"Partial dataset";Locality;Period;Observations;Observer(s) 01;"Netherlands, Zuid-Holland, Westvoorne, Oostvoorne, Weeversduin";1964;135,329;"R.Vis, D.A. Vestergaard and and J.G. v.d. Made (Vestergaard et al. 1973)" 02;"Netherlands, Zuid-Holland, Westvoorne, Oostvoorne, Weeversduin";1963;130,327;"R.Vis, D.A. Vestergaard and and J.G. v.d. Made (Vestergaard et al. 1973)" 03;"Netherlands, Zuid-Holland, Wassenaar, Bierlap";1955-1956;4,716;"J.A.W. Lucas, and A. van Tol" 04;"Netherlands, Zuid-Holland, Rotterdam, Hoek van Holland";1999-2005;7,375;"N.W. Elfferich, J.A.W. Lucas, and R. van Tilborg" 05;"Netherlands, Zuid-Holland, Albrandswaard, Rhoon";1995-1999;7,369;"N.W. Elfferich, J.A.W. Lucas, and R. van Tilborg" 06;"Netherlands, Zuid-Holland, Dordrecht, Kop van ’t Land (Fig. 1)";1987-2005;8,727;"R. Vis, and D.O. Visser (Vis and Visser 2007)" 07;"Netherlands, Zuid-Holland, Krimpenerwaard, Lekkerkerk, Bakkerswaal";1985-1988;9,590;"N.W. Elfferich, and J.A.W. Lucas" 08;"Netherlands, Zuid-Holland, Westland, ’s-Gravenzande, Staelduinse Bos";1989-1993;7,441;"N.W. Elfferich, and J.A.W. Lucas" 09;"Netherlands, Zuid-Holland, Zuidplas, Nieuwerkerk a/d IJssel, Hitland";2000-2006;2,597;"N.W. Elfferich, J.A.W. Lucas, R. van Tilborg" 10;"Netherlands, Noord-Brabant, Rucphen, Schijf";2000;912;"Elfferich, J.A.W. Lucas, and R. van Tilborg" 11;"Netherlands, Zuid-Holland, Westland, ’s-Gravenzande, Staelduinse Bos";1989-1993;1,525;"A.M. van Oosten, and N.W. Elfferich" 12;"Netherlands, butterflies from multiple localities";1947-2010;909;"R. Vis" 13;"Netherlands, Noord-Brabant, Boxtel, Kampinasche Heide";1959;2,148;"R. Vis, D.A. Vestergaard, and J.G. van der Made" 14;"Netherlands, Overijssel, Dinkelland, Denekamp";2003;627;"R. Vis, and D.O. Visser" 15;"Netherlands, multiple localities";1957-2013;8,816;"R. Vis" 16;"Netherlands, multiple localities";"1959, 2008-2009";1,043;"R. Vis, D.O. Visser, J.G. van der Made" 17;"Netherlands, Noord-Holland, Texel, Hoge Berg";2010;190;"J. Kuchlein" 18;"Netherlands, multiple localities";1992-2020;557,261;"Team urban ecologists from Bureau Stadsnatuur Rotterdam"