Found this lady gaurding her nest and at first thought she was a Nursery Web spider but she lacks any markings on her abdomen. Can a kind and knowledgeable Arachnomaniac please tell me what she is? Thanks! .............. PS I think the spider in pics 3 & 4 IS a Nursery Web spider, she does have markings but I may be wrong? If not what is she? Thanks again!