Hoverfly Detail

Again, another image from the garden fauna.... I love the detail the OM-1 can capture. I just wish i had more time to play at the moment. It was a handheld In-camera focus stack, but the wings weren't as sharp as I'd wanted. I suspect a depth of field issue?

Although I have an excellent book on hoverfly ID I've no idea which one this is?

Met up at The Greyhound pub in Newcastle-under-Lyme with some friends this evening for a catchup.