Pneuminion

Key to Species of Pneuminion

1 Pronotal foveae deeply impressed and wide; elytra with saddle, each elytron with five unilinear, subcostate rows of setae (Figs. 11) .................................... impressum n. sp.

­ Pronotal foveae not deeply impressed; elytra not subcostate........................................ 2

2 Elytra with setae of serial punctures and setae of intervals each forming unilinear, uninterrupted lines, about 18 narrowly spaced rows on each elytron ........................... 3

­ Elytral intervals each with unilinear row of setae, setae of series less developed, setae not overlapping, not forming discrete line as on intervals ............................................ 5

3 Elytral setal bases lacking perceptible granules, elytra more shining (Fig. 5)................ .................................................................................................................. tubum n. sp.

­ Elytral setal bases each with a distinct granule on anterior margin .............................. 4

4 Dorsum black, setae more developed, whitish; pronotal foveae rugulose, micropunctulate, and with granules (Fig. 2)........................................................... velamen Perkins

­ Dorsum dark brown or brown, setae less developed, testaceous; pronotal fovea punctate, punctures each divided by a granule, therefore appearing paired (Fig. 3) ............. .............................................................................................................. endroedyi n. sp.

5 Pronotal reliefs with interpunctal surfaces smooth, shining ......................................... 6

­ Frons disc and pronotal reliefs dull............................................................................... 8

6 Size small, ca. 1.30 mm long; interpunctal surfaces of frons disc smooth and shining (Fig. 10).................................................................................................... nanum n. sp.

­ Size larger, ca. 1.50­2.00 mm; frons shining or dull ..................................................... 7

7 Pronotal foveae subrugulose, deeper (Fig. 6)...................................... natalensis n. sp.

­ Pronotal disc more uniformly punctate, foveae punctate, shallower, especially anteromedian fovea (Figs. 1, 9).................................................................... punctatum n. sp.

8 Elytra semisulcate, intervals raised slightly; elytra longer, ca. 3x as long as length of pronotum, ratio as 37/111 (Figs. 7, 8) semisulcatum n. sp.

­ Elytral intervals less raised; pronotal U­shaped fovea deeper; elytra shorter, ratio of lengths of pronotum and elytra as 37/100 (Fig. 4) ...................... balfourbrownei n. sp.