Cicada killers are large wasps known for hunting and capturing cicadas, which they use as food for their young. Despite their intimidating size and loud buzzing, these insects are generally not aggressive toward humans. They are often mistaken for hornets because of their similar appearance, but they belong to a different group of solitary wasps.
Unlike social hornets that live in colonies, cicada killers usually live alone. Each female creates her own burrow in the ground, digging tunnels in sandy or loose soil. Inside these tunnels, she prepares small chambers where she will store food and lay her eggs.
The hunting process is what makes these wasps especially fascinating. A female cicada killer searches for a cicada, stings it to paralyze it, and then drags or flies it back to her burrow. This prey is not eaten immediately; instead, it serves as a fresh food source for the developing larva after the egg hatches.
Male cicada killers behave differently from females. They do not hunt and cannot sting, but they are very territorial. Males often hover around nesting areas, darting toward anything that enters their space, which can make them seem more threatening than they actually are.
Cicada killers are most active during warm months when cicadas are abundant. Their presence often coincides with the loud calls of cicadas, especially in mid to late summer. You may notice small mounds of soil marking the entrances to their burrows in lawns, gardens, or open fields.
Although their size and behavior can be alarming, cicada killers play a useful role in nature. By controlling cicada populations, they help maintain ecological balance. They are a good example of how even intimidating insects contribute to the natural system in quiet but important ways.
Hornets & Wasps that Eat Cicadas
Eastern Cicada Killer (Sphecius speciosus)
The most well-known cicada hunter in North America, the Eastern Cicada Killer is a large, solitary ground-nesting wasp found across the eastern United States.
Females sting and paralyze cicadas before dragging them to underground burrows as food for their larvae. Despite their intimidating size — up to 40mm — they are remarkably docile toward humans.
Western Cicada Killer (Sphecius grandis)
Found across the western United States and into Mexico, the Western Cicada Killer is slightly larger than its eastern cousin and hunts a broader range of cicada species native to arid and semi-arid landscapes.
Females are powerful fliers capable of carrying paralyzed cicadas — sometimes heavier than themselves — back to burrows in dry, sandy soil.
Pacific Cicada Killer (Sphecius convallis)
The Pacific Cicada Killer inhabits the coastal regions of western North America, from British Columbia down through California and into Baja California. It targets cicada species specific to its western range and nests in dry, sun-exposed soils in open areas.
Males are highly territorial around nesting aggregations, engaging in dramatic aerial chases, though they are completely harmless as they lack stingers.
Caribbean Cicada Killer (Sphecius hogardii)
The Caribbean Cicada Killer is found throughout Florida, the Gulf Coast, and across the Caribbean islands. It is a highly effective hunter of the robust cicada species found in tropical and subtropical environments.
Like other members of its genus, it is a solitary ground nester and provisions each brood cell with one or more paralyzed cicadas depending on whether the egg will develop into a male or female offspring.
Cuban Cicada Killer (Sphecius cubensis)
Endemic to Cuba and some surrounding Caribbean islands, the Cuban Cicada Killer is a regional specialist whose biology closely mirrors other Sphecius species. It excavates burrows in soft soils and hunts the cicadas that are abundant in Cuba’s tropical forests and agricultural landscapes.
It remains less studied than its North American relatives due to limited research access, but is recognized as a distinct species within the genus.
South American Cicada Killer (Sphecius spectabilis)
The South American Cicada Killer is found across tropical and subtropical South America, where the diversity of cicada species provides it with an abundant and varied prey base.
It is a large, robust wasp and one of the biggest members of the Sphecius genus. It builds burrows in open, well-drained soils and is frequently encountered in gardens, pastures, and the edges of tropical forests where cicada populations are dense.
Asian Giant Hornet (Vespa mandarinia)
The world’s largest hornet is a ferocious and highly capable cicada predator. While it is better known for its devastating raids on honeybee colonies, the Asian Giant Hornet also actively hunts large cicadas in the forests of East and Southeast Asia, using its powerful mandibles to dismember prey rapidly in mid-air or on tree surfaces.
Cicadas form an important part of its protein diet, which is primarily used to feed the colony’s developing larvae.
Yellow-Legged Hornet (Vespa velutina)
The Yellow-Legged Hornet, native to Southeast Asia and now invasive in Europe, is an opportunistic predator that includes cicadas among its prey when they are seasonally abundant.
It is a fast, agile hunter that can intercept flying insects with impressive precision. While honeybees are its most notorious target, cicadas — particularly smaller species — are well within its hunting capabilities and are taken when encountered during foraging flights.
Lesser Cicada Killer (Sphecius speciosus subsp.)
Several smaller regional populations and subspecies of the broader Sphecius group are referred to as Lesser Cicada Killers. These populations hunt smaller cicada species and typically construct shallower burrows than the large nominate form.
They share the same essential hunting strategy — locating a cicada by sound or movement, stinging it to paralyze it, and transporting it to a pre-dug burrow — but are adapted to the specific cicada fauna of their local environment.
European Hornet (Vespa crabro)
The European Hornet is one of the few true hornets in its range to actively prey on cicadas, particularly in the warmer southern parts of its distribution where Mediterranean cicada species are abundant.
Workers are efficient hunters of large, slow-moving insects and are well capable of subduing and dismembering a cicada for transport back to the nest. The protein-rich prey is macerated and fed to the colony’s larvae, while adult hornets consume the hemolymph for energy.
Oriental Hornet (Vespa orientalis)
The Oriental Hornet, found across the Middle East and Southern Europe, is an active predator of cicadas in regions where both species overlap. It is particularly active during the hottest parts of the day — unusual among hornets — which coincides with peak cicada activity, giving it a natural hunting advantage.
It captures cicadas on tree bark and vegetation, quickly stinging and immobilizing them before returning to the colony with the protein harvest.
Greater Banded Hornet (Vespa tropica)
The Greater Banded Hornet of South and Southeast Asia is a versatile predator that takes cicadas as seasonal prey when they emerge in large numbers. Its powerful mandibles and considerable size make it well-equipped to handle the robust body of a cicada.
Like other hornets, it feeds the protein-rich thorax muscles of its prey to larvae and may consume the energy-rich hemolymph itself during long foraging expeditions.
Sand Hornet / Gorytes species (Gorytes campestris)
Several members of the Gorytes genus — solitary wasps commonly called sand hornets — are specialist hunters of cicada nymphs and other homopteran insects. Gorytes campestris found in Europe targets nymphal bugs closely related to cicadas, paralyzing them and sealing them in underground sand burrows.
Their hunting behavior closely parallels that of true cicada killers, and they represent a parallel evolution of the cicada-hunting lifestyle in a completely different wasp lineage.
Amazonian Cicada Hawk (Stictia signata)
Stictia signata, commonly known as the Amazonian Cicada Hawk, is a large, striking solitary wasp from South America that is closely related to the Horse Guard Wasp and belongs to the same hunting guild as the cicada killers.
It is a specialist predator of cicadas and other large homopterans, which it paralyzes with a precisely delivered sting and hauls to burrows dug in sandy or bare soil. It is a powerful and agile flier and can carry prey larger than itself over considerable distances back to its nest.
Horse Guard Wasp (Stictia carolina)
The Horse Guard Wasp of the eastern and central United States is closely allied with the cicada killers in both behavior and ecology. While it is best known for hunting horse flies and deer flies around livestock, it also takes large cicadas when they are available.
It shares the same ground-nesting strategy as Sphecius species, excavating burrows in dry sandy soil and provisioning them with paralyzed prey for its developing larvae.
Black Giant Ichneumon Wasp (Megarhyssa atrata)
The Black Giant Ichneumon is one of the largest wasps in North America and, while a parasitoid rather than a true hunting wasp, it targets wood-boring beetle and horntail larvae that share habitat with cicada-hunting species.
Some Megarhyssa relatives and associated ichneumonid wasps have been documented parasitizing cicada nymphs underground, making them tangential members of the cicada-hunting community. Their extraordinarily long ovipositors allow them to drill through wood and soil to reach hidden prey with remarkable precision.
Argentine Cicada Killer (Sphecius urnarius)
The Argentine Cicada Killer, Sphecius urnarius, is a South American species within the cicada killer genus and one of the lesser-known members of this predatory group.
Found in the grasslands and open woodlands of Argentina and neighboring countries, it hunts the diverse cicada fauna of the Southern Cone region. Like its relatives, it is a solitary ground nester and provisions its burrow cells with paralyzed cicadas. It is distinguished from other Sphecius species by subtle differences in size, coloration, and the specific cicada species it preferentially targets in its range.
Australian Cicada Killer (Exeirus lateritius)
The Australian Cicada Killer is a large, solitary sphecid wasp native to eastern Australia and one of the most impressive insect hunters on the continent.
Females are powerful enough to sting and carry cicadas considerably larger than themselves, hauling their paralyzed prey up tree trunks and gliding with them to ground-level burrows. They are a familiar and spectacular sight in Australian suburban gardens during summer cicada season.
Mediterranean Cicada Killer (Sphecius haematodes)
Found across the Mediterranean basin including southern Europe, North Africa, and the Middle East, the Mediterranean Cicada Killer is the primary Old World representative of the Sphecius genus.
It is well adapted to the hot, dry summers of its range, which conveniently coincide with peak cicada abundance. It nests in loose, sun-baked soils and is frequently encountered in olive groves, vineyards, and scrubland where cicadas are plentiful.
Four-Spotted Scoliid Wasp (Scolia quadripunctata)
The Four-Spotted Scoliid Wasp is a medium-sized parasitoid wasp found across Europe and Central Asia that, while primarily known for targeting scarab beetle grubs, has been documented hunting and paralyzing cicada nymphs underground.
It locates burrowing prey by detecting vibrations in the soil and delivers a precise, paralyzing sting before laying a single egg on the immobilized host. It is an important and underappreciated regulator of large underground insect populations.
Giant Scoliid Wasp (Megascolia maculata)
The Giant Scoliid Wasp is the largest wasp species in Europe, with females reaching up to 45mm in length. Found across Southern Europe, North Africa, and the Middle East, it is a formidable predator and parasitoid that hunts large underground insects including cicada nymphs encountered in the soil during its burrowing searches.
Its vivid black and yellow-red coloration is a bold warning signal, and its sheer size makes it one of the most startling insects a person can encounter in the Mediterranean region.
Note: True “Cicada Killer” wasps belong to the genus Sphecius and related groups. Several hornet and large wasp species also actively prey on cicadas. The insects above are all known or documented cicada hunters, though not all are technically true hornets.