Insects have remarkable strategies for surviving Colorado winters. A few species migrate to escape the cold. The most well-known species to do this is of course the monarch butterfly. By now they have made their way to roosting sites in Mexico (or California in the case of monarchs from the Western Slope). The green darner, Colorado’s largest dragonfly, is another species that makes its way south before winter arrives. For the rest of the insects that can’t fly thousands of miles, they stay put right here in Colorado.
|Migrating green darner dragonfly. Photo by Praveer Sharma, Flickr Creative Commons CC-BY-SA 2.0|
|Multicolored Asian lady beetles preparing to overwinter. Photo by Howard Russell & Christine DiFonzo, Michigan State University|
|Aphid eggs on pine needles. Photo by Beatriz Moisset, bugguide.net|
Japanese beetle larvae. Photo by David Shetlar, the Ohio State University
|Emerald ash borer larva in its gallery. Photo by Howard Russell, Michigan state University|
|Black swallowtail pupa. Photo by Donald Hall, University of Florida|