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