New sinoalids in mid-Cretaceous amber from northern Myanmar (Insecta: Hemiptera: Cercopoidea)

Abstract

Here we describe two new genera and two new species of the extinct froghopper family Sinoalidae, Paraornatiala daidaleos gen. et sp. nov., and Ctetosinoala tetraspina gen. et sp. nov., from the mid-Cretaceous amber of Myanmar. Cretosinoala resembles Sinoala from the Middle–Upper Jurassic (ca. 165 Ma) Daohugou beds (Yanliao biota, China) based on its wing venation. Paraornatiala shares several characters with Ornatiala and Jiaotouia but provides two peculiar features that are unknown in Sinoalidae: apex of metafemur armed with a distal spine, and vein RA of tegmen single-branched. Additionally, our discovery increases the documented palaeodiversity of sinoalids, confirming the high morphological disparity of Sinoalidae in mid-Cretaceous.