271a (270a).    Prepectus not fused to pronotum; suture clearly visible (Fig.A)..........................

................................................................................................................ Perilampidae  (Chrysolampinae)

 

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                                              A

 

271b.    Prepectus fused to pronotum (suture absent or faint) (Figs.A-D)....................................

...................................................................................................................... Perilampidae  (Perilampinae)

 

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                                       A                                                   B                                        C                                              D