Genus Spatunomia
Spatunomia was described for two widely separated, large (13-15 mm) species with a dark red metasoma without hairbands.
There is a strong preoccipital carina in the male. The pronotum lacks a carina (except on the pronotal lobe) but extends across in front of, and at the level of, the scutum, so that the scutum does not bend down to the pronotum.
The most remarkable features of the genus are the simple mandibles in the female and the pedunculate last antennal segment in the male, which has a slender base and a broad flattened apical region.
They occur in widely separated areas, in Sudan and southern Africa.
Links:
The Bees of the World. Charles Duncan Michener