How long does an assassin bug live?

Assassin bugs

Class: Insecta

Order: Hemiptera

Sub-order: Heteroptera

Family: Reduviidae

Almost 3,000 species exist and more are being classified.

Most assasin bugs lay their eggs in the autumn in cracks and crevices that contain lots of leaves. The eggs hatch in the following spring and the nymphs look very much like the adults, except they are smaller. Assassin bugs go through incomplete metamorphosis (egg-nymph-adult). After hatching from the egg, the nymph passes through five instars or growth stages. The nymph molts at the end of each instar, becoming an adult after the final molt. Adults often are the stage that live through the winter, and they begin a new generation in the spring and die.

Your answer is about one year.