Details of the structure of the head of the larva of  Mycetobia  sp.  ( Mycetobiidae).
1 -- Head, ventral view.  2 -- Maxilla.  3 -- Lower lip (labium), ventral view.  4 -- Upper lip (labrum), ventral view.  5 -- Mandible.
lbr = upper lip,  lb = lower lip,  md = mandible,  mx = maxilla,  pmd = premandible.
(After KRIVOSJEINA, 1969)