First Butterflies of Spring

There are a couple of fairly common woodland butterflies that I usually start to see right around this time of year: the comma butterfly and the mourning cloak butterfly. It should be a bit of a toss-up which I see first since they start to appear at roughly the same time. In practice, it seems like I usually spot the mourning cloak first. This year was no exception to that; I spotted my first mourning cloak on the 21st (I didn’t have my camera with me at the time, though), and I haven’t spotted a comma yet.

The two species are relatively closely related and have a similar strategy that allows them to be present super early in the spring; both overwinter as adults and can feed on tree sap so they aren’t dependent on flowers blooming to be active.

Mourning cloak butterfly
This mourning cloak butterfly was basking in a patch of sunshine in the woods which might be part of why I was able to creep up on it. Their distinctive colors and markings make them pretty unmistakable.
Comma butterfly on willow catkins
This comma butterfly is perched on one of its host plants (plants their caterpillars develop on), willow.

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