Mojave National Preserve
Tarantula Hawk Wasp


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These insects are easily identified. Its dark black body shines with a metallic look, providing sharp contrast with its bright orange wings. The bright colors are probably important for establishing dominance, and attracting a suitable mate. They are nectar feeders, and can often be found in gatherings of a dozen or more feeding on plants. They are especially fond of milkweed flowers.

Their means of reproduction is what gives them their name and fascinates those of us with a morbid curiosity. Females who are ready to lay eggs is on the lookout for a tarantula. They often disturb the web near a tarantulas burrow, and when the tarantula rushes out the wasp stings the spider and injects venom.

Now this is where it gets weird. Instead of killing the tarantula, the venom only causes paralysis. The wasp then drags the tarantula to a burrow, stuffs it down the hole, and then lays her eggs on top of the paralyzed spider. Several days later the eggs hatch, and the larvae feed on the still living tarantula. Not a pleasant way to spend your last days! When the larvae mature they metamorphose into adult wasps to complete the cycle.

Common Name: Tarantula Hawk, Tarantula Wasp, Tarantula Hawk Wasp
Latin Name: Hemipepsis spp.
Habitat: Dry hillsides and rolling arid plains
Range: California and Mexico