Blackmer, J.L. and Hanson, P. 1997. Abundance and life history of two gall-inducing homopterans on Nectandra salicina (Lauraceae) in Monteverde, Costa Rica. Revista de Biología Tropical. 45, 3 (Sep. 1997), 1131–1137. DOI:https://doi.org/10.15517/rbt.v45i3.32120.