key to African species of Piezosternum

This key derives from the one given by Schouteden, 1905.

1
Apex of scutellum grooved (fig 2 ,3), median carina not reaching apex. Pronotum not projected backwards 2

Apex of scutellum not grooved (fig 1), median carina reaching apex. Pronotum projected backwards 3
2 Apical external angle of corium truncated, apical suture at right or nearly right angle with costal margin (fig2). Abdomen dorsum metallic green or blue. Fourth antennomere completely black P. fallax Breddin

Apical external angle of corium obliquely truncated, apical suture forming an acute or subacute angle with costal margin (fig 3) (but much less acute than in P. calidum). Rear part of abdomen dorsum red or testaceous. Apex of fourth antennomere of light hue P. rubens Distant
3 Posterior margin of pygophore broadly rounded (fig 4) P. calidum Fabricius

Posterior margin of pygophore more angulous (fig 5) P. breddini Schouteden
 



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