183a (182a).    Maxillae with only a single lobe (Figs.A-E) (general predators).….(Coleoptera)  Nitidulidae

 

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                           A                              B                                 C                                  D                                 E

 

 

183b.    Maxillae with both an inner and an outer lobe; abdomen tip exposed beyond elytra; last

             tarsal segment elongated, others are short (Fig.A) (also see couplet 160) ...................

..............................................................................……................................(Coleoptera)  Rhizophagidae

 

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                          A