Ren, B.-Z., N. Li, W.-J. Wei, and L.-M. Wang. “C-Banding Karyotypes of Two Species of Primnoa (Orthoptera: Catantopidae) from Northeast China”. Zootaxa, vol. 1679, no. 1, Jan. 2008, pp. 63–68, doi:10.11646/zootaxa.1679.1.4.