The Tetragnathidae and Argiopidae, with which this paper deals, are two large families of web-weaving spiders under Arachnomorphae. In these families we come across several interesting and curious genera which presents great variation in size, shape coloration and habits. Some species are so small that without a lens nothing made of them. On the other hand there is a well known gaint spider (Nephila maculata) whose body length measures more than two inches. Most of the members weave plain, circular snares suspended vertically, obliquely, or horizontally among plants and shrubs or between branches of trees.