Synistovalgus convexicollis is a species of beetle of the family Scarabaeidae. It is found in Ivory Coast and Togo.
Description Adults reach a length of about . They are similar to Synistovalgus minutus, but may be distinguished by the larger tomentose patch on the elytra, which gradually widens outwards and by the flat, granular area, bordered by a dense fringe of scales in the middle of the last sternite in males.
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