- Afghanistan
- Omodeo, 1959
- Albania
- Szederjesi and Csuzdi, 2012b
- Algeria
- Omodeo et al., 2003; Bazri et al., 2013; Zeriri et al., 2013
- Argentina
- See review
- National review per state:
- Mischis, 2007: Buenos Aires, Chubut, Córdoba, Entre Ríos, Río Negro, Santa Fe, Tucumán
- Austria
- Christian and Zicsi, 1999
- Azores
- Sciacchitano, 1969
- Belarus
- Maksimova and Mukhin, 2009
- Bermuda
- Reynolds and Wetzel, 2008
- Brazil
- See review
- National review per state:
- Brown and James, 2007: Rio Grande do Sul, Santa Catarina, São Paulo, Paraná, Rio de Janeiro, Minas Gerais
- Bulgaria
- Zicsi and Csuzdi, 1986b; Tsekova and Bogoev, 2010; Stojanovic et al., 2012; Valchovski, 2012
- Canada
- Reynolds, 1995; Ontario: Reynolds, 1977; Quebec: Reynolds, 1975d, 1976c; Lesage and Swert, 1978; Reynolds and Reynolds, 1992
- National reviews per province:
- Reynolds and Wetzel, 2004: Widespread, probably in all provinces.
- Reynolds and Wetzel, 2008: Widespread, probably in all provinces.
- Canary Islands
- Talavera, 2007, 2007b
- Chile
- Zicsi and Csuzdi, 2007
- Colombia
- Feijoo, 2007b
- Denmark
- Blakemore, 2007
- Ecuador
- Zicsi, 2007
- Finland
- Terhivuo, 1988b
- France
- Bouche, 1972
- French Guiana
- Cernosvitov, 1934; Cernosvitov, 1935
- Georgia
- Bakhtadze et al., 2008
- Greece
- Szederjesi and Csuzdi, 2012
- Greenland
- Stop-Bowitz, 1969; Blakemore, 2007b
- Guatemala
- Brown and Fragoso, 2007
- Hawaii
- Reynolds and Wetzel, 2008
- Hungary
- Csuzdi and Zicsi, 2003
- Iceland
- Stop-Bowitz, 1969; Blakemore, 2007b
- India
- Jharkhand: Sinha et al., 2013
- Indonesia
- Blakemore, 2006
- Iran
- Ezzatpanah, 2010; Mirmonsef et al., 2011; Farhadi et al., 2013
- Israel
- Omodeo, 1959; Csuzdi and Pavlicek, 2005b
- Japan
- Blakemore, 2003, 2003b
- Jordan
- Csuzdi and Pavlicek, 2005; Szederjesi et al., 2013
- Kazakhstan
- Abukenova, 2010
- Kirghizstan
- Omodeo, 1959
- Latvia
- Ventins, 2011c
- Lebanon
- Omodeo, 1959
- Lithuania
- Atlavinyte, 1989; Kriauceliunaite, 2006
- Madeira
- Talavera, 1996
- Moldova
- Senicovscaia, 2014
- Mongolia
- Blakemore, 2013d
- Montenegro
- Stojanovic and Karaman, 2003b
- Morocco
- Omodeo et al., 2003
- Nepal
- Panday et al., 2014
- New Zealand
- Lee, 1959; Martin, 1977; Kermadec Islands: Blakemore, 2006c
- Nicaragua
- Sherlock et al., 2011
- Norway
- Stop-Bowitz, 1969; Blakemore, 2007.
- Pakistan
- Ghafoor et al., 2008
- Paraguay
- Brown and Fragoso, 2007b
- Peru
- Rombke, 2007
- Poland
- Kasprzak, 1989
- Puerto Rico
- Reynolds and Wetzel, 2008
- Portugal
- Trigo et al., 1988
- Romania
- Pop, 2012.
- Russia
- Perel, 1979; Perel-Vsevolodova, 1997; Blakemore, 2007c; Kamchatka: Shekhovtsov et al., 2014
- Saint Helena Island
- Blakemore, 2008c
- Serbia
- Milutinovic, 2010
- Spain
- Diaz Cosin et al., 1992; Monroy et al., 2003; Perez Onteniente and Rodriguez Babio, 2009
- Sweden
- Blakemore, 2007
- Syria
- Omodeo, 1959
- Tajikistan
- Omodeo, 1959
- Taiwan
- Blakemore et al., 2006
- Thailand
- Blakemore, 2006d
- Turkey
- Omodeo and Rota, 1989; Csuzdi et al., 2006; Misirlioglu, 2008
- Ukraine
- Bolotetskii and Kodolova, 2005.
- United Kingdom
- Sims and Gerard, 1985, 1999; Scotland: Carpenter, 2011
- United States
- Reynolds, 1995; Alaska: Bowser et al., 2013
- National reviews per state:
- Reynolds and Wetzel, 2008: widespread, probably in all states
- Reynolds and Wetzel, 2008: widespread, probably in all states
- Uruguay
- Grosso and Brown, 2007
- Uzbekistan
- Omodeo, 1959; Rakhmatullaev et al., 2010
- Venezuela
- Brown and Fragoso, 2007b
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