I've found several of these little critters all over my house - in the kitchen, in the bathroom, on random walls and on the rugs. They are very sluggish and tend to just sit there. They are black with a white or brownish band and are about a millimeter long. My home is located in a development which is surrounded by woods and the dirt the area is mostly clay if that helps. I first started seeing them this winter. It was very cold and very snowy. I saw them again today it had rained both yesterday and this evening.