Book Synopsis
Profusely illustrated keys are provided to identify females for the known (68 spp.) and expected (5 spp.) tabanids of the Pacific Northwest (PNW), i.e., Apatolestes, 2 spp.; Stonemyia, 2 spp.; Silvius, 4 spp.; Chrysops, 15 spp.; Haematopota, 1 sp.; Tabanus, 12 spp. (11+1); Atylotus, 4 spp.; and Hybomitra, 33 spp. (29+4). A species-page that includes a dot-distribution map showing collection localities for known PNW species is provided for each of the species. A total of 2,766 specimens were examined and additional data were extracted from unpublished datasets. In total, we have records for 1,383 localities in the PNW. Also included is a brief history of tabanid studies in the PNW, comments on recent changes in scientific names and a discussion regarding intraspecific variation in selected species.