Abstract
Four new species of Laboulbenia parasitic on Curculionidae (Insecta, Coleoptera) from Ecuador are described. These are L. dichroma on Geraeus sp. (Conoderinae, Barididae, Madarini); L. elephantina on Udeus sp. (Curculioninae, Eugnomini); L. inopinata on Lechriops spp. (Conoderinae, Lechriopini) and Macrocopturus spp. (Conoderinae, Zygopini); L. microcarpa on Sicoderus sp. and Lancearius esau (Curculioninae, Erodiscini).