87a (86b).    Mouthparts consist of 1-2 (if 2 then parallel, not opposable)
median, dark colored,
                   down curved mouth hooks
[Cyclorrhapha
maggots]............................................................ Diptera
 
 
87b.    Mandibles opposable, but at times reduced, without mouth hooks
as described previously
           [Apocrita
larvae].......................................................................................................................Hymenoptera