Harvester

"When you find yourself looking at a cave full of red dots"

"It's not a cave. It's a Harvester getting ready to 'collect' you."

Description
The Harvester is a giant spider Grimm. With a spherical body supported by its long, jointed legs, the spider is able to crawl up and over many places. It can use its legs to spear into its victims and shoot out webs from its funnel-shaped mouth located further down its mask.

Although it uses eight legs for travel, the Harvester has an extra eight legs that it can shoot from its body. If cut, any leg can regenerate back into full form almost immediately.

It's one weakness is the joints on its legs and when cut, the regeneration time goes a lot slower.

Reference

 * The Harvester is the nickname given to Daddy Longlegs, which is the inspiration for this Grimm.