
As snow melts, question mark butterflies emerge from winter hibernation.
Monarchs perform one of the most famous migrations in the world, but not all of their fellow fliers escape to the south. Most butterflies and most other insects don’t migrate. They’re hidden in the landscape in various stages of their life cycles for the winter months. Here’s how and where some of your favorite backyard guests withstand the chilly weather.
Survival Skills
Butterflies and other bugs use various mechanisms to make it through the brutally cold months. They slow their metabolisms way down in a process called diapause. Certain chemicals in their bodies act as antifreeze. And they rid their bodies of nearly all water to avoid turning into an ice crystal.
Life Stages
Some butterflies hibernate through winter as adults. Mourning cloaks, question marks, commas and others hunker down, tucked away behind loose bark or in fallen leaves. But most spend the season in other stages of their life cycle.
Fritillaries, crescents and many skippers hatch in the fall and sleep through winter as caterpillars. Other species, such as coral hairstreaks and Karner blues, overwinter as eggs and hatch the following spring. Viceroys, also known as monarch look-alikes, employ an entirely different tactic. Caterpillars from the summer’s last brood create shelters called hibernacula. The itty-bitty caterpillars instinctively know to chew a leaf in a specific pattern, then fold and fashion it into a tentlike structure. The rolled leaf is lined and fastened to a stalk with silk the caterpillars spin themselves. Other caterpillars, like the beautiful and well-known swallowtails, reach full size and form their pupa, or chrysalis, before winter sets in.
Common backyard bugs persevere in similar ways. Many moth and beetle eggs, for example, are hidden in rough tree bark or under leaf litter. Praying mantis eggs stay safe and cozy in insulated egg sacs. Most dragonflies in their wingless nymph stage survive the cold underwater. And if your house
has ever been invaded by swarms of lady beetles or stinkbugs in fall, then you know their overwintering strategy all too well.
Winter Hideouts
The more habitat you supply for butterflies and other insects, the more robust with flying creatures your spring garden will be. It’s as simple as not being too tidy. Dried plant stalks and seed heads offer hiding spots for insects, so go easy on deadheading. Stacks of firewood, brush piles and leaf litter also make a backyard more desirable to bugs. Before you know it, higher temps wake backyard insects, and your space comes alive again.
Val says
Thank you for this I always wondered about Butterflies and moths Gods creation is amazing.
K. A. LaMar says
I wish you would refer to them as ‘insects’ rather than ‘bugs.’ Bugs are an order of insects, with distinctive stylets, which can pierce and suck food from plant cells. Insects—which this article appears to be covering—are the largest kingdom in taxonomy.
Comenius School of Creative Leadership says
I’m a Kindergarten Teacher and I always gather caterpillars in the late summer for my class to observe the whole amazing process of metamorphosis. Last year I had 12 and 6 of the chrysalises did hibernate in my classroom in the Butterfly house and then they came out in may and 2 waited until September they were in for 9 months it was pretty amazing. This year I had no caterpillars another first for me…
Neecie says
thought I read the butterflies’ life span is only a few weeks. tell me more about this.
Neecie says
thought butterflies life span is only a few weeks.
tell me more about hibernation time, etc.
Julie G. says
I wish I could share this article on Facebook. My husband and I were just wondering about this topic.
Gabriele ---- Kruger says
I have a full grown Praying Mantis living on my Basil plant in the back yard. She was the only one who decided to stay since hatching from a cocoon in early spring. My concern is that once the plant dies in winter, what will happen to her?? Where will she go?? Should I set up a Terrarium and bring her inside the house?? Then the question will be what to feed her?? Can someone help me figure this out??
J Whitmer says
I would use care with this aggressive insect. They truly do PREY … even upon hummingbirds!! We witnessed this this past summer & now have different outlook. The hummingbird struggling & crying out! Can see on YouTube & other info online. We didn’t believe before witnessing it personally.