中国科学院南京地质古生物研究所机构知识库

Eoiocossus validus gen. and sp. nov., a new genus and species belonging to Palaeontinidae (Insecta, Hemiptera), is described from the Middle Jurassic of Daohugou, Inner Mongolia, China. It differs from other genera as follows: large forewing with small clavus, Se terminating in costal margin beyond the nodus, nodal line along m(4)-cua partly, CuA(2) with two branches and A(2) developed. The ripple-like posterior margin and fresh colour pattern of Eoiocossus may be sex characteristics. The marginal membrane and ambient vein have not distinct evolutionary implications for the Palaeontinidae.