Review of the spider wasp genus Episyron Schidte, 1837 (Hymenoptera: Pompilidae) from India, with description of three new species.

The spider wasp genus Episyron Schidte, 1837 is reviewed, with five species recorded from various parts of India along with three new species described and illustrated from Kerala: E. keralaensis Anju, Girish Kumar & Thejass, sp. nov., E. nigrocalcarius Anju, Girish Kumar & Thejass, sp. nov., and E. rufotibius Anju, Girish Kumar & Thejass, sp. nov. Diagnosis of species occurring in India, comparisons of new species with congeners and a key to the Indian species also are provided.

Review of the genus Miscophus Jurine, 1807 (Hymenoptera: Crabronidae: Crabroninae) of the Indian subcontinent with descriptions of two new species from southern India.

The digger wasp genus Miscophus Jurine, 1807 from the Indian subcontinent is reviewed with descriptions of two new species from India, Miscophus kaleshi Girish Kumar and Miscophus prasanthi Girish Kumar. A key to Miscophus of the Indian subcontinent is provided.

Taxonomic study on the spider wasp genus Ceropales Latreille, 1796 (Pompilidae: Ceropalinae) with description of two new species from India.

The spider wasp genus Ceropales Latreille, 1796 from India was studied, resulting in the discovery of two new species in the nominotypical subgenus: Ceropales (Ceropales) anaghae Anju, Girish Kumar & Thejass, sp. nov. and C. (C.) keralaensis Anju, Binoy & Thejass, sp. nov. Description of the new species with illustrations, comparisons with congeners and a key to Indian species of the subgenus are also provided.

A new genus and two new species of Braconinae (Hymenoptera: Braconidae) from the Oriental region.

A new genus of Braconinae, Pseudorhadinobracon Ranjith & van Achterberg, is described based on the species (P. luteus (Szpligeti) gen. et. comb. nov.) earlier classified under the genus Rhadinobracon Szpligeti. Additionally, the genus Rhadinobracon is newly reported from the Oriental region with the description of two new species from India, R. levigatus Ranjith and R. nitidus Ranjith. A taxonomic key to separate Pseudorhadinobracon from Rhadinobracon is provided. The generic diagnosis of Rhadinobracon is revised along with a taxonomic key to the extant species.

Additions to the knowledge of Taeniogonalos Schulz, 1906 (Hymenoptera: Trigonalyidae) from India with the description of a new species from Western Ghats.

A new species of Taeniogonalos Schulz, namely, Taeniogonalos dhritiae Girish Kumar & Hegde sp. nov., is described from the Western Ghats, India. A revised key to Indian species is provided.

Additions to the knowledge on the genus Tiphia Fabricius (Hymenoptera: Tiphiidae: Tiphiinae) from India with the description of ten new species.

The genus Tiphia Fabricius from India was studied, resulting in the description and illustration of five new species based on females, Tiphia (Tiphia) bijui Hanima & Girish Kumar sp. nov., T. (T.) novus Hanima & Girish Kumar sp. nov., T. (T.) rajeevani Hanima & Girish Kumar sp. nov., T. (T.) sahyadriensis Hanima & Girish Kumar sp. nov., and T. (T.) venkataramani Hanima & Girish Kumar sp. nov., and five new species based on males, T. (Punctotiphia) chareshi Hanima & Girish Kumar sp. nov., T. (T.) davidrajui Hanima & Girish Kumar sp. nov., T. (T.) hyalina Hanima & Girish Kumar sp. nov., T. (T.) kurumba Hanima & Girish Kumar sp. nov., and T. (T.) shajii Hanima & Girish Kumar sp. nov., from India. The male of T. lyrata Magretti, is newly reported with descriptions and illustrations. Seven species are reported for the first time from India. Range extensions of several species to various states of India are also augmented here. The male genitalia of 16 species were dissected and studied. A modified key to species of Tiphia from the Indian subcontinent is provided. An updated distributional checklist from India is also provided.

A review of digger wasp genus Harpactus Shuckard, 1837 (Hymenoptera: Crabronidae) of the Indian subcontinent, with description of a new species and rediscovery of Harpactus impudens (Nurse, 1903).

The digger wasp genus Harpactus Shuckard (Crabronidae: Bembicinae) of the Indian subcontinent is reviewed, resulting in the discovery of a new species H. pulawskii Binoy & Girish Kumar and the rediscovery of H. impudens (Nurse) after more than a century since its description. All species are illustrated, including the holotypes of H. ornatus F. Smith and H. vividus (Turner) whose illustrations were provided by the Natural History Museum, London (NHMUK). Brief diagnoses and a key to species are also given.

A taxonomic study of Methocha Latreille (Hymenoptera: Tiphiidae: Methochinae) from India with description of three new species.

The genus Methocha Latreille (Hymenoptera: Tiphiidae) from India was studied, resulting in the description of a new species based on females, Methocha krombeini Hanima, Girish Kumar Binoy sp. nov., and two new species based on males, M. paraceylonica Hanima, Girish Kumar Binoy sp. nov., and M. shyamagatra Hanima, Girish Kumar Sureshan sp. nov. from India. A key to species of Methocha occurring in the Indian subcontinent is provided.

Additions to the knowledge on the genus Philanthus Fabricius, 1790 (Hymenoptera: Crabronidae: Philanthinae) from the Indian subcontinent.

Additional information on the genus Philanthus Fabricius from the Indian subcontinent is provided, with a key to species. Two new synonymies are proposed: Philanthus avidus Bingham, 1896 and P. scrutator Nurse, 1902 are synonymised under P. basalis F. Smith, 1856. P. nepalensis Bingham and P. triangulum Fabricius are reported for the first time from India. The distribution data of P. basalis F. Smith, P. dentatus Cameron, P. depredator F. Smith, P. pulcherrimus F. Smith, and P. ramakrishnae Turner within various states of India are augmented.

A review of the genus Spilomena Shuckard (Hymenoptera: Crabronidae) with the description of six new species from India.

The Indian species of Spilomena Shuckard are reviewed resulting in the description of six new species viz., S. attenboroughi Tessy, Sureshan et Binoy, S. fulvopleuris Tessy, Sureshan et Binoy, S. reticularis Tessy, Sureshan et Binoy, S. sahyadriensis Tessy, Sureshan et Girish Kumar, S. tsunekii Tessy, Sureshan et Girish Kumar, and S. tuberculata Tessy, Sureshan et Girish Kumar, all from Southern India. A key to Indian species of Spilomena is provided.

Review of Indian Dasyproctus Lepeletier amp; Brullé 1835 (Hymenoptera: Crabronidae) with description of four new species.

The Indian species of the genus Dasyproctus Lepeletier Brullé (Crabroninae: Crabronini: Crabronina) are reviewed resulting in the descriptions of four new species viz., D. attenboroughi, D. leclercqi, D. niger, and D. tsunekii. Keys to both sexes of Indian Dasyproctus are provided. Comparisons within D. buddha (Cameron) and D. agilis species groups allowed the withdrawing of Crabro (=Dasyproctus) idrieus Cameron from synonymy and raising D. agilis orientalis (Cameron) to full species status. Dasyproctus amplicarinalis Yue Ma, 2021 is synonymized with D. idrieus (Cameron, 1901) and D. hainanensis Yue Li, 2021 with D. geethae Binoy Girish Kumar, 2021.

A review of the mud-dauber wasps of genus Sceliphron Klug (Hymenoptera: Sphecidae) from India.

The mud-dauber wasp genus Sceliphron Klug (Hymenoptera: Sphecidae) is reviewed, with six species and six subspecies reported from various parts of India. The Palaerctic species, S. destillatorium (Illiger), is recorded for the first time from the Indian subcontinent. The subspecies S. madraspatanum formosanum van der Vecht is also recorded for first time from the Indian subcontinent. The distribution records of species and subspecies within various states of India are augmented. A modified key to the species of Sceliphron occurring in India is provided. Intraspecific variation within nominal species is discussed.

A review of the genus emTzustigmus/em Finnamore (Hymenoptera: Crabronidae: Pemphredoninae) from India with the description of a new species.

The genus Tzustigmus Finnamore (Crabronidae: Pemphredoninae) from India is reviewed and a modified key to the world species is provided. A new species T. sahyadriensis Tessy, Girish Kumar Sureshan sp. nov., from Kerala is described and illustrated.

A new species of square-headed wasp Dasyproctus Lepeletier amp; Brullé (Hymenoptera: Crabronidae: Crabronini) from India, with notes on its biology.

Dasyproctus geethae Binoy Girish Kumar sp. nov. is described with illustrations of both sexes, and of preimaginal stages with notes on its biology and ethology. New prey records of Diptera of the families Drosophilidae, Hybotidae, Stratiomyidae and Dolichopodidae are recorded for the genus.

Discovery of the digger wasp genus Argogorytes Ashmead, 1899 (Hymenoptera: Crabronidae: Bembicinae) in India and description of a new species.

The digger wasp genus Argogorytes Ashmead, 1899 is newly reported from India with two species: A. pulawskii Girish Kumar Dubey sp. nov. from Andaman Islands and A. tonkinensis (Yasumatsu, 1943) from the States of Chhattisgarh and Kerala. Argogorytes tonkinensis (Yasumatsu, 1943) is redescribed. A key to Argogorytes species reported from the Indian subcontinent is provided.

Additions to the knowledge on the genus Carinostigmus Tsuneki (Hymenoptera: Crabronidae: Pemphredoninae) from the Indian subcontinent with the description of two new species.

The genus Carinostigmus Tsuneki, 1954 is reviewed from the Indian subcontinent. Two new species, viz. C. parliensis Tessy, Sureshan Girish Kumar, sp. nov. and C. nepalensis Tessy, Sureshan Girish Kumar, sp. nov. are described from India (Maharashtra and Uttarakhand) and Nepal (Bagmati Pradesh), respectively and differences from similar species are also given. A modified key to species of Carinostigmus from the Indian subcontinent is provided. Records for the other six species in the genus known from the Indian subcontinent are also provided.

Additions to the knowledge of the Tribe Alyssontini (Hymenoptera: Crabronidae: Bembicinae) in India with description of two new species of the genus Alysson Panzer.

Two new species of the genus Alysson Panzer, namely, A. bengalensis Girish Kumar sp. nov. and A. himachalensis Girish Kumar sp. nov. are described from the Indian Himalayas. Alysson triangularis Krombein, 1985 is reported here for the first time from India. Analysson rufescens Krombein, 1985 is reported here for the first time from Chhattisgarh and Jharkhand. A key to species of Alysson of the Indian subcontinent is provided.

First report of the genus Kohliella Brauns, 1910 (Hymenoptera: Crabronidae: Crabroninae) from India with the species K. anula Pulawski, 1991 from Kerala.

The digger wasp genus Kohliella Brauns, 1910, a member of the tribe Larrini, subfamily Crabroninae of the family Crabronidae, is a rarely occurring genus comprising only three known species worldwide (Pulawski 1991; 2020). The genus has been recorded from the Ethiopian (South Africa and Zimbabwe; two species) and Oriental (Sri Lanka; one species) regions. Brauns (1910) erected the genus based on the type species Kohliella alaris from South Africa. The genus is characterized by a V-shaped swelling on the frons, an oblong tubercle on the mandible and a petiolate third submarginal cell of the forewing (Bohart Menke 1976; Pulawski 1991). The nesting habits are known only for Kohliella alaris. Gess and Gess (1980) studied the life history of this species. It preys on nymphal tree cricket Oecanthus filiger Walker, and nests in the ground in flat, sandy areas with sparse vegetation; nests are constructed prior to hunting. In this paper, Kohliella anula Pulawski, 1991, previously known from Sri Lanka only, is recorded for the first time from India.

A new species of Foenatopus Smith (Hymenoptera: Stephanidae) from Andaman Islands, India.

The family Stephanidae Leach, 1815, is cosmopolitan, yet a group of infrequently encountered parasitoids with 364 described extant species in 13 genera (Aguiar et al. 2010; Binoy et al. 2020) and nine species in four extinct genera (Aguiar 2004; Aguiar et al. 2013; Engel Huang 2017) worldwide. The Indian Stephanidae was recently revised (Binoy et al. 2020), recognising a total of 30 species in four extant genera viz., Foenatopus Smith, Megischus Brullé, Parastephanellus Enderlein and Stephanus Jurine.

Review of the aberrant spider wasp genus Irenangelus Schulz (Pompilidae: Ceropalinae) from the Indian subcontinent with the description of a new species.

The little-known spider wasp genus Irenangelus Schulz, 1906 (Hymenoptera: Pompilidae) is studied from the Indian subcontinent. A new species, I. acuminatus Binoy Girish Kumar, sp. nov., is described with illustrations from India (Rajasthan). Diagnosis of species occurring in the Indian subcontinent, key to species and a distribution map are provided.