Arthropod abundances, species, and mowing treatment data. Mowing experiments conducted in and around Darmstadt on 10 meadows, 2023. Collection of arthropods using suction sampling (biocoenometer). Treatments: three different mowers and corresponding refuges. Urban mowers: Mulcher_normal: a conventional flail mulcher (Müthing), Mulcher_Oeko: a potentially “insect-friendly” roadside eco mulcher with a scare device mounted in the front (Müthing), and bar_mower: a bar mower (Kersten). The collection was directly before mowing, directly after, and three days later.