This data release includes individual lengths, total dry mass, and taxonomic classification for a subset of adult aquatic insects captured emerging from the surface of wadeable wetlands in cropland and grassland landscapes across a salinity/hydrology gradient (N = 14 wetlands in 2015, N = 15 wetlands in 2016). Sampling was completed in late spring, after ice off was complete and during the local bird breeding season. Wetlands were situated on 3 USFWS Waterfowl Protection Areas and 2 private farms in Stutsman County, North Dakota, USA. Other portions of this data such as sampling locations and pesticide concentrations are reported in Kraus et al. 2021 (
https://doi.org/10.5066/P971S7IV)