New cymatophlebiid dragonflies from the Lower Cretaceous of China and England (Odonata: Anisoptera: Cymatophlebiinae, Valdaeshninae)

Cymatophlebia yixianensis sp. nov., the first Chinese Cretaceous cymatophlebiid dragonfly (cymatophlebiine), is described from the Lower Cretaceous Yixian Formation of western Liaoning, NE China. Cymatophlebia yixianensis sp. nov. has a forked RP2 near the wing margin differing from other species of Cymatophlebia Deichmüller 1886. A new valdaeshnine dragonfly, Valdaeshna mikei sp. nov., is described from the Lower Cretaceous Upper Weald Clay of southern Surrey, SE England, differentiated from Valdaeshna surreyensis Jarzembowski, 1988 in its larger size, a long Pt-brace, and a broad area between Rspl and IR2. An updated diagnosis for Valdaeshna Jarzembowski, 1988 is proposed.