A semi-quantitative research was made on the intestinal content of certain collembolae species, of the Orchesella and Tomocerus genera. The findings clarified the dietary question, making it possible to pinpoint the contribution made by various alimentary components. Considerable differences were discovered between species of the two genera studied and also between the three Orchesella species examined. As for Tomocerus minor, feeding habits change from one period of the year to another. The constant presence of fungal hyphae-and spores indicates that the species studied still have strong connection with the soil. Thus these species continue to follow a hemiedaphic behaviour pattern, even with a morphology typical of epigeal forms.