The observed species richness (62 species) and mean activity density (aAD = 13.9) are within confidence intervals for the expected values computed by means of bootstrapping (61–79, 9.2–18.8, respectively); hence, sampling intensities were adequate in the studied sites. We collected 10,189 individuals belonging to 62 species, of which 32 were in tilled olive groves, 21 were in half-cropland and 49 were in cover-cropped fields. The aAD of the collected species, their scientific names and authorities, has been presented in S1 Table, which shows that most of the species were scattered among the different sample sites, with 31% of the species captured in one site (singletons) and 21% on two sites (doubletons). Only two generalist predators, Pterostichus melas italicus and Calathus fuscipes, were collected from all sites, with values ranging between 0.56–9.89 and between 0.71–31.92 respectively. Five species, Pseudophonus rufipes, Calathus cinctus, Calathus montivagus, Carabus coriaceus mediterraneus and Laemostenus cimmerius, were found in more than 50% of the sampled sites.