Well now, that is one flashy fly! I see that BugGuide has some more pictures of this species (guide page
here). They also mixed into the lineup a different but similar appearing beast
Adejeania with very long mouthparts. (The comments point this out.)
Hhmm... I see that Wikipedia has a page for
Adejeania but not for
Hystricia. A Western bias perhaps?
Google search on Hystricia turns up quite a few more shots, mosty in the wild, including one very nice one
here.
Not much info posted on life history, though -- all I ran across was one page for a related species listing hosts as "Arctiidae" (a family containing the Tiger Moths, among others).
Did you rear this one, Tony, or catch it on the loose?
--Rik