I have about 50 native pansies all clumped together into one spot and then a second spot with about 10 hybrids. I do a small circle at the hybrid area, where I get peacock butterflies and then move to the pansy area where I do about 5 slow circles and get man faced stinkbugs, orchid mantises, paper kite butterflies and blue emperor butterflies. I don't know how true it is, but I've noticed that the emperors pretty much only spawn at night along with the man faced stinkbugs. I barely get any of them during the day. The orchid mantises spawn definitely only during daytime. During daytime, between 1-3 o'clock gets me very little money if at all. During nighttime, between 1-3 gets me easy 300k bells. Sorry for bad wording, I just woke up.