Virkki, N. and Denton, A. (1987) “BRIEF NOTES ON THE CYTOLOGY OF NEOTROPICAL COLEOPTERA 4. CHALCOLEPIDIUS SILBERMANNI CHEVROLAT (ELATERIDAE:PYROPHORINI)”, The Journal of Agriculture of the University of Puerto Rico, 71(3), pp. 323–326. doi: 10.46429/jaupr.v71i3.6974.