uloborid spider

Family Uloboridae About 260 species worldwide. Cribellum; lack poison glands; 3 tarsal claws; eyes in 3 rows; anal tubercle large; make orb webs; Hyptiotes are called triangle spiders. Family Scytodidae (spitting spiders) 160 species mostly in tropical and subtropical regions. 6 eyes arranged in 3

Spiders of the family Uloboridae build a web of woolly (cribellate) ensnaring silk. One group within this family (genus Hyptiotes) weaves only a partial orb. The spider, attached by a thread to vegetation, holds one thread from the tip of the hub until an insect brushes the web. The…

…are absent in the family Uloboridae. The glands are located either in the chelicerae or under the carapace. The venom ducts extend through the chelicerae and open near the tips of the fangs. Venom glands probably originated as accessory digestive glands whose secretions aided in the external digestion of prey.…