Mari Mutt, José A. “Four New Species of Dicranocentrus and Heteromurus from the State of Mérida, Venezuela (Collembola: Entomobryidae)”. The Journal of Agriculture of the University of Puerto Rico 67, no. 2 (April 1, 1983): 148-164. Accessed January 28, 2022. https://revistas.upr.edu/index.php/jaupr/article/view/7703.