Makes great honey too.

First thought E. lilicena, but the coloring up is wrong for that. The third picture make me think: Graptopetalum. (this does not help; I know. sorry)

Could be! If the thorax (section between head and wings) has jagged zig-zag edges, it's definitely one of the many grain beetles. Those are the ones easy to ID. But if it's powderpost beetles...much harder to find out what they're eating. Look for holes or sawdust around any new old wood you've brought into the home in the last year or so (like antique furniture). Either way, best to get an ID, either from a local extension agency or identifying where they are coming from (or better photos and someone who knows beetles here can help). Better than bedbugs, right?

A solid, reliable name you will never have unless the gift shop you got it from can recall from whom they got it and if in turn that nursery knows what they sent. There are simply far too many look alike hybrids out there. (Unless you obtained a species ... but that is highly unlikely from a gift shop.) As far as its care goes, it is a member of the Oncidium Alliance -- of that there is little doubt -- and its care will most likely fall under typical Oncidium care.