H. Ma, S. Pei, Y. Li, and B. Shi, “Discovery of the subgenus Lithobius (Sigibius) Chamberlin, 1913 (Chilopoda: Lithobiomorpha: Lithobiidae) in East Asia: A review the Chinese species”, Zootaxa, vol. 3348, no. 1, pp. 56–62, Jun. 2012.