Review of Cordylocras Kozlov (Hymenoptera, Diapriidae): with a new species and redescription of C. mirabilis Kozlov.

The female of Cordylocras abscondita de Paz & Popovici sp. nov., is described and illustrated from the province of Salamanca (Western Spain).

Revision of the genus Symphytopria Kieffer (Hymenoptera, Diapriidae, Diapriinae) with notes on its taxonomy.

The genus Symphytopria Kieffer, 1910 is revised based on an examination of the holotypes of all described species. Symphytopria fusciceps Kieffer, 1910, syn. nov.

'Where there are many cattle' in the Eocene of Ukraine: Review of Ambositra Masner (Hymenoptera, Diapriidae, Ambositrinae) from Rovno amber, with the description of three new species.

Three species of the genus Ambositra: A. epicnemia sp. nov.

A review of the genus (Hymenoptera, Diapriidae) in Germany with taxonomic notes on this genus and its distinction from .

This study provides a comprehensive overview of the genus Förster combining DNA barcoding and current morphology. Nineteen species of were found throughout Germany, including the newly described species First species records for Germany are: Macek, 1997; Macek, 1997; (Kieffer, 1908); Macek, 1997; Macek, 1997 and Nixon, 1957. We also clarify diagnoses for the two related genera, Förster and to designate the boundaries of the genus and propose new synonymies: Buhl, 1997 is a junior synonym of (Zetterstedt, 1840); Kozlov, 1978 is a junior synonym of (Curtis, 1831).

First record of the parasitoid family Ismaridae (Hymenoptera, Diaprioidea) from Eocene Baltic and Rovno ambers with the description of a new genus and two new species.

A new genus, Lubomirus gen. nov., of the family Ismaridae (Hymenoptera, Diaprioidea) from the late Eocene Baltic and Rovno ambers is described and illustrated.

Review of German Westwood (Hymenoptera, Diapriidae, Spilomicrini).

Background: This study provides an integrative taxonomy-based review for the genus Westwood in Germany using DNA barcoding and classic morphology.

New Information: Tomsik, 1947 is placed in synonymy with Jurine, 1807; Kieffer, 1911 is removed from synonymy with Marshall, 1868. A lectotype is designated for Thomson, 1858.

Taxonomic and nomenclatural notes on Kieffer, 1911 (Hymenoptera, Diapriidae) and synonymy of the genus Kieffer, 1910.

This paper reviews the status of and its nominotypical and only included species . was previously understood to be very similar to, and doubtfully separated from the genus . We use integrative taxonomy (morphology, DNA-barcoding, phylogenetic tree building) to show that the valid name for what was Kieffer, 1911 is now (Kiefer, 1911) and that is consequently a junior synonym of The following taxa are new synonyms of : Wasmann, 1909, , Kieffer, 1911, , Kieffer, 1911, .

A review of the genus Phaneroserphus (Hymenoptera, Proctotrupidae) in North and Central America with the description of a new species.

Phaneroserphus mesamericanus sp. n. is described from Central America.

Revision of Palaearctic Idiotypa (Hymenoptera, Diapriidae, Diapriinae, Spilomicrini).

A revision of the Palaearctic species of the genus Idiotypa Förster is provided. The genus Eunuchopria Szabó, 1961 is a junior synonym of Idiotypa Förster, 1856 syn. n.

Review of the genus Paramesius Westwood, 1832 (Hymenoptera: Diapriidae, Spilomicrini) from Russia, with description of four new species.

A review of the eight Palaearctic species of the genus Paramesius Westwood is provided, four of which are described and illustrated: P. primorus Chemyreva et Kolyada, sp. nov.

Three new species of the parasitic wasps genus Spilomicrus Westwood (Hymenoptera: Diapriidae) from the East Palaearctic Region.

Three new species of Spilomicrus Westwood from the East Palaearctic with occipital flange broad and notauli broad and deep posteriorly, S. notaulus sp. nov.