Genus Vol. 20(4): 615-722 Wrocław, 28 XII 2009 New records of Neotropical tortoise beetles (Coleoptera: Chrysomelidae: Cassidinae) Lech Borowiec Department of Biodiversity and Evolutionary Taxonomy, University of Wrocław, Przybyszewskiego 63/77, 51-148 Wrocław, Poland, e-mail: cassidae@biol.uni.wroc.pl ABstrAct. Stolas tachiraensis, new species, is described from Venzuela. Cyclosoma gloriosa (BALy, 1859) is restored from synonymy of Cyclosoma mirabilis (BohemAn, 1856). Two new synonyms are proposed: Botanochara matogrossoensis Borowiec, 2006 is junior synonym of Botanochara ricardoi (Buzzi, 1998) new combination, and Eugenysa jasinskii Borowiec et Dąbrowska, 1997 is junior synonym of Eugenysa subopaca (spAeth, 1919). New records of 492 Cassidinae species from Neotropical Region are given: Brazil (118), Argentina (96), Peru (78), Bolivia (70), Ecuador (64), Venezuela (56), Costa Rica (51), Mexico (51), Panama (45), French Guyana (34), Colombia (27), Guatemala (20), Belize (18), Paraguay (18), Honduras (17), El Salvador (11), Surinam (11), Nicaragua (9), Trinidad and Tobago (8), Uruguay (7), Dominican Republic (7), Cuba (2), Dominica (2), Guadeloupe (2), Chile (1), Guyana (1), Haiti (1), and Martinique (1); 109 new country records are given. Key words: entomology, zoogoegraphy, taxonomy, new species, Coleoptera: Chrysomelidae: Cassidinae, Neotropical Region. This paper is the third faunistic contribution to the knowledge of Neotropical Cassidinae. In the irst contribution I recorded 719 species (Borowiec 1996) and 427 in the second (Borowiec 2002). Like in my previuos papers (Borowiec 1996, 2002) I treat Cassidinae in a traditional way, i.e. including all the genera listed by Hincks (1952). The list contains 492 Cassidinae species from Neotropical Region: Brazil (118), Argentina (96), Peru (78), Bolivia (70), Ecuador (64), Venezuela (56), Costa Rica (51), Mexico (51), Panama (45), French Guyana (34), Colombia (27), Guatemala (20), Belize (18), Paraguay (18), Honduras (17), El Salvador (11), Surinam (11), Nicaragua (9), Trinidad and Tobago (8), Uruguay (7), Dominican Republic (7), Cuba (2), Dominica (2), Guadeloupe (2), Chile (1), Guyana (1), Haiti (1), and Martinique (1); 109 new