Iwan, D. 1998. Revision of the generic group of the trigonopoid Platynotina (Coleoptera: Tenebrionidae: Platynotini) from South Africa Part 3 Genera Lawrenceus gen nov and Platycharlesus gen nov. Annales Zoologici 48:305-311.
Iwan, D. 1998. Revision of the generic group of the trigonopoid Platynotina (Coleoptera: Tenebrionidae: Platynotini) from South Africa Part 3 Genera Lawrenceus gen nov and Platycharlesus gen nov. Annales Zoologici 48:305-311.