I’ve tried to catch water striders many times in my life, but this day was with a camera instead of a jar. In all that time, however, I don’t think I’ve ever seen one eating. That said, take a close look at this little guy.
I’m not sure why, but it appears to be chewing on a little piece of decaying tamarack tree wood that I knocked into the stream (a fallen tree that i used as a bridge). I’m not sure if it was supposed to be a meal or something else.
The surface tension is the only thing keeping these insects from a frigid October stream. It must help to not have toes.