P. eximium group (subgenus Exanthidium)

2 Apical margin of T5 with small median protrusion; apical margin of scutellum and axillae widely rounded in dorsal view.......................................................................................... P. wahrmanicum

– Apical margin of T5 straight without median protrusion; scutellum angular posterolaterally in dorsal view.............. 3

3 Apical margin of T6 with small median protrusion, deeply V-shaped incised; posterior margin of axilla and posterolateral margin of scutellum forming straight line; posterior margin of scutellum rounded in dorsal view...................... 4

– Apical margin of T6 with small ventrad protrusion; posterior margin of axilla and posterolateral margin of scutellum not forming straight line; posterior margin of scutellum straight in dorsal view............................... P. eximium

4 Scutum black, terga black with pale yellow bands.................................................... P. enslini

– Scutum yellow and reddish-brown with some black remnants; terga yellow.............................. P. guichardi

5 Omaulus lamellate almost to lower end [ P. ochrognathum group]............................................... 6

– Omaulus angulate or rounded........................................................................... 8