Giant Antlion (5e Creature)
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Large beast, unaligned
Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 8 (2d4 + 3) piercing damage, and the target is grappled (escape DC 13). Until the grapple ends, the target is restrained, and the antlion can't bite another target.
Giant antlions are ambush predators that dig conical burrows and wait for prey to fall in. They can go for months without eating, so a giant antlion can remain a threat even if its food supply is cut off for extended periods. After about a year of growth, a giant antlion creates a cocoon and becomes an adult giant antlion lacewing.