Some anisopodoids (Insecta: Diptera: Anisopodoidea) from late Mesozoic deposits of northeast China

Three new species of anisopodoids from the Daohugou (Inner Mongolia) and Haifanggou (Liaoning) formations, are described from six almost complete specimens, namely: Protorhyphus neimonggolensis sp. nov., P. liaoningicus sp. nov. and Megarhyphus rarus sp. nov. Protorhyphus neimonggolensis and P. liaoningicus are assigned to the Protorhyphidae, and Megarhyphus rarus to the Anisopodidae (Anisopodoidea, Diptera). The family designations of all Chinese specimens described previously within the Anisopodoidea are questionable; those of Brachyopteryx weichangensis Hong, Eoanisopoditis fushunensis Hong, Hongocaloneura plectilis (Hong), Limnorhyphus haifanggouensis Hong, Mesobrachyopteryx shandongensis Hong and Wang and Sinorhyphus arcuatus Hong are reassessed here.