A crab spider Tmarus longicaudatus Millot, 1942 hidden among the trees (Araneae, Thomisidae) from South Africa

Tmarus longicaudatus was described by Millot, 1942 from Niger. The species name longicaudatus is derived from Latin, meaning"long-tailed", referring to the distinctive elongated caudal tubercle (tail-like projection) found especially in the female. They were sampled from the umbrella thorn tree Vachellia tortilis (Forssk.) in South Africa and the shape of their abdomen resembles some of the thorns. A good example of masquerade camouflage.