Edwin,
This looks like one of the "Broad-nosed Weevils", order Coleoptera, family Curculionidae, subfamily Entiminae. See
http://bugguide.net/node/view/22777/bgimage . There are many genera, and I wouldn't even hazard a guess about exact species. If you need an exact ID, I suggest making friends with an entomologist at some nearby university. It's also worth registering with BugGuide.net so that you can post pictures and ask for ID's. But be a bit cautious and be sure to tell them where your pictures were shot -- their coverage seems much better for North America than Europe.
I'm glad to hear that you've had success getting into the stock photo company. Your photos have always been an inspiration to me -- the water striders
here and especially
here were marvelous!
--Rik