# Robertus (spider)

Robertus is a genus of comb-footed spiders that was first described by Octavius Pickard-Cambridge in 1879. It is considered a senior synonym of Garritus.

## Species

As of September 2019 it contains forty-seven species, found in Europe, Asia, North America, the Congo, and on Greenland:
* Robertus alpinus Dresco, 1959 – Italy
* Robertus arcticus (Chamberlin & Ivie, 1947) – USA (Alaska)
* Robertus arundineti (O. Pickard-Cambridge, 1871) – Europe, Turkey, Caucasus, Russia (Europe to South Siberia), Kazakhstan, Central Asia, China
* Robertus banksi (Kaston, 1946) – USA, Canada
* Robertus borealis (Kaston, 1946) – USA, Canada
* Robertus brachati Wunderlich, 2011 – Turkey
* Robertus calidus Knoflach, 1995 – Congo
* Robertus cantabricus Fage, 1931 – Spain
* Robertus cardesensis Dresco, 1959 – Spain
* Robertus crosbyi (Kaston, 1946) – USA, Canada
* Robertus emeishanensis Zhu, 1998 – China
* Robertus eremophilus Chamberlin, 1928 – USA
* Robertus floridensis (Kaston, 1946) – USA
* Robertus frivaldszkyi (Chyzer, 1894) – Central and south-eastern Europe
* Robertus frontatus (Banks, 1892) – USA, Canada
* Robertus fuscus (Emerton, 1894) – USA, Canada, Greenland
* Robertus golovatchi Eskov, 1987 – Georgia
* Robertus heydemanni Wiehle, 1965 – Sweden, Germany, Austria, Italy, Romania, Ukraine, Russia (Europe to West Siberia), Kazakhstan
* Robertus insignis O. Pickard-Cambridge, 1908 – Europe
* Robertus kastoni Eskov, 1987 – Russia (Middle Siberia to Russian Far East), Japan
* Robertus kuehnae Bauchhenss & Uhlenhaut, 1993 – Belgium, Switzerland, Germany, Austria
* Robertus laticeps (Keyserling, 1884) – USA
* Robertus lividus (Blackwall, 1836) – USA (Alaska), Europe, Caucasus, Russia (Europe to Far East), Iran
* Robertus longipalpus (Kaston, 1946) – USA, Canada
* Robertus lyrifer Holm, 1939 – Iceland, Scandinavia, Austria, Russia (Europe to Far East), Canada
* Robertus mazaurici (Simon, 1901) – France
* Robertus mediterraneus Eskov, 1987 – Mediterranean, Switzerland, Austria, Eastern Europe, Caucasus
* Robertus monticola Simon, 1914 – France
* Robertus naejangensis Seo, 2005 – Korea
* Robertus neglectus (O. Pickard-Cambridge, 1871) (type) – Europe, Russia (Europe to South Siberia), Kazakhstan
* Robertus nipponicus Yoshida, 1995 – Japan
* Robertus nojimai Yoshida, 2002 – Japan
* Robertus ogatai Yoshida, 1995 – Japan
* Robertus peregrinus Yang, Irfan & Peng, 2019 – China
* Robertus potanini Schenkel, 1963 – China
* Robertus pumilus (Emerton, 1909) – USA
* Robertus riparius (Keyserling, 1886) – USA, Canada
* Robertus saitoi Yoshida, 1995 – Japan
* Robertus scoticus Jackson, 1914 – Europe, Caucasus, Russia (Europe to Middle Siberia)
* Robertus sibiricus Eskov, 1987 – Russia (Middle Siberia to Far East), Japan
* Robertus similis (Kaston, 1946) – USA
* Robertus spinifer (Emerton, 1909) – USA
* Robertus subtilis Seo, 2015 – Korea
* Robertus truncorum (L. Koch, 1872) – France to Ukraine
* Robertus ungulatus Vogelsanger, 1944 – Europe, Russia (South Siberia to Far East), China
* Robertus ussuricus Eskov, 1987 – Russia (Far East)
* Robertus vigerens (Chamberlin & Ivie, 1933) – USA, Canada
In synonymy:
* R. asper (O. Pickard-Cambridge, 1871) = Robertus neglectus (O. Pickard-Cambridge, 1871)
* R. exortus (Drensky, 1929, T from Agroeca) = Robertus frivaldszkyi (Chyzer, 1894)
* R. fuscus (Emerton, 1911) = Robertus fuscus (Emerton, 1894)
* R. grasshoffi Wunderlich, 1973 = Robertus neglectus (O. Pickard-Cambridge, 1871)
* R. palustris (Banks, 1892) = Robertus laticeps (Keyserling, 1884)
* R. paradoxus Miller, 1967 = Robertus ungulatus Vogelsanger, 1944
* R. terrestris (Emerton, 1913) = Robertus frontatus (Banks, 1892)
* R. umbilicatus Denis, 1961 = Robertus mazaurici (Simon, 1901)