Reike, H.-P.; Alexeev, V.; Gröhn, C.; Arlt, T.; Manke, I.: First extinct species of the genus Holoparamecus (Coleoptera: Merophysiidae: Holoparamecinae) from Eocene amber deposits. Studies and Reports : Taxonomical Series 16 (2020), p. 241-255
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Abstract:
Holoparamecus (Blumenus) hoffeinsorum Reike & Alekseev sp. nov. and H. (Blumenus) paschalis Reike & Alekseev sp. nov., two fossil representatives of the family Merophysiidae, are described on the basis of specimens from Bitterfeld and Baltic amber. The newly described species are illustrated and compared with related extant representatives of the genus. Phase-contrast synchrotron microtomography was used for the first time to study a member of this family. New combinations and synonymy, as well as a check-list and identification key are proposed for the species included in the subgenus Blumenus Belon.