Due to the cold temperature in Alaska, there are fewer numbers of beetle species here. The most significant is the spruce beetle, mostly in season between mid-May and mid-July, infesting white, sitka, and lutz spruce trees. The red flat bark beetle and the roughened darkling beetle are two of the most unique beetle species surviving in extreme cold conditions by producing anti-freezing components.
Some Alaskan recol3nts have mentioned spotting small black and blackish-brown beetles roaming around their homes, identified as carpet beetles and larder beetles. Their infestation at such high altitudes might not be too common, and no concrete records of their steady population exist.
Largest Beetles: Roughened Darkling Beetle, Red Flat Bark Beetle
Most Common Beetles: Spruce Beetle, Red Flat Bark Beetle, Roughened Darkling Beetle
Here is the list of beetles found in Alaska arranged in order of the family they belong to.