New data on spider wasps of the subgenus Ammosphex Wilcke, 1942 (Hymenoptera, Pompilidae, Arachnospila Kincaid, 1900) from Western Siberia, Russia.

The new species, Arachnospila (Ammosphex) altaica Loktionov, sp. nov., is described and illustrated from the Altai Republic, Western Siberia, Russia based on male specimens.

Review of the genus Pamirospila Wolf, 1970 (Hymenoptera, Pompilidae), with description of a new species.

Seven species of the genus Pamirospila Wolf, 1970 are reviewed, of them, P. montana Loktionov, sp. nov.

Discovery of a new extinct spider wasp (Hymenoptera, Pompilidae) from Eocene Rovno amber.

Paleogenia waichertae Loktionov, Lelej et Perkovsky, sp. nov. is a new species of extinct spider wasps.

Spider wasps (Hymenoptera, Pompilidae) of the Republic of Khakassia, Eastern Siberia, Russia.

The spider wasp fauna of the Republic of Khakassia (Eastern Siberia, Russia) is revised. The number of species recorded from Khakassia has increased from 15 to 60, genera-from 4 to 17, subfamilies-from 2 to 3. An annotated list of the species with citation, examined material, and general distribution is given.

The type material of spider wasps (Hymenoptera, Pompilidae) deposited in the Federal Scientific Center of the East Asia Terrestrial Biodiversity, Russian Academy of Sciences, Vladivostok, Russia.

The type material of spider wasps deposited in the Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok, Russia is catalogued. In total, this includes 305 primary type specimens (31 holotypes and 274 paratypes) belonging to 62 species and 1 subspecies, described between 1962 and 2019 from Russia, Tajikistan, China, South Korea, Japan, Laos, Indonesia, and Sri Lanka. All 31 holotypes are illustrated with color photographs and black-and-white drawings.

A review of the spider wasp genus Austrosalius Turner, 1917 (Hymenoptera, Pompilidae), with the description of a new species.

The Australasian spider wasp genus Austrosalius Turner, 1917 is reviewed for the first time. The genus comprises three species, of them Austrosalius mikhailovi Loktionov, sp. nov.

Discovery of the spider wasp genus Telostholus Haupt, 1929 (Hymenoptera, Pompilidae) in Laos, with the description of three new species.

The genus Telostholus Haupt, 1929 is newly reported from Laos, with three species which are newly described and illustrated: T. kubani Loktionov, sp. nov.

The spider wasp genus Telostholus Haupt, 1929 (Hymenoptera, Pompilidae) in Malaysia, with the description of four new species.

The genus Telostholus Haupt, 1929 is newly reported from Malaysia, with four species that are newly described and illustrated: T. bifasciatus Loktionov, sp. nov.

New remarkable species of the subgenus Stigmatodipogon Ishikawa, 1965 of the genus Dipogon Fox, 1897 (Hymenoptera: Pompilidae) from Thailand and India.

Two new species, Dipogon (Stigmatodipogon) chiangmai Loktionov, sp. nov. and D.

Discovery of the genus Kudakrumia Krombein, 1979 (Hymenoptera: Mutillidae) in India and description of a new species.

The Oriental genus Kudakrumia Krombein, 1979 is newly reported from India with two species: K. mirabilis Krombein, 1979 (Kerala) and K. rangnekari Girish Kumar Lelej, sp.

The spider wasp genus Telostholus Haupt, 1929 (Hymenoptera, Pompilidae) in Indonesia, with the description of three new species.

Four species of the genus Telostholus Haupt, 1929 are reported from Indonesia, three of them are described and illustrated as new species: T. celebes Loktionov Lelej, sp. nov.

Contribution to the knowledge of the subgenus Stigmatodipogon Ishikawa, 1965 of the genus Dipogon Fox, 1897 (Hymenoptera: Pompilidae).

Two new species, Dipogon (Stigmatodipogon) siam Loktionov Lelej, sp. nov. and D.

A contribution to the Mutillidae (Hymenoptera) of Hong Kong.

A list of 12 species in nine genera occurring in Hong Kong is given. The hitherto unknown male of Bischoffitilla lamellata (Mickel, 1933) is described and illustrated. Six species are newly recorded from Hong Kong.

Revision of the subgenus Stigmatodipogon Ishikawa of the genus Dipogon Fox (Hymenoptera: Pompilidae: Pepsinae).

The systematics of the subgenus Stigmatodipogon Ishikawa of the genus Dipogon Fox is revised. Six species are listed. Two new species, Dipogon (Stigmatodipogon) kurokawai Shimizu, sp.

Contribution to the knowledge on the spider wasps genus Morochares Banks, 1934 (Hymenoptera: Pompilidae) from China.

Five species of the genus Morochares Banks, 1934 are reported from China, four of them are described and illustrated as new species: M. sinica Loktionov Lelej, sp. nov.

Discovery of the spider wasp genus Sphictostethus Kohl, 1884 (Hymenoptera: Pompilidae: Pepsinae) in New Guinea, with description of two new species.

Two new species of the genus Sphictostethus Kohl, 1884 are described and illustrated from New Guinea (Indonesia: West Papua). Both species, S. papua Loktionov Lelej, sp.

Discovery of the genus Ishikawa in the Oriental region, with description of two new species from China (Hymenoptera, Pompilidae).

The genus Ishikawa, 1965 is newly recorded from China (Guangdong, Hainan, and Yunnan) and the Oriental Region. Two new species, Loktionov, Lelej & Xu, (Guangdong, Hainan, Yunnan) and Loktionov, Lelej & Xu, (Guangdong, Yunnan), are described and illustrated. The updated key to the species based on Shimizu et al.

Review of the genus Eopompilus Gussakovskij, 1932 (Hymenoptera: Pompilidae) with the description of new species from China.

The genus Eopompilus Gussakovskij, 1932 is reviewed. A new species, Eopompilus pseudominor Loktionov, Lelej Xu, sp. nov.

Review of the genus Chen, 1957 (Hymenoptera, Mutillidae, Mutillini), with description of two new species.

Eight species of Zeugomutilla Chen, 1957 are reviewed. Zeugomutilla angkorensis Williams, sp. nov.

Review of the species-group (Hymenoptera: Pompilidae), with description of a new species from China.

Eight species in the Priocnemis hyalinata species-group are reviewed. The species-group is recorded from Oriental Region for the first time, and one new species, Priocnemis (Priocnemis) yunnanensis Loktionov, Lelej & Xu, sp. nov.

Review of the genus Lelej, 1996, with description of two new species from China (Hymenoptera, Mutillidae, Trogaspidiini).

Eleven species of Lelej, 1996 are reviewed and keyed, and the diagnosis of the genus is given. The genus is newly recorded from China and Lelej, (China: Guangdong, Hainan) and Lelej & Xu, (China: Yunnan, Hainan) are described and illustrated. New combination is proposed for (Kohl, 1882), (from the genus Lelej, 1996).

Review of the genus Stigmaporus S. Zonstein, 2001 (Hymenoptera: Pompilidae), with description of new species.

The genus Stigmaporus S. Zonstein, 2001 is newly recorded from Russia. Four species are reviewed.

Keys to genera of the spider wasps (Hymenoptera: Pompilidae) of Russia and neighbouring countries, with check-list of genera.

Keys to 55 genera of spider wasps of Russia and neighbouring countries in females and males are given. Of them 34 genera are distributed in Russia. An annotated list of genera with type species and distribution data within Russia and biogeographical regions is given.

Revision of the Palaearctic brood parasitic genus Nipponodipogon Ishikawa, 1965 of spider wasps (Hymenoptera: Pompilidae: Pepsinae).

The systematics and bionomics of the Palaearctic brood parasitic genus Nipponodipogon Ishikawa, 1965 are revised. Seven species are listed. A new species N.

New and little-known species of Arachnospila (subgenus Ammosphex) (Hymenoptera: Pompilidae) from East Siberia.

Seventeen species are listed. Five new species: Arachnospila (Ammosphex) kasparyani sp. nov.