gradifrons, Taxa Only, Exact Match: 2 Treatments

Plumarius gradifrons			Diez, Patricia A. & Roig-Alsina, Arturo, 2016, Revision of Plumarius Philippi 1873 (Hymenoptera: Chrysidoidea, Plumariidae) from Argentina north of Patagonia, with description of eighteen new species, Zootaxa 4098 (3), pp. 442-470 : 447	447
Plumarius gradifrons		sp. nov.	Diez, Patricia A., Fidalgo, Patricio & Roig-Alsina, Arturo, 2012, Systematics of the South American genus Plumarius Philippi, 1873, with descriptions of new species (Hymenoptera, Plumariidae), Zoosystema 34 (3), pp. 635-650 : 646-648	646-648