- Color: brown or flesh colored to dark brown with a violin-shaped dark mark that begins right behind the eyes; thus, they are called “fiddle backs” or “violin spiders.”
- Size: 1/4 to 1/2 inch.
- Six eyes arranged in a semicircle on the top front of the first body segment.
Habits of Brown Recluse Spiders:
- Females produce from one to five egg sacs, each containing 40 to 50 eggs.
- Developmental time (egg to adult): approximately 336 days.
- Life span of females: averages 628 days.
- They construct a nondescript, irregular web used almost exclusively as a retreat.
- The nest typically is built in secluded locations, e.g., among old papers, in seldom-used clothes and shoes, and in attics.
- Outdoors, they typically are found under rocks and in barns and sheds.
- When hunting, they usually retreat to their nests whenever they are disturbed.
Damage Caused by Brown Recluse Spiders:
- Brown recluse spiders inflict a painful bite that may develop into an ugly, slow-healing ulcer.
- Dark protected areas which attract insect prey.
- Nondescript webbing.
How to Control and Kill Brown Recluse Spiders:
- Clutter and debris inside structures and scrap lumber, woodpiles, rocks and other protective outdoor materials should be removed.
- A vacuum cleaner should be used to remove spiders, webs, and egg sacs and the bag immediately sealed and discarded.
- Outdoor lighting that attracts insects to the structure should be changed.