Virkki, N. and Sepúlveda, J.M. 1990. Chromosomes of the Puerto Rican "vaquita," Diaprepes abbreviatus (L.) (Curculionidae: Otiorrhynchinae: Phyllobiini). The Journal of Agriculture of the University of Puerto Rico. 74, 2 (Apr. 1990), 121–132. DOI:https://doi.org/10.46429/jaupr.v74i2.6544.