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Abstract
The plant substrate specificity of the Iberian species of Hemerobiidae was studied using data obtained from samples made between 1976 and 1993. The study is based on 2875 specimens collected on 67 plant species, mainly trees or shrubs. The habitat amplitude is analysed and highly stenotopic species such as Hemerobius nitidulus, H. gilvus, H. contumax, H. lutescens, Sympherobius fuscescens and S. gratiosus were observed to be specifically associated with certain plant species belonging to different genera such as Abies, Pinus, Quercus, and Populus. Other relatively eurytopic species such as Wesmaelius subnebulosus, Sympherobius elegans and S. pygmaeus are associated with certain types of vegetation, but are present on a very wide range of plant substrates. Other brown lacewing species collected mostly at light or in Malaise traps, such as Wesmaelius navasi, Sympherobius fallax, and most species of Megalomus (M. tortricoides, M. pyraloides and M. tineoides) and Micromus (M. variegatus, M. paganus and M. angulatus), do not reveal any correlation with the plant species studied.