Tarantula hawks, aka – pepsis wasps, are impressive with bright orange wings on a large velvety black body. They feed on nectar from flowers but are most famous for their battles with tarantulas !! The fearless tarantula hawk female that is ready to reproduce searches for a tarantula burrow…
This tenacious pepsis wasp will tap and strum the web at the burrow entrance trying to coax the tarantula out. If the tarantula responds, a long battle will begin!
Most often the tarantula hawk wins by delivering a paralyzing sting to the tarantula. The paralyzed tarantula is dragged to a pre-dug burrow and dropped in by the large female wasp.
The tarantula hawk then lays a single egg on the paralyzed tarantula and leaves. The wasp larva will hatch and feed on the tarantula spider. After completing its metamorphosis, in about 3 weeks, the adult pepsis wasp will then dig its way out of the underground burrow and start its life cycle anew.
Tarantula Hawks, have the second most painful sting of any insect. Just how painful is the sting of the Tarantula Hawk? The Schmidt Sting Pain Index rates insect stings from 1-4. Africanized bees and hornets register 2. Bullent Ants and Pepsis wasps register 4 !!
Only the female Tarantula Hawk stings because the stinger is derived from the ovipositor, the egg-laying organ.
In the deserts of the southwestern US two species of Tarantula Hawks are common, pepsis formosa and pepsis thisbe. The most common in Arizona is pepsis formosa wasp with the orange wings.
Hundreds of Tarantula Hawk Wasp species exist worldwide. The color of the wings may very from species but the sting of the this killer wasp is described as blinding, fierce, and shockingly electric. Simply unbearable pain, lasting 3 minutes. A long 3 minutes! Not lethal to humans unless you are allergic to pepsis wasps.
How to tell the difference between the male and female pepsis wasp?
- The antennae of the male tarantula hawk is tightly curved while the FEMALE wasp is only SLIGHTLY curved.
- Tarantula Hawk females grow larger than the males, and can reach up to 3 inches in length.
This youtube video is a battle between the Tarantula Hawk and Tarantula Spider.
Both female and male pepsis wasps are nectarivorous. The male does not hunt but fills himself with the nectar of plants while watching for female tarantula hawks that are ready to reproduce.
Other than Roadrunners and Bullfrogs, most predators avoid the Tarantula Hawk wasp.
Little TIDBIT: The tarantula hawk wasp is the state insect of New Mexico. 🙂