Fuzzy chocolate

This bee fly (hemipenthes sinuosa) stopped by to sip some nectar from a salvia flower. I'm not too familiar with the life history of these; something tells me the adults feed on nectar. Some sketchy references out there suggest the larvae are parasitic, maybe on the larvae of solitary bees; maybe not. Another mystery of the small and many-legged goes unsolved, but I was pleased to make the acquaintance of this cute little thing in fuzzy chocolate brown.