Black Widow Spider

Name: Bowling Green Pest Control
Address: Bowling Green, KY, US
Telephone: (270) 510-0473
Price range: $
Rating: 5.0

(Latrodectus mactans)

A venomous spider recognized by its shiny black body and distinctive red hourglass marking.

Overview

Black widow spiders are the most venomous spider found in Kentucky. Their venom is a neurotoxin that can cause severe pain, muscle cramps, and in rare cases, serious medical complications. Despite their fearsome reputation, bites are uncommon because black widows are shy and prefer to retreat rather than bite. In Bowling Green, they are typically found in undisturbed outdoor areas like woodpiles, garages, and meter boxes. They build strong, irregular webs in dark, sheltered locations.

Appearance

Female black widows are the ones to watch for — they have a shiny jet-black body about 1/2 inch long with a distinctive bright red hourglass marking on the underside of their round abdomen. Some females may also have red dots or irregular markings on the upper abdomen. Males are much smaller, brown with lighter markings, and are not considered dangerous. Immature females may show red, orange, or white markings with a banded pattern.

Habitat

Black widows prefer dark, sheltered, undisturbed locations. Common outdoor sites include woodpiles, stone walls, under decks, in meter boxes, under outdoor furniture, and in seldom-used sheds. Indoors, they can be found in garages, crawl spaces, and basements — usually at ground level in cluttered areas. Their webs are strong, three-dimensional, and irregularly shaped with no discernible pattern.

Diet

Black widows build sticky, tangled webs to catch prey. They eat a variety of insects including flies, mosquitoes, beetles, caterpillars, and other spiders. After ensnaring prey, they wrap it in silk and inject digestive enzymes before consuming the liquefied remains.

Lifecycle

Females produce round, tan or gray egg sacs, each containing 250 to 750 eggs. Spiderlings emerge after about 2 to 4 weeks and go through several molts. Females can live 1 to 3 years. Contrary to popular belief, females do not always kill and eat the male after mating.

Signs of Infestation

!Strong, irregular, three-dimensional webs in dark, sheltered areas close to the ground
!Shiny black spiders with a round abdomen in woodpiles, garages, or meter boxes
!Round, tan egg sacs within the web
!Webs that feel noticeably strong and sticky to the touch

Prevention Tips

✓Wear gloves when moving woodpiles, reaching into meter boxes, or cleaning garages and sheds
✓Shake out shoes, gloves, and clothing that have been stored in garages or basements
✓Remove debris, rocks, and woodpiles from near the house
✓Install weather stripping and seal gaps in garage doors
✓Use caution when reaching into dark, undisturbed areas
✓Keep outdoor areas well-lit or use yellow-tinted bulbs that attract fewer insects

Professional Treatment

Professional black widow treatment includes web removal, targeted residual treatments in and around harborage areas, dust applications in cracks, crevices, and voids, and reducing the insect prey population that supports them. Regular perimeter treatments during the warmer months are effective for keeping populations low. If a black widow is found indoors, professional removal is recommended.

Did You Know?

•Black widow venom is 15 times stronger than rattlesnake venom by volume.
•The female's 'hourglass' marking serves as a warning signal to potential predators.
•Males are harmless to humans — only females have medically significant bites.
•Despite their reputation, fatalities from black widow bites are extremely rare with modern medical treatment.

Quick Facts

Size

1/2 inch body

Color

Shiny black with red hourglass marking

Legs

Shape

Round, glossy abdomen

Also Known As

Southern black widow

Danger Level

High