Uloborus(?) spider guarding a string of egg cases. Spiderlings were present at the far end -- see adjacent shot.
Uloboridae, the cribellate orb weavers or hackled orb weavers, is a family of non-venomous spiders. Their lack of poison glands is a secondarily evolved trait. Instead, they kill their prey by crushing with over 140 metres of thread.
