25 - 30 days
An ichneumon wasp will not lay her eggs in humans. The ichneumon wasp prefers to lay her eggs in the ground or on tree bark.
The eggs of the Ichneumon wasp are inserted into the tunnels of a pigeon tremex. The larvae develop over the winter and adults emerge in the spring.
Order: Hymenoptera Family: Ichneumonidae
Ichneumon wasps eat pollen and nectar, if they eat at all. Most species spent their life searching for food for their larvas.
Indian meal moth
The eggs of the Ichneumon wasp are inserted into the tunnels of a pigeon tremex. The larvae develop over the winter and adults emerge in the spring.
This insect is the Megarhyssa Nortoni, also known as the Western Giant Ichneumon. This large wasp is found in Western North America, New Zealand, Tasmania and Brazil.
Some can lay eggs in their host which eats them alive from the inside out. An example is the Pepsis wasp which lays it's eggs in tarantulas. Another is the Ichneumon wasp which lays it's eggs on caterpillars. And there's a lot more out there.
Ichneumon Wasp I have found them in Utah, also.
It could be a wasp or beetle. Both can be black with just one stripe. They typically do not sting, unless provoked.
Ichneumon wasps are highly specific parasitoid wasps. They will often have one specific target prey. Observe them and try to find out what they are after. Perhaps beetle grubs in your trees? If you get rid of their prey, you get rid of them as well.
An ichneumon wasp. Found out the hard way when one stung me on the face.