Physocephala halterata, Brunetti, 1925

Key 5 – Identification of the Physocephala halterata View in CoL species-group

1. Frons orange-brown, lacking any distinct blackish marking ( Fig. 68 View Figs 67–70 ); gena and facial groove orange to black ( Fig. 67 View Figs 67–70 ); at least postpronotum orange-brown; femora orange-brown .... P. halterata Brunetti, 1925 View in CoL

– Frons with obvious blackish marking, or completely black (e.g. Fig. 66 View Fig ); gena and facial groove more or less black (e.g. Fig. 66 View Fig ); thorax including postpronotum black to dark brown; femora black .. 2

2. Frons almost completely black ( Fig. 66 View Fig ); gena brown to black ......................... P. congoensis Kröber, 1936

240 Jens-Hermann Stuke & David K. Clements

– Frons black in basal half, and with a black medial line reaching the lunule; gena yellow, with small brown markings......... P. acroschista (Speiser, 1911)