Sicariidae

The Brown Recluse

Loxosceles reclusa

Dangerous
All species
Brown Recluse (Loxosceles reclusa)

Photo: Chrissy McClarren and Andy Reago · CC0 · Wikimedia Commons

Family

Sicariidae

Size

Body 6–11 mm

Region

Central & southern United States

Habitat

Closets, attics, cardboard boxes and rarely disturbed storage.

Overview

A shy, reclusive hunter recognised by the dark violin shape on its back. Its cytotoxic venom can cause slow-healing wounds.

How to identify it

  • Violin-shaped marking pointing toward the abdomen
  • Six eyes arranged in three pairs (most spiders have eight)
  • Uniform tan to brown colour with no leg banding
  • Smooth legs, no spines

Standout fact

Unlike most spiders, the brown recluse has six eyes in three pairs — a key AI identification signal.