摘要：The paper discusses the biological and ecological characteristics and distribution of 12 caddisfly species that have been ascertained to be rare, or even discovered for the first time, in Croatia: Rhyacophila palmeni, R. vulgaris, Glosossoma conformis, Wormaldia pulla, Hydroptila forcipata, Plectrocnemia geniculata, Micrasema minimum, Limnephilus graecus, Ceraclea riparia, Oecetis notata, Setodes punctatus, S. bulgaricus. Of these, the species that have been newly established for Croatia are: Plectrocnemia geniculate, Ceraclea riparia, Oecetis notata and Setodes bulgaricus, while the presence of the species Rhyacophila vulgaris, Micrasema minimum and Setodes punctatus has been established with confidence in the Croatian fauna for the first time (precise data of localities).
