The Sixth Mass Extinction and Amphibian Species Sustainability Through Reproduction and Advanced Biotechnologies, Biobanking of Germplasm and Somatic Cells, and Conservation Breeding Programs (RBCs).

Primary themes in intergenerational justice are a healthy environment, the perpetuation of Earth's biodiversity, and the sustainable management of the biosphere. However, the current rate of species declines globally, ecosystem collapses driven by accelerating and catastrophic global heating, and a plethora of other threats preclude the ability of habitat protection alone to prevent a cascade of amphibian and other species mass extinctions. Reproduction and advanced biotechnologies, biobanking of germplasm and somatic cells, and conservation breeding programs (RBCs) offer a transformative change in biodiversity management.

A review of the subgenus Mesolethrus Nikolajev, 2003 of the genus Lethrus Scopoli, 1777 (Coleoptera: Geotrupidae: Lethrinae) with description of a new species.

A review of the subgenus Mesolethrus Nikolajev, 2003, with diagnostic characters, distribution data and a key to the species is provided. Lethrus (Mesolethrus) dyonini A. Shapovalov & Bagaturov, new species, is described from Uzbekistan (Tashkent Region).

Sinolethrus, a new subgenus of the genus Lethrus Scopoli, 1777 from China (Coleoptera: Geotrupidae: Lethrinae) and new synonymy of the subgenus Paralethrus Nikolajev, 2003.

Sinolethrus Bagaturov & Hillert, new subgenus is described as a monotypical subgenus for Lethrus serpentifer Semenov & Medvedev, 1935. The new subgenus is distributed in the north-central part of China. An identification key for the subgenera of the genus Lethrus Scopoli, 1777 is provided, diagnostic characters are illustrated.