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