Detection of organisms in the faeces of wasp larvae a Proportion of MOTUs corresponding to the main categories (left hand-side) and detailed categories excluding fungi (right hand-side) b Number of reads per sample in relation to wasp species (left boxplots) and number of reads in inner versus outer samples (right boxplots) c Total number of reads corresponding to marine, predator and terrestrial invertebrate prey DNA after removal of fungal DNA in both wasp species (left) and in outer versus inner samples (right).