Manivannan, D., and J. Issaque Madani. “Two New Species <i>Hydrovatus sringeriensis< i> and <i>Copelatus wayanadensis< I> (Coleoptera: Dytiscidae) from Western Ghats of South India”. Records of the Zoological Survey of India, vol. 111, no. 2, June 2011, pp. 1-6, doi:10.26515/rzsi/v111/i2/2011/158859.