It's been a week or two since I posted about Braula (I typed Bracula) and
I've been meaning to post an update, but haven't found the time.  Well,
now's the time!
 
From the 1992 edition of _The_Hive_and_the_Honey_Bee_, pages 1133-1134:
 
"One fly, the bee louse Braula coeca, is an worldwide ectoparasite of
honey bees (Smith and Caron, 1984a).  The flies ride about on honey bees
and take their food at the bee mouthparts.  The maggots tunnel beneath
wax cappings to eat pollen and debris and may disfigure honey to be sold
in the combs.  Although numbers of B. coeca may congregate on the queen
(Fig. 23) in the fall, the greatest problem with this curious and
generally harmless pest is it's being mistaken for a mite when spotted
on bees (1984b)."
 
Aaron Morris - I think, therefore I bee!