Black Recluse

Black Recluses are Hardmode enemies that spawn in Spider Nests, but can rarely be found in the Cavern layer. It can inflict the Venom debuff and itself is immune to the Poisoned and Venom debuffs.

Trivia
The name "Black Recluse" is a combination of the spider names "black widow" and "brown recluse"; both spiders are commonly known for their venomous capabilities. This is reflected in the monster's appearance and in its drops.