How do bugs survive winter?

Like all animals, including people, insects must deal with surviving in cold temperatures.  Insects thrive in warm temperatures.   Many species have adapted to survive in cold temperatures.  For soil dwelling insects such as grubs and termites, the insects go deeper into the soil.  Grubs and termites are found just below the frost line avoiding the cold.  Insects like Monarch butterflies migrate to warmer climates to survive the winter.  Others produce alcohol from sugars or proteins to help them avoid freezing.  The majority also hunker down in sheltered areas or seek out shelter under rocks and logs to survive the approaching cold weather by minimizing exposure and entering diapause which slows down their body processes to preserve energy.  Some insects overwinter in extremely inhospitable environments.  In the arctic insects survive down to -70 degrees F.