Eating Bugs

I took Clydes advice on working off last nights adventures. First 40 minutes of walking and a few hours later I went cycling for 7 miles. Enjoyed it but at one point I swallowed a big bug. I was going up a hill and was gasping for air and a big bug happened to fly right into my mouth. Unfortunately I didn't have time to see what kind of bug it was. I hope it wasn't any endangered species. I wonder how many calories a bug is?