Spotting

Description:

Hundreds of tiny yellow spiderlings! The first three photos are from yesterday evening, and the other two (with them clumped together) are from this morning. They seem to have come from a nest in a leaf on the ground. They have shed at least once, since I found a bunch of tiny exoskeletons near the leaf. They stay together in a web they've spun.

Habitat:

Suburban yard

Notes:

Could someone please tell me what species they are?