A possible true Mesozoic Gomphidae s. str. from the mid-Cretaceous Burmese amber (Odonata: Anisoptera)

Gunterbechlya pumilio gen. et sp. nov., first putative Mesozoic Gomphidae sensu stricto, is described from the mid-Cretaceous Burmese amber. It is remarkable in its reduced venation with quadrangular discoidal triangles, only found in the extant gomphid genera Lestinogomphus and Archaeogomphus, the libelluloid' Cordulephyidae and the Libellulidae: 'Tetrathemistinae'. All these taxa are small dragonflies with reduced venation. Possibly the particular quadrangular discoidal triangles of these insects are related to their small sizes. The positions of some Mesozoic taxa currently attributed to the Gomphidae are discussed and none can be considered as genuine representatives of this family. (C) 2018 Elsevier Ltd. All rights reserved.