Revision of the genus Metoisops (Hemiptera: Heteroptera, Miridae, Isometopinae) from late Eocene European amber.

Metoisops akingbohungbei, M. groehni, M. punctatodiffusus, M. intergerivus, M. grabenhorsti, M. variabilis, and M. consimilis are described as new species from the late Eocene Baltic, Ukrainian, (Rovno) and Saxonian (Bitterfeld) amber. The new diagnosis of the genus Metoisops and also all species of this genus presented, along with illustrations. An analysis of all studied specimens referring to of Metoisops from different Eocene European amber demonstrates the great variability of their features, and allows for differentiation of species. Ratios of the width and length of body, eye, vertex, antennal and rostral segments, pronotum, mesoscutum and scutellum, claval commissura, length of hind femur, tibia and tarsus, corium and cuneus length, as well as ratio of membrane cell's width and length of all 9 species of the genus Metoisops are presented.