I have a green house I live in the Pacific Northwest and I have these in it. Some are by themselves and others are clustered in a mass it is freaky I was researching them to see if I should keep them in there or remove them. I am not afraid of them though I don't want them crawling on me. What I have learned is they eat bugs which is not a bad thing so right now I will be keeping them till they really over take the greenhouse.Anything else you can tell me about these do they live long? So you think they are good for my green house or will they eat all the good bugs will they make my strawberries poisious with them crawling all over them there has got to be 300 of them.