Revision of Trigastrotheca Cameron (Hymenoptera, Braconidae, Braconinae) with descriptions of 13 new species.

The Old World braconine wasp genus Trigastrotheca Cameron is revised. The genus is recorded from the island of Madagascar for the first time based on two new species, T.christianhenrichi Quicke & Butcher, sp. nov. and T.formosa Quicke & Friedman, sp. nov. Trigastrothecagriffini Quicke, sp. nov. is described from Australia; T.aethiopica Quicke & Friedman, sp. nov. is described from Ethiopia; T.braeti Quicke & Butcher, sp. nov. is described from Congo; T.simba van Noort, sp. nov. is described from Tanzania; T.freidbergi Quicke & Friedman, sp. nov., T.carinata Ranjith, sp. nov., T.flava Ranjith, sp. nov. and T.similidentata Ranjith, sp. nov. are described from India; T.khaoyaiensis Quicke & Butcher, sp. nov., T.naniensis Quicke & Butcher, sp. nov., and T.sublobata Quicke & Butcher, sp. nov. are described from Thailand. Trigastrothecatridentata is recorded from Thailand for the first time. A putative female of T.sureeratae is described for the first time. Acroceriliatricolor Quicke & Ingram, 1993 is transferred into Trigastrotheca, as T.acroceropsis nom. nov. A key is provided for the identification of species.

Additions to the trigonalyid (Hymenoptera: Trigonalyidae) fauna of India with the description of a new species from south India.

A new species of Taeniogonalos is described and illustrated from Western Ghats, Kerala, India. The male of Taeniogonalos eurysoma Chen & van Achterberg, 2020 is described for the first time along with its first distribution record from India. The new species and T. eurysoma are illustrated along with a distribution map of Indian Taeniogonalos.

Two new genera and one new species of the tribe Adeshini (Hymenoptera, Braconidae, Braconinae) from India and South Africa.

Two new genera and one new species of the Braconinae tribe Adeshini are described and illustrated: Crenuladesha Ranjith & Quicke, gen. nov., type species Adeshanarendrani Ranjith, 2017, comb. nov. from India, and Protadesha Quicke & Butcher, gen. nov., type species Protadeshaintermedia Quicke & Butcher, sp. nov. from South Africa. The former lacks the mid-longitudinal propodeal carina characteristic of the tribe, and the latter displays less derived fore wing venation with two distinct abscissae of vein 2CU. A molecular phylogenetic analysis is included to confirm their correct placement. Since neither of the two new genera displays all of the characters given in the original diagnosis of the Adeshini a revised diagnosis is provided, as well as an illustrated key to the genera.

A new cynipid inquiline of the genus Lithosaphonecrus (Hymenoptera: Cynipidae: Synergini) from India, with an updated key to all known species.

A new species of cynipid inquiline, Lithosaphonecrus nagalandi Melika, Lobato-Vila Pujade-Villar, sp. nov. (Hymenoptera: Cynipidae: Synergini), is described from the state of Nagaland (India) reared from undescribed bud galls on an undetermined species of Lithocarpus (Fagaceae), thus being the first Lithosaphonecrus known from India. Description, diagnosis, data on phenology and host associations, and illustrations of the new species are given. An identification key to all known Lithosaphonecrus is also provided. The biology of the genus Lithosaphonecrus and the distribution range of Saphonecrus and Lithosaphonecrus in Asia and Oceania are discussed.

Major range extensions for two genera of the parasitoid subtribe Facitorina, with a new generic synonymy (Braconidae, Rogadinae, Yeliconini).

The genera Conobregma van Achterberg and Facitorus van Achterberg are recorded from the Afrotropical region and the Indian subcontinent, respectively, for the first time, and two new species are described and illustrated: Conobregma bradpitti Quicke & Butcher, sp. n. from South Africa and Facitorus nasseri Ranjith & Quicke, sp. n. from India. Conobregma bradpitti sp. n. is intermediate between Conobregma which was described originally from the New World, and Asiabregma Belokobylskij, Zaldivar-Riverón & Maetô, which was coined for the S. E. Asian and East Palaearctic (Japanese) species described under the name Conobregma, plus more recently discovered taxa, but the differences between these genera are few and slight. Of the four previously proposed diagnostic characters for separating Asiabregma from Conobregma, the new species shares two with each, and therefore, the two genera are formally synonymised. Facitorus was previously known only from the East Palaearctic region and from S. E. Asia (Japan, Nepal, Taiwan and Vietnam).