Crypsis:
Crypsis, or avoiding detection by blending into the background, is one of the most common and successful defenses. Classical examples of crypsis include mantids and stick insects in the Mantodea and Phasmatodea, leaf-mimicking moths, and ambush bugs (Phymatidae) that resemble the flowers in which they hide. [Justin O. Schmidt, ScienceDirect]
Noted in “Competition, part II,” Heather Heying, Natural Selections:
Historically, though, male-typical competition is visible, overt, and finite in its nature. Female-typical competition is more cryptic and covert, and has boundaries that are looser. Overt games have clear borders, both in space and time, or at least they’re supposed to. In male-typical competition both the games themselves, and the rules of the games tend to be clear. In female-typical social competition, by contrast, both the game and its rules may be difficult to detect. And this difficulty of detection may precisely, in turn, be part of the game. Crypsis can be a powerful adaptive move—if your competitors can’t see you coming, they may well be less prepared, especially if it’s not even clear that a game is on.
