Liu, W., Y. Shi, W. Cao, and C. Yan. “A New Record of the Genus Xylotopus Oliver (Diptera: Chironomidae) from China”. Journal of the Entomological Research Society, Vol. 21, no. 3, Nov. 2019, pp. 355-60, http://www.entomol.org/journal/index.php/JERS/article/view/1619.