A little beetle crawling along a branch. He looks like something I would have caught and put into a jar when I was little – a Lightning Bug. But here he is roaming around, not on a hot, humid summer evening, but in WINTER. This doesn’t make sense. So much of Mother Nature’s world is a mystery, but that’s why I’ve got all those books in my library. Books for the baffled master naturalist. Go digging in those books.
Mystery solved! This beetle is a Winter Dark Firefly, Ellychnia corrusca. A cousin to my childhood memory, Lightning Bug. This Winter Dark Firefly, as larva and pupa, produces his own light. As a young adult he will still glow but as he ages he loses that glow. As an adult he finds a snug winter home under tree bark and emerges in late winter or early spring, where I find him crawling along a branch.