The Early Miocene (16–23 Mya) amber of Ethiopia constitutes a new source of fossil ants for Africa, where they are otherwise poorly documented. Here we report a diversified assemblage of six subfamilies and at least 19 genera that are still predominantly alive in the Afrotropics today. In this first account, a particular reference is made to the subfamily Dolichoderinae, with the description of two new species: Technomyrmex svojtkai Perrichot & Engel sp. nov. and Ravavy goldmani Boudinot & Perrichot sp. nov. The first is illustrated and described based on synchrotron-radiation microcomputed tomography, and the second represents the first fossil record for the tribe Bothriomyrmecini and Ravavy, a Malagasy and Afrotropical genus that was hitherto monotypic. The ant composition in Ethiopian amber is congruent with the global pattern emerging across ants and showing a Neogene diversification almost exclusively within extant genera.

中文翻译：

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中新世埃塞俄比亚琥珀中的蚂蚁（膜翅目：蚁科）：填补非洲陆地生物群地质记录的空白

埃塞俄比亚的早中新世（16-23 Mya）琥珀构成了非洲蚂蚁化石的新来源，否则它们在非洲的记录很少。在这里，我们报告了六个亚科和至少 19 个属的多样化组合，这些亚科今天仍然主要存在于非洲热带地区。在第一个帐户中，特别提到了 Dolichoderinae 亚科，并描述了两个新物种：Technomyrmex svojtkai Perrichot & Engel sp。十一月 和 Ravavy goldmani Boudinot & Perrichot sp。十一月 第一个是基于同步加速器辐射微计算机断层扫描进行说明和描述的，第二个是Bothriomyrmecini 和Ravavy 部落的第一个化石记录，这是迄今为止单型的马达加斯加和非洲热带属。