So, that would be, no, not a problem? The reason I ask is because it's an indoors grow. There really shouldnt be any critters in there at all. The ladybugs just popped up when it got warmer in the basement.
I keep lady bugs in my tent. I've never had any pest problems but they seem to love my house in the fall.. so when we get warm spells during winter and they come out, I give my kids a plastic container and have them round up the lady bugs. It keep the kids occupied lol.
The only time I've ever noticed a smell is when we got our first frost and they all came inside of our house. The kids gathered up about a hundred of them or so.
my wife doesnt notice the smel either. My dog points them out with her sniffer, ceiling, bed, couch, window --we smell them year round if they're here.