Digging cicada killer wasps are large solitary wasps known for hunting cicadas and provisioning underground nests with paralyzed prey. Despite their intimidating size, these insects are generally not aggressive toward humans and play an important ecological role in controlling cicada populations.
Quick Facts
- Scientific Name: Sphecius speciosus
- Family: Crabronidae
- Habitat: Sandy soil, lawns, gardens, and open landscapes
- Diet: Adult wasps feed on nectar; larvae feed on cicadas
- Status: Beneficial predator
Identification
Cicada killer wasps are among the largest wasps in North America, often reaching 1.5 to 2 inches in length. They have reddish-brown heads and thoraxes with black abdomens marked by yellow bands.
Although they resemble large wasps, they rarely sting unless handled or threatened.
Distribution
Cicada killer wasps are found across most of the United States wherever suitable soil conditions allow them to dig burrows.
Life Cycle
Females dig burrows in sandy or loose soil. After capturing and paralyzing cicadas, they place them inside underground chambers and lay eggs on them. The larvae feed on the cicadas before pupating and emerging as adults the following year.
Pest Status
While their burrowing activity may disturb lawns or garden beds, cicada killer wasps are considered beneficial insects because they help control cicada populations.
Prevention
- Reduce exposed sandy soil areas
- Maintain dense turf in lawns
- Avoid disturbing nesting sites when possible
Control
Control is rarely necessary. Encouraging natural conditions that discourage nesting is usually sufficient.