Appears to be a group of nicely colored stieny's to me as well.
I've only seen true Pellegrini pics once, on Alf Stalsberg's website. He actually went down and collected some and brought them back to Europe. Sometimes we see crassilabris over here in the US, but even they are really rare. Almost all out redhumps are stienys.The Pellegrini come from an area that has no commericial collectors, right smack in the middle of the cocaine plantations. Not many individuals are willing to try and grab some obviously. Alf is a nut though, in a good way.