Cicada Killer Wasps - Facts, Nest & Habitat Information (original) (raw)
Cicada Killer Wasps (Sphecius Speciosus) are ‘Solitary Wasps’.
Cicada killers wasps are large (one and a half inch or longer) wasps with dark brown bodies and black abdomens with yellow markings. Cicada killer wasps are usually found in the Rocky Mountains of the US. Cicada killer wasps are ground nesters which prefer sandy or other well-drained soils where the queens dig tunnel-like chambers.
The adults are active in the summer, usually around mid-July. They are frequently seen flying about in the nesting areas.
Cicada Killer Wasp Lifecycle
The adult wasps feed on flower nectar however, the larva and immature wasps feed on other Cicadas.
The queens search for Cicadas to provision their nests (hence the name).
Each chamber in the nest (often as many as 16) is supplied with a paralyzed Cicada wasp and a wasp egg. When the larvae hatches it feeds on the Cicada wasp. Later the larvae pupates and the wasp hibernates in the nest as an immature adult.
Cicada Killer Wasp and Humans
Female Cicada killer wasps are not aggressive and rarely sting unless handled roughly, disturbed, or caught in clothing, etc. Males aggressively defend their perching areas on nesting sites against rival males but they have no sting. Although they appear to attack anything which moves near their territories, male cicada killers are actually investigating anything which might be a female cicada killer ready to mate.
Such close inspection appears to many people to be an attack, but the wasps rarely sting, bite, or even land on people. If handled roughly females will sting, males will jab with a sharp spine on the tip of their abdomen, and both sexes are well equipped to bite with their large jaws, however they are non-aggressive towards humans and fly away when swatted at, instead of attacking.
Cicada killer wasps exert a natural control on cicada populations and therefore directly benefit the deciduous trees on which cicadas feed.
Cicada Killer Wasp Hunt
Watching a female Cicada Killer Wasp hunt is one of nature’s more impressive spectacles. She locates a cicada, typically high up in the tree canopy, and stings it with surgical precision to deliver a paralyzing venom. The cicada is not killed outright but rendered completely immobile, preserved in a kind of suspended state as living food for the larvae to come.
What makes this particularly remarkable is what happens next. The wasp must then transport her prey, which can be two or three times her own body weight, back to the burrow. She does this by climbing a tree and gliding downward with the cicada held beneath her, making repeated short flights until she reaches her destination. It is a feat of both strength and ingenuity that would be impressive in any creature, let alone one that fits in the palm of your hand.
Identifying a Cicada Killer Nest
A Cicada Killer nest is not difficult to spot once you know what to look for. The entrance is typically a U-shaped mound of excavated soil, roughly the diameter of a large coin, often appearing in lawns, garden beds, or along pathways where the soil drains well. The tunnels themselves can extend up to two feet in depth, with individual chambers branching off to house each paralyzed cicada and its accompanying egg.
The excavated soil piled at the entrance can sometimes alarm homeowners, but the activity is temporary. By late summer, the nesting season draws to a close and the mounds are quickly reclaimed by grass and weather. The wasps will often return to the same general area the following year, drawn back by some instinct for familiarity that scientists are still working to fully understand.
Living Alongside Cicada Killers
For most people, the best approach to Cicada Killer Wasps is simply to leave them to it. They are temporary summer visitors, their nesting season brief and their temperament calm. Treating the nesting area with unnecessary pesticides not only disrupts a largely harmless creature but removes a genuinely useful one.
If a nest is positioned somewhere that genuinely causes concern, such as a children’s play area or a high-traffic path, it is worth consulting a pest management professional who can advise on the least disruptive course of action. More often than not, however, a little patience is all that is needed. By August or September, the wasps will have completed their work and life will return to normal, leaving behind the next generation quietly waiting underground, ready to emerge the following summer and begin the whole extraordinary cycle again.
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What is a Cicada Killer Wasps?
Cicada Killer Wasps (Sphecius Speciosus) are ‘Solitary Wasps’. Cicada killers wasps are large (one and a half inch or longer) wasps with dark brown bodies and black abdomens with yellow markings.
What do Cicada Killer Waspss eat?
Cicada Killer Wasp LifecyclennnnnnnnThe adult wasps feed on flower nectar however, the larva and immature wasps feed on other Cicadas.
Where do Cicada Killer Waspss live?
Cicada killer wasps are usually found in the Rocky Mountains of the US.
Sources & References
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APA
Joanne Spencer (2026, April 15). Cicada Killer Wasps. Animal Corner. Retrieved 2026, May 17, from https://animalcorner.org/animals/cicada-killer-wasps/
MLA
Joanne Spencer. "Cicada Killer Wasps." Animal Corner, 2026, April 15, https://animalcorner.org/animals/cicada-killer-wasps/.
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Joanne Spencer is the founder and lead writer at Animal Corner, where she has been researching and writing about wildlife since 2005. With over 19 years of experience in animal behavior, ecology, and conservation, Joanne has authored hundreds of species profiles and educational guides covering mammals, birds, reptiles, amphibians, and marine life. Her work draws on field observations, peer-reviewed research, and partnerships with conservation organizations to deliver accurate, accessible animal information for students, educators, and wildlife enthusiasts worldwide.