Cylindera ( Ifasina )

Key to the West African species of Cylindera ( Ifasina) View in CoL

Taking into account the identification key for the western subgenus Ifasina African species given by Serrano (2007), we present an updated key including the new species:

1. Elytral markings without humeral spot; apical lunule reduced to a spot near the outer apical angle....... C. genofiae Rivalier View in CoL

- Elytral markings with a humeral spot, apical lunule near the apical margin........................................ 2

2. The transversal middle band slightly directed anteriad......................................................... 3

- The transversal middle band perpendicular to the suture or slightly directed posteriad.............................. 4

3. Pronotum slightly rectangular sub-parallel withdrawn at the anterior angles; apex of median lobe slightly bent downward (lat- eral view) and narrowly triangular (ventral view)..................................... C. lutaria (Guérin-Méneville) View in CoL

- Pronotum quadrangular or even slightly trapezoidal; apex of median lobe slightly bent upward (lateral view) and largely trian- gular (ventral view).................................................................... .. C. agualusai View in CoL sp. n.

4. Elytral markings with two connected discal anterior dots, apical lunule reaching the suture near the apical tooth; pronotum withdrawn at the anterior and posterior angles, more or less rounded at sides.................. .. C. octoguttata (Fabricius) View in CoL

- Elytral markings with one discal anterior dot, apical lunule not reaching the suture................................. 5

5. Elytra domed in the middle region of the second third; proepisterna pilose only at the inner region; mandibles extensively more darkened and metallic................................................................. C. decellei Basilewsky View in CoL

- Elytra not domed; proepisterna pilose at the entire surface; mandibles almost entirely testaceous, darkened at the apex of teeth.................................................................................. C. gulbenkiana Serrano View in CoL