Eight species of Zeugomutilla Chen, 1957 are reviewed. Zeugomutilla angkorensis Williams, sp. nov. (Cambodia, Thailand, Vietnam) and Z. pangi Lelej, sp. nov. (China: Hainan) are described and illustrated. A new combination is proposed for Z. spinulosa (André, 1898), comb. nov. (from Pristomutilla Ashmead, 1903). Zeugomutilla bainbriggei (Turner, 1911) and Z. horni (André, 1907) are newly recorded from India (Tamil Nadu), Z. pycnopyga Chen, 1957 is newly recorded from Thailand, and Z. saepes (Chen, 1957) from Cambodia and Thailand. An updated diagnosis of the genus and key to males and females are given.

The systematics and bionomics of the Palaearctic brood parasitic genus Nipponodipogon Ishikawa, 1965 are revised. Seven species are listed. A new species N. sudai Shimizu, sp. nov. (Japan, Honshu) and the hitherto unknown males of N. iwatai (Ishikawa, 1965) and N. nagasei (Ishikawa, 1965) are described and illustrated. Six species from Japan and the Russian Far East are redescribed. A key to species is provided.

Two hundred and forty-four valid species in 36 genera are listed. The genus Telostegus Costa, 1887 with the species T. inermis (Brullé, 1833) are newly recorded from Russia. Lectotypes are designated for Salius desertorum F. Morawitz, 1891, Psammochares amurensis Gussakovskij, 1932, and Pompilus cardinalis F. Morawitz, 1891. The generic status of Batozonellus Arnold, 1937, stat. resurr. is reinstated. Five taxa: Ceropales pygmaea pygmaea Kohl, 1880, C. ruficornis Gussakovskij, 1931, Eoferreola anatolica Priesner, 1973, Hemipepsis sinensis (Smith, 1855), and Telostegus nigritulus (Klug, 1834) are excluded from the list of the Russian fauna. The world number of genus-group names of Pompilidae is clarified: 451 nominal names, including 42 unavailable names, were proposed. Of the 409 available names, 254 are currently considered valid.

Eleven species of Promecidia Lelej, 1996 are reviewed and keyed, and the diagnosis of the genus is given. The genus Promecidia is newly recorded from China and Promecidia abnormis Lelej, sp. n. (China: Guangdong, Hainan) and Promecidia chui Lelej & Xu, sp. n. (China: Yunnan, Hainan) are described and illustrated. New combination is proposed for Promecidia boopis (Kohl, 1882), comb. n. (from the genus Petersenidia Lelej, 1996). New status is proposed for Promecidia saturnia (Mickel, 1935), stat. n. and Promecidia samawangensis (Mickel, 1935), stat. n.

Summary. An annotated catalogue of 138 species and three subspecies of Siberian Chrysididae, based on the materials collected by the Russian co-authors in Western and Eastern Siberia (in 2007, 2010, as well as other specimens housed at the Zoological Institute of St. Petersburg (Russia) and in private collections, is given in two issues. Totally 21 species are newly recorded from Russia and 40 from Siberia. Besides 19 species are recognized as new, eight of them are described in the first part of paper: Euchroeus victorius Rosa, sp. n., Pseudochrysis gengiskhan Rosa, sp. n., Chrysis inconsueta Rosa, sp. n., Ch. proauriceps Rosa, sp. n., Ch. sibirica Rosa, sp. n., Ch. pavesii Rosa, sp. n., Philoctetes cynthiae Rosa, sp. n., Ph. lyubae Rosa, sp. n.; and eleven species will be described in the second part.