Lilith is the name given to what realistic practical theologians now realise must be the rival mtDNA and X-chromosome strings to חוה's. She is symbolically associated with http://en.wikipedia.org/wiki/Python_(mythology) and Yggdrasil, the world tree of knowledge of good and evil. She was a tree spirit created at the same time as G-d brought fourth the trees before G-d said it was not right for Adam to be alone. Various non-Hebrew mythologies around the world remember Mashya and Mashyana or Ask and Embla the first earthlings of the Golden age as "wood people". Hadam & Eishah were warned not to approach her family tree. Cain's Y-Haplogroup A was the first to become embedded within Lilith's tribe.
see also האדם