New parasitoid wasps of the family Braconidae are documented from Eocene Baltic and Rovno ambers. A new fossil genus belonging to the braconid subfamily Exothecinae, Palaeocolastes n. gen., with its type species P. bruesi n. sp., is described and illustrated from Baltic amber. This represents the first reliable fossil record for a member of Exothecinae. Two additional new species from Baltic amber are also described: Ascogaster (Syntaphus) latitibialis n. sp. (Cheloninae) and Meteorus arasnitsyni n. sp. (Euphorinae). Another fossil species, Microtypus eocenus n. sp. (Microtypinae), is described from coeval Rovno amber (Ukraine), representing the first braconid species described from this deposit. A new record of a female of Diospilites brevicornis Brues, 1933 (Diospilitinae) from Baltic amber, together with variation of some diagnostic features of the species and redescription of its subfamily and genus, are also provided.UUID: http://zoobank.org/656cb1a3-b9cf-4696-ae24-0d4df9545101.

中文翻译：

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始新世波罗的海琥珀和罗夫诺琥珀中的一个新属和三个新种的茧蜂化石（膜翅目、Ichneumonoidea）

从始新世波罗的海和罗夫诺琥珀中记录了 Braconidae 家族的新寄生蜂。属于 Braconid 亚科 Exothecinae 的新化石属，古结肠虫n. gen.，及其类型种磷.布鲁西n. sp.，从波罗的海琥珀中描述和说明。这代表了 Exothecinae 成员的第一个可靠的化石记录。还描述了来自波罗的海琥珀的另外两个新物种：阿斯科加斯特(合集)阔叶菜n. sp。（龟亚科）和螨虫n. sp。（大戟科）。另一种化石，初生小典型n. sp。（Microtypinae），从同时代的罗夫诺琥珀（乌克兰）中描述，代表了从该矿床中描述的第一个braconid物种。女性的新纪录短角薯蓣还提供了来自波罗的海琥珀的 Brues, 1933 (Diospilitinae)，以及该物种的一些诊断特征的变异及其亚科和属的重新描述。UUID：http://zoobank.org/656cb1a3-b9cf-4696-ae24-0d4df9545101.