P. M. Sankaran, J. J. Malamel, M. M. Joseph, and P. A. Sebastian, “Theridion echinatum Gao & Li, 2014, a junior synonym of Theridion zonulatum Thorell, 1890 (Araneae, Theridiidae) with comments on its web architecture”, Zootaxa, vol. 4007, no. 1, pp. 138–142, Aug. 2015.