Multiattack. The ettercap makes two attacks: one with its bite and one with its claws.

Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., one creature. Hit: 6 (1d8 + 2) piercing damage plus 4 (1d8) poison damage. The target must succeed on a DC 11 Constitution saving throw or be poisoned for 1 minute. The creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Claws. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 7 (2d4 + 2) slashing damage.

Web (Recharge 5-6). Ranged Weapon Attack: +4 to hit, range 30/60 ft., one Large or smaller creature. Hit: The creature is restrained by webbing. As an action, the restrained creature can make a DC 11 Strength check, escaping from the webbing on a success. The effect ends if the webbing is destroyed. The webbing has AC 10, 5 hit points, vulnerability to fire damage and immunity to bludgeoning, poison, and psychic damage.

Variant: Web Garrote. Melee Weapon Attack: +4 to hit, reach 5 ft., one Medium or Small creature against which the ettercap has advantage on the attack roll. Hit: 4 (1d4 + 2) bludgeoning damage, and the target is grappled (escape DC 12). Until this grapple ends, the target can't breathe, and the ettercap has advantage on attack rolls against it.