biostudies-literatureUnknown1229Xi OBased on surveys of the superfamily Chalcidoidea (Hymenoptera) in the eastern part of Pamir Plateau from 2021 to 2023, 1770 specimens of Encyrtidae belonging to 21 species in 15 genera are identified and catalogued. Two new species, <i>Acerophagusalbuscorpus</i> Xi & Hu, <b>sp. nov.</b> and <i>Pseudectromastemmatosteres</i> Zhang & Hu, <b>sp. nov.</b>, are described and illustrated. Four species, <i>Ericydnusnovosibiricus</i> Sugonjaev & Gavrilyuk, 2012, <i>Copidosomacharon</i> Guerrieri & Noyes, 2005, <i>Aphycusslavai</i> Myartseva, 1981, and <i>Trichomasthusmarsus</i> (Walker, 1837), are newly recorded from China, and their diagnoses and illustrations are provided.ZooKeys61-75https://www.ebi.ac.uk/biostudies/studies/S-EPMC11876979biostudies-literatureTwo new species of Encyrtidae (Hymenoptera, Chalcidoidea) from the eastern Pamir Plateau, with four new records from China.PMC11876979Hu HXi OZhang SfalseTwo new species of Encyrtidae (Hymenoptera, Chalcidoidea) from the eastern Pamir Plateau, with four new records from China.Based on surveys of the superfamily Chalcidoidea (Hymenoptera) in the eastern part of Pamir Plateau from 2021 to 2023, 1770 specimens of Encyrtidae belonging to 21 species in 15 genera are identified and catalogued. Two new species, <i>Acerophagusalbuscorpus</i> Xi & Hu, <b>sp. nov.</b> and <i>Pseudectromastemmatosteres</i> Zhang & Hu, <b>sp. nov.</b>, are described and illustrated. Four species, <i>Ericydnusnovosibiricus</i> Sugonjaev & Gavrilyuk, 2012, <i>Copidosomacharon</i> Guerrieri & Noyes, 2005, <i>Aphycusslavai</i> Myartseva, 1981, and <i>Trichomasthusmarsus</i> (Walker, 1837), are newly recorded from China, and their diagnoses and illustrations are provided.2025-01-01T00:00:00Z20252025-04-03T23:35:43.068Z2025-04-03T23:35:43.068ZS-EPMC118769794004683510.3897/zookeys.1229.138920