P. ciliata change color to match their pattern generally. On black sand a P. ciliata would likely turn a dark color, very close to black. On white substrates with stalky algae they tend to be white with green stripes etc. etc. The only real abnormality that i've heard of is the yellow coloration which tends to happen in really murky or colorful safe places where the mantis can afford to sexually advertise themselves.
Dan
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This laughter is ill-informed!
"Sanity? What would I do with something as useless as that?"
-Kennpachi
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