Cicada Killer Wasps
Sphecius speciosus
Startlingly large solitary wasps that dig burrows in bare, sandy soil and lawns — alarming to look at, but the hovering males can’t sting and the females almost never do.
How to identify them
Cicada killers are among the largest wasps in Florida — up to nearly two inches — black with yellow markings and amber wings. Their size makes them frightening, but their behavior is telling: males patrol and hover around burrows and territories, while females fly low over the ground hunting cicadas. The clearest sign is a burrow: a finger-sized hole with a fan of excavated soil, often in bare, sandy, sunny spots.
Behavior and biology in South Florida
Cicada killers are solitary. Each female digs her own burrow in loose, well-drained soil — lawns with thin turf, flower beds, slopes, sidewalk edges, and sandy patches — then hunts cicadas, paralyzes them, and stocks the burrow as food for her larvae.
Despite their intimidating size and the males’ habit of dive-bombing anything that moves through their territory, males have no stinger at all, and females are docile, using their sting to subdue cicadas rather than to defend. Stings to people are very rare and usually only occur if a female is grabbed or stepped on barefoot.
Signs of an infestation
- Large wasps hovering low over the lawn or patrolling a sunny area
- Finger-sized burrow holes with mounded or fan-shaped soil
- Activity concentrated in thin-turf, sandy, or bare sunny spots
- Repeated burrows in the same beds or lawn edges each summer
Why they are a problem
Cicada killers pose little sting risk, so they are mainly a nuisance of appearance and lawn cosmetics: their size frightens people, and their burrowing leaves scattered soil mounds and can worsen thin, bare turf. Large numbers in a play area or garden are unsettling even though the risk is low.
How Bugsy’s treats cicada killer wasps
Because the issue is usually cosmetic and tied to soil conditions, control combines targeted treatment of active burrows with fixing what attracts them — thin, bare, sandy turf. Our technicians treat burrows where numbers or location warrant it and advise on the lawn conditions that make an area appealing to nesting females.
Preventing cicada killer wasps
- Thicken thin or bare turf — dense grass discourages burrowing
- Mulch or plant bare, sandy patches they favor
- Water and maintain the lawn to reduce dry, loose soil
- Address burrows in play areas even though the sting risk is low
- Avoid swatting hovering males — they cannot sting
At a glance
SolitaryGround burrowsDocile despite sizePreys on cicadas
Quick facts
Giant wasps digging holes in your lawn?
Cicada killers look scary but rarely sting. Get a free inspection and a plan for the burrows and turf.
Educational information for South Florida homeowners. Identification and treatment are confirmed by a licensed Bugsy’s technician on site.