On a collection of aquatic beetles (Insecta: Coleoptera) from Southern Eastern Ghats, Tamil Nadu, India Author Dash, Swetapadma Author Ghosh, Sujit Kumar text Records of the Zoological Survey of India 2022 122 1 91 95 journal article 10.26515/rzsi/v122/i1/2022/151058 2581-8686 4. Sandracottus festivus (Illiger, 1801) 1801. Dyticus festivus Illiger, Magazin fur Insektenkunde, Braunschweig , 1 (1-2): 166. 1882. Sandracottus festivus : Sharp, Sci. Trans. R. Dublin Soc, 2 : 686. 2012. Sandracottus festivus : Ghosh & Nilsson, Skorvnopparn Umel supplement , 3 : 18. Material examined : Dist. Salem, Vaniyar Reserve Forest , 11°49’06.3”N , 78°16’19.4”E , alt. 791m , 21.i.2019 , coll. S. Dash and Party , 01 ♀ ( Reg. No. 25991/H4A) . Distribution : India : Andhra Pradesh , Arunachal Pradesh , Assam , Himachal Pradesh , Jharkhand , Madhya Pradesh , Maharashtra , Odisha , Punjab and Tamil Nadu ( Ghosh & Nilsson, 2012 ). Elsewhere : China , Pakistan and Sri Lanka . V. Genus Hydaticus Leach, 1817 1817. Hydaticus Leach, Zool. Miscell , 3 : 69, 72. 2012. Hydaticus : Ghosh & Nilsson, Skorvnopparn Umel supplement 3 : 24.