98a (97a).    Tibiae without apical spurs; wing venation intricate with many veins ending before

                   wing tip (Figs.A-B) (parasitoids of grasshoppers)..................…........(Diptera)       Nemestrinidae

 

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                                            A                                                         B

 

 

 

98b.    At least middle tibia with apical spurs; antennae have long terminal style; wing venation

             normal, not complex (Figs.A-B) (both adults and larvae are predators of other

arthropods)............................................................................................................(Diptera)  Rhagionidae

 

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                                                    A                                             B