Spider

Spiders (order Araneae) are air-breathing arthropods that have eight legs and chelicerae with fangs that inject venom. They are the largest order of arachnids and rank seventh in total species diversity among all other orders of organisms.

Mainstream Smurfs Media
Spiders have appeared in many episodes of the cartoon show as well as the comic book story "The Haunted Castle", where Smurfette and a group of Smurfs go on a journey to find the Black Rose in order to cure Papa Smurf.

Hero: The Guardian Smurf stories
Though spiders have yet to appear in the series so far, they do exist as they dwell in the dark basements of abandoned castles and buildings. They also appear as enemies in the Survival Imaginarium game setting, mostly on the levels based on an island in the middle of the ocean and the swampy regions of Pussywillow Hollow.