Loud babies of the beetle world
A handful of years ago, while enjoying solitude sitting outdoors, I heard a noise I hadn’t heard before. It was a subtle, paced, repetitious sound that was like clicking or grinding. I wondered if the metronomic culprit might be a cricket or tree frog. Always wanting to get a good picture to supplement this column or one of my daily #Nature365 posts on social media I snuck up on it. Expecting to see some sort of crawling creature on a log I was startled to discover that the noise was instead coming from inside of the log – which, by the way, wasn’t hollow. I couldn’t wrap my head around what I just experienced. What could have made that noise? A week or two later I had my “eureka!” moment when, in that same area, I saw a white-spotted pine sawyer. It was then I realized the noise I heard was the larva of the species. The babies are what give this beetle its name as the sound of them chewing wood is reminiscent of a small saw. The fact that the larva’s jaws – and just one larva,...