Ankheg
Ankhegs are bugs who burrow around underground, and jump out to attack adventurers... so far, so bulette. They've been around since that first edition Monster Manual in 1977. Like cockroaches, they'll probably be around for many more editions after that.
Gallery
-
1e
-
AD&D Monster Card
-
2e
-
-
3e
-
4e
-
5e
-
The Ankheg life cycle.
-
Pathfinder