Tektite

This is a spider-looking creature that hops around in quite a few Zelda games:

-the Legend of Zelda -the Adventure of Link -A Link to the Past -Link's Awakening -Ocarina of Time -Majora's Mask -Oracle of Seasons -Oracle of Ages -Four Swords

The Tektite comes in three forms:

-Brown/Lan) Tektite -Blue Tektite -Red Tektite

There's some more information on the last two in this encyclopedia, just perform a search on the names. The different forms do not appear in every Zelda game. The Tektite attacks Link by jumping on him. The Tektite is quite weak, and doesn't hurt Link badly.