| --- | move to "Alternate characters" for matrix block comprising all tribes |
| fastigium width (measured at its base) |
| narrow, usually narrower than first antennal segment - exceptions: Sphyrometopa and Eppia (Central America) and Gonatacanthus (New Guinea) | much broader than first antennal article |
| ventral tooth on fastigium |
| absent | present or absent |
| geographic distribution |
| tropics and subtropics | worldwide |