Key to the North American tribes and genera of herb, rose, bramble, and inquiline gall wasps (Hymenoptera, Cynipoidea, Cynipidae sensu lato) Author Nastasi, Louis F. https://orcid.org/0000-0001-7825-480X Frost Entomological Museum, Department of Entomology, The Pennsylvania State University, 501 Agricultural Science & Industries Building, University Park, PA, 16802, USA lfnastasi@gmail.com Author Buffington, Matthew L. https://orcid.org/0000-0003-1900-3861 Systematic Entomology Laboratory, USDA-ARS, c / o National Museum of Natural History, Smithsonian Institution, PO Box 37012, MRC 168, Washington, DC, 20013, USA Author Davis, Charles K. https://orcid.org/0000-0001-6056-3903 Frost Entomological Museum, Department of Entomology, The Pennsylvania State University, 501 Agricultural Science & Industries Building, University Park, PA, 16802, USA Author Deans, Andrew R. https://orcid.org/0000-0002-2119-4663 Frost Entomological Museum, Department of Entomology, The Pennsylvania State University, 501 Agricultural Science & Industries Building, University Park, PA, 16802, USA text ZooKeys 2024 2024-03-25 1196 177 207 http://dx.doi.org/10.3897/zookeys.1196.118460 journal article http://dx.doi.org/10.3897/zookeys.1196.118460 1313-2970-1196-177 D10E0EA016D742B983D93871CBF06FE1 14134BBB9A435A4088CCFC53DC50430B Diastrophini Figs 73-75 , 92-94 Diagnosis. Pronotum tall and broad dorsomedially. Pronotal submedial pits distinct and well-impressed. Pronotal plate present and complete, distinct both dorsally and ventrally. Mesopleuron sculpture striate or smooth and shining. Mesoscutellar foveae distinct. Fore wing with marginal cell entirely open or entirely closed, never partially open. Wings often with darkened areas, especially around the marginal cell. Metatarsal claws always with basal lobe. Metasomal tergites 2 and 3 either free and articulate, or fused into a syntergite in some females. Figures 73-75. 73 Diastrophus kincaidii , lateral view (PSUC_FEM 000251280) 74 Periclistus sp., lateral view (PSUC_FEM 000250920) 75 Synophromorpha sp., lateral view (PSUC_FEM 000250918). Note. Diastrophini includes 25 described North American species in three genera: Diastrophus Hartig, 1840, Periclistus Foerster , 1869, and Synophromorpha Ashmead, 1903 ( Nastasi and Deans 2021 ). The North American members of this tribe are gall inducers on various Rosaceae or inquilines in the galls of Diastrophus Hartig, 1840 or Diplolepis Geoffroy, 1762 ( Nastasi and Deans 2021 ).