Entomology definition of Platyptera: flat and broad-winged: an ordinal term
applied to insects with four net-veined wings, secondaries
longitudinally folded beneath primaries; mouth mandibulate;
prothorax free; transformations complete: Psocidae, Termitidae,
Perlidae and Mallophaga. {Scanner’s comment: These four groups
are now placed in totally separate orders, and not families as
these names imply}