Black spots on leaves???

Anyone know what this is? I found it on a couple of leaves... looked a it under a loupe and doesn't appear to be bugs and can't find a deficiency that matches. Never seen this one before.

Plant is in wk 5 of flower & leaf was located on a cola.

any bugs about? they sorta look like sites where a bug has sucked, but dark. creepy. black could mean mold, though too. humidity, ventilation, etc?

Humidity, ventilation, temp is all good... doesn't look like bugs.


under magnification the leaf just looks discolored

aliens......