The two became quite close through the years and when Les got too old to manage his small museum and ranch (where many of his fossils were from) he sold them to Sam (my brother-in-law). Since then Sam has worked with a number of scientists and has become very adept at preparing the fossils and has a list of museums around the world that he works with.
Knowing all this, I was a bit surprised when Sam told to me recently that he also had a few fossil insects that had come from a Chinese shipment that he had arranged to prepare. Over the holidays, he invited me over to see a few of his recent pieces that were still in his home. He had a fossil mantis (I think) and a strange fly, although see for yourself. It has strange antennae for a fly. The truth is, I'm not sure what it is. The dragonfly (or damselfly) is also from China. Apparently they're all taken from a level dating back to about 50 million years (to the early Cenozoic Era).
You may run into some of Sam's work in museums around the country. Some of them are also available for sale. You can check out his site on eBay (or you can email Linda directly for more information (firstname.lastname@example.org). Somebody who works with insect fossils should get in touch with him.