1. House Spider

2. Hobo Spider

3. Grass Spider

Identification

• adult bodies up to 3/8 inch long (longer including legs)
• robust, fast moving spiders
• many funnelweb spiders look similar; verify your spider identification with Utah State University Extension

Nesting Habits

• outside in grass, gardens, ornamental plants and trees, along foundations, log piles, under rocks and lawn ornaments, etc.
• often found in tubs and sinks, or running along the floor indoors

Diet

• insects

Significance

• hobo spider: evidence suggests that hobo spiders do not cause necrotic lesions in humans
• very common indoors between August and October
• spiders should be considered beneficial

IPM Recommendations

• Minimize nesting habitat around property (rocks, logs, etc.).
• Seal exterior cracks and crevices.
• Install tight-fitting door sweeps at the base of all exterior doors.
• Vacuum individuals that enter buildings.
• Step on or smash individual spiders that enter.
• Catch and release (with a glass jar) spiders found indoors.
• Change exterior lighting to sodium vapor bulbs.
• Use pest monitors to capture invading spiders, especially between August and October.