Thomisus onustus, crab spider
In males the basic colour of the prosoma [the head and the thorax fused together] varies from yellow brown to dark brown, the opisthosoma [abdomen] may be yellow and green or brown. Also females are very variable in colour, their basic colour can be white, yellow or pink.
As a matter of fact these crab-spiders hide themselves adapting the colour of their body to the colour of the flowers on which they are waiting for preys, a behaviour that conceals them from predators and from the pollinating preys.
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