Trapdoor spider

Scientific Name: Ummidia spp.

Order & Family: Araneae, Halonoproctidae

Size: 10 to 30 mm in body length, depending on the species and sex.

Trapdoor spider

Natural Habitat

Typically found in burrows within loose soil, gardens, and woodland floors, often hidden by a camouflaged lid composed of soil and silk.

Diet & Feeding

Carnivorous; primarily feeds on insects and other small invertebrates that wander near the burrow entrance.

Behavior Patterns

Nocturnal ambush predators that live most of their lives in silk-lined underground burrows; males are often seen wandering in the open during mating season while females remain in their burrows.

Risks & Benefits

Generally harmless to humans; while they can bite if provoked, their venom is not considered medically significant. Benefit the ecosystem by controlling insect populations.

Identified on: 6/12/2026