Hadronotus pennsylvanicus (Ashmead) Talamas & Bremer & Moore & Bon & Lahey & Roberts & Combee & McGathey & van Noort & Timokhov & Hougardy & Hogg, 2021

Talamas, Elijah J., Bremer, Jonathan S., Moore, Matthew R., Bon, Marie-Claude, Lahey, Zachary, Roberts, Cheryl G., Combee, Lynn A., McGathey, Natalie, van Noort, Simon, Timokhov, Alexander V., Hougardy, Evelyne & Hogg, Brian, 2021, A maximalist approach to the systematics of a biological control agent: Gryon aetherium Talamas, sp. nov. (Hymenoptera, Scelionidae), Journal of Hymenoptera Research 87, pp. 323-480 : 323

Hadronotus pennsylvanicus (Ashmead) comb. nov.

? Telenomus pennsylvanicus Ashmead, 1893: 144, 160 (original description, keyed).

Hadronotus ajax Girault, 1920: 181 (original description. Synonymized by Masner (1983)); Masner, 1983: 146 (junior synonym of Gryon pennsylvanicum (Ashmead)); Johnson, 1992: 394 (type information).

Hadrophanurus pennsylvanicus (Ashmead): Kieffer, 1926: 130 (description, generic transfer).

Hadronotus atriscapus Gahan, 1927: 37 (original description. Synonymized with Hadronotus ajax Girault by Mineo (1980a), with Telenomus pennsylvanicus Ashmead, by Masner (1983)); Mineo, 1980a: 189 (junior synonym of Hadronotus ajax Girault); Masner, 1983: 147 (junior synonym of Gryon pennsylvanicum (Ashmead)); Johnson, 1992: 394 (type information).

Gryon pennsylvanicus (Ashmead): Masner, 1961: 162 (description, generic transfer); Subba Rao & Chacko, 1962: 480 (keyed).

Gryon ajax (Girault): Muesebeck & Masner, 1967: 299 (generic transfer); Masner & Muesebeck, 1968: 34 (lectotype designation); Mineo, 1980a: 189 (synonymy).

Gryon atriscapus (Gahan): Muesebeck & Masner, 1967: 299 (generic transfer); Masner & Muesebeck, 1968: 34 (type information).

Gryon pennsylvanicum (Ashmead): Masner, 1983: 134, 146 (description, synonymy, emendation, keyed); Mineo & Caleca, 1987a: 33 (description); Johnson, 1992: 394 (cataloged, type information); Kononova & Kozlov, 2008: 331, 419 (description, keyed).