FIGURE 21. A in Revision of Plumarius Philippi 1873 (Hymenoptera: Chrysidoidea, Plumariidae) from Argentina north of Patagonia, with description of eighteen new species

FIGURE 21. A, Plumarius ocellatus, Head, frontal view. B, P. stangei, Head, ventral view. C, P. hirticornis, Head, lateral view. D; P. gradifrons, setose area on metacoxa, ventral view. E, P. gradifrons, Head, lateral view. F, P. spiniferus, Head, lateral view. Scale bars = 0.5 mm.