Tom, I am a blow fly specialist and I see, at least one ID error in your pictures. If you are interested, I might I'd be happy to review and comment on your photos. I found your site while looking online for some good blow fly photos to use in my website, birdblowfly.com, which I am expanding to cover the whole family. Would you give me permission to use a few of your photos, I'd give you credit.
Terry Whitworth, PhD entomologist, WSU