Abstract
Based on external and internal structural features of larvae and adults, the phylogeny of Trictenotomidae, Salpingidae, Pythidae, Boridae,TydessaPeacock (included previously in Pilipalpinae), Pilipalpinae, Pyrochroinae, and Pedilinae is reconstructed as: (Trictenotomidae + Salpingidae + Pythidae) + (Boridae + {Tydessa+ [Pilipalpinae + (Pyrochroinae + Pedilinae)]}). The genusTydessais placed in its own monobasic subfamily, Tydessinae. Both Tydessinae and Pilipalpinae are included in Pyrochroidae, along with Pyrochroinae, Pedilinae, and possiblyCononotusandAgnathus. A historical account of the classification of Pilipalpinae is presented, along with a revised subfamilial classification of Pyrochroidae and Pythidae.

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