Don't even listen to that. If you are inside they will in no time reproduce into millions. Kill them, Kill them all. I have these little black bugs that will not die. I believe they are thrips. I have thrown everything at them except fire and they still come back. I waited a few days to do something and they reproduced into 10,000 in no time. Only thing killing them are bombs. I am doing a soil drench with spinosad and have used it already, like 8 times. Along with nematodes, gnatral, pure spray and another soil drench product with rosemary oil ect. They are a big deal. Any bug except predator bugs are a big deal.