Li, 2013 — ChinaOpopaea rixi Baehr & Harvey, 2013 — Western AustraliaOpopaea robusta Baehr & Harvey, 2013 — Western AustraliaOpopaea rogerkitchingi Baehr, 2011 — QueenslandOpopaea rugosa Baehr & Ott, 2013 — Western AustraliaOpopaea saaristoi Wunderlich, 2011 — CyprusOpopaea sallami Saaristo & van Harten, 2006 — YemenOpopaea sanaa Saaristo & van Harten, 2006 — YemenOpopaea sandranantitra Andriamalala & Hormiga, 2013 — MadagascarOpopaea santschii Brignoli, 1974 — Tunisia, Cyprus, Egypt, IsraelOpopaea sanya Tong & Li, 2010 — ChinaOpopaea sauteri Brignoli, 1974 — TaiwanOpopaea sedata Gertsch & Mulaik, 1940 — USAOpopaea semilunata Tong & Li, 2013 — ChinaOpopaea shanasi Saaristo, 2007 — IsraelOpopaea silhouettei (Benoit, 1979) — Seychelles, Rapa NuiOpopaea simoni (Berland, 1914) — East AfricaOpopaea simplex Baehr, 2013 — New South WalesOpopaea sown Baehr, 2013 — Queensland, New South WalesOpopaea speciosa (Lawrence, 1952) — South Africa, YemenOpopaea speighti Baehr, 2013 — QueenslandOpopaea spinosa Saaristo & van Harten, 2006 — YemenOpopaea sponsa Brignoli, 1978 — BhutanOpopaea stanisici Baehr, 2013 — QueenslandOpopaea stevensi Baehr, 2013 — South AustraliaOpopaea striata Baehr, 2013 — New CaledoniaOpopaea sturt Baehr, 2013 — Ne South WalesOpopaea subtilis Baehr & Harvey, 2013 — Western AustraliaOpopaea sudan Saaristo & Marusik, 2008 — SudanOpopaea suelewisae Baehr & Smith, 2013 — New South WalesOpopaea suspecta Saaristo, 2002 — SeychellesOpopaea syarakui (Komatsu, 1967) — JapanOpopaea sylvestrella Baehr & Smith, 2013 — New South WalesOpopaea tenuis Baehr, 2013 — New South WalesOpopaea torotorofotsy Andriamalala & Hormiga, 2013 — MadagascarOpopaea touho Baehr, 2013 — New CaledoniaOpopaea triangularis Baehr & Harvey, 2013 — Western AustraliaOpopaea tsimaloto Andriamalala & Hormiga, 2013 — MadagascarOpopaea tsimembo Andriamalala & Hormiga, 2013 — MadagascarOpopaea tsingy Andriamalala & Hormiga, 2013 — MadagascarOpopaea tsijoriaky Andriamalala & Hormiga, 2013 — MadagascarOpopaea tuberculata Baehr, 2013 — New CaledoniaOpopaea tumida Tong & Li, 2013 — LaosOpopaea ulrichi Baehr, 2013 — QueenslandOpopaea ursulae Baehr, 2013 — New South WalesOpopaea viamao Ott, 2003 — BrazilOpopaea vitrispina Tong & Li, 2010 — ChinaOpopaea vohibazaha Andriamalala & Hormiga, 2013 — MadagascarOpopaea wheelarra Baehr & Ott, 2013 — Western AustraliaOpopaea whim Baehr & Harvey, 2013 — Western AustraliaOpopaea wongalara Baehr, 2013 — Northern TerritoryOpopaea yorki Baehr, 2013 — New South WalesOpopaea yukii Baehr, 2013 — QueenslandOpopaea zhengi Tong & Li, 2013 — China