Ignacimuthu S, S. K, and B. T. T. “Studies on External Genitalial Morphology of Subfamily Catocalinae (Lepidoptera: Noctuidae)”. Journal of Research in Biology, Vol. 1, no. 8, Dec. 2011, pp. 631-42, https://ojs.jresearchbiology.com/ojs1/index.php/jrb/article/view/155.