Eastern cicada killers, also known as Sphecius speciosus, are a type of wasp that plays a crucial role in the ecosystem.
They are known for their distinctive black and yellow stripes and their impressive size, with some females reaching lengths of up to 2.5 inches.
These wasps are predators that feed on cicadas, which are a common food source for many animals.
Eastern cicada killers are solitary wasps, meaning they don't live in colonies like some other types of wasps.
They are generally non-aggressive and won't attack unless they feel threatened or if their nest is disturbed.
Their nests are usually underground and can contain up to 50 cells, each containing a single cicada killer larva.
Related reading: Cicada Hawk
Cicada Killers' Natural Enemies
Cicada killers have a few natural enemies that try to prey on them. Predators like birds and other insects see them as a tasty meal.
One way cicada killers defend themselves is by making a loud, buzzing noise and displaying striking colors of black and yellow. This is to deter predators from attacking them.
The female cicada killer will only use her stinger to defend herself if she's in immediate danger.
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Cicada Killers
Cicada killers are beneficial wasps that hunt cicadas in the genus Tibicen, which feed on deciduous trees and damage tree branches by laying eggs in them.
These wasps are impressive, measuring up to 1.5 inches in length, with a black abdomen and rust-colored head and thorax.
Female cicada killers are busy digging long burrows up to 40 inches in length, where they lay up to 15 eggs, each in its own separate chamber, and drag up to three paralyzed cicadas for the young larvae to feed on.
During their lifetime, a female cicada killer will excavate up to four burrows and gather at least 100 cicadas during the summer, but they are only active for about three weeks out of the year.
Additional reading: Eastern Cicada Killer Scientific Name
Cicada Killers' Behavior
Cicada killers are solitary wasps, preferring to live alone rather than in colonies.
They choose well-drained, lighter-textured soils in full sunlight near trees with an abundance of cicadas.
A female cicada killer is busy digging long burrows up to 40 inches in length during the middle of the summer.
In each burrow, she will lay up to 15 eggs, each one in its own separate chamber.
She will also drag up to three paralyzed cicadas into the chamber for her young larvae to feed on.
During her lifetime, a female cicada killer will excavate up to four burrows and gather at least 100 cicadas during the summer.
The female cicada killer is only active for about three weeks out of the year, digging burrows and laying eggs.
Cicadas: A Comprehensive Guide
Cicadas are often misunderstood, but they're actually pretty fascinating creatures.
Cicada killer colonies can be found in a variety of locations, including areas with cicadas.
Experts like Dr. Joseph Coelho and Charles (Chuck) W. Holliday have studied cicada killers, but they're still learning about the interactions between cicadas and other insects.
Female velvet ants have been spotted digging in cicada killer nesting areas, but their purpose and behavior are still unclear.
Cicada killers are known to build complex underground burrows, but it's not known what happens when female velvet ants dig down into these burrows.
Conservation and Coexistence
The eastern cicada killer wasp is a beneficial insect that helps control cicada populations, which can prevent trees from being damaged by cicada eggs.
These wasps are also a food source for other animals, such as birds, spiders, and other wasps.
They are a key part of the ecosystem and play a vital role in maintaining the balance of nature.
Some species of birds, like the American robin, feed on cicada killers and their eggs.
By understanding the importance of these wasps, we can work towards coexisting with them and preserving their populations.
Eastern cicada killers are generally non-aggressive and will only sting humans in self-defense.
Their nests can be safely left alone, and it's best to let them be if you encounter one.
Frequently Asked Questions
Are Eastern Cicada killers aggressive?
Eastern Cicada killers are generally non-aggressive and only sting in self-defense, while males have no stinger at all. They're best left alone to feed on cicadas, but it's worth knowing the difference from more aggressive species like yellowjackets and hornets.
What attracts cicada killers to your yard?
Cicada killers are drawn to sparse lawns and bare, dry soil, where they can easily dig nests. Look for them in areas like sidewalks, lawns, flower beds, and gardens.
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