Sankaran, P.M., Malamel, J.J., Joseph, M.M. and Sebastian, P.A. 2015. Theridion echinatum Gao & Li, 2014, a junior synonym of Theridion zonulatum Thorell, 1890 (Araneae, Theridiidae) with comments on its web architecture. Zootaxa. 4007, 1 (Aug. 2015), 138–142. DOI:https://doi.org/10.11646/zootaxa.4007.1.12.