What's doing this?

I can't see and bugs on the leafs but I'm sure it's a bug problem any ideas?
 

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I have both. I found a few different kinds bud they are outdoor plants. Don't see any spider mites or thrips. I know they tend to leave black spots like this.
 
the black spots look like bug shit take a damp cloth and see if you can wipe them off.the white spots look like mite damage. time to spray.
 
Yea for sure it's bug shit I just can't see any of the usual bugs that would be there. I sprayed them today with some stuff I hope it helps.
 
thrips will move around if yu bump the plant and could fall off so just watch the plant without shaking or bumping it.
 
definitely bug poop i would get a magnifying glass and try checking under the leaves

edit: seen that was posted by someone else
 
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