A taxonomic study of Psyllaephagus Ashmead (Hymenoptera, Encyrtidae) from China Author Zou, Boyu https://orcid.org/0009-0000-5022-8669 College of Life Science and Technology, Xinjiang University, Urumqi, Xinjiang 830017, China & Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China Author Hu, Hongying https://orcid.org/0000-0002-2295-1072 College of Life Science and Technology, Xinjiang University, Urumqi, Xinjiang 830017, China Author Zhang, Lanwei https://orcid.org/0000-0002-7829-8770 College of Life Science and Technology, Xinjiang University, Urumqi, Xinjiang 830017, China & Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China Author Zhang, Yanzhou https://orcid.org/0000-0002-9713-5352 College of Life Science and Technology, Xinjiang University, Urumqi, Xinjiang 830017, China & Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China zhangyz@ioz.ac.cn text ZooKeys 2023 2023-11-23 1184 327 359 http://dx.doi.org/10.3897/zookeys.1184.109476 journal article http://dx.doi.org/10.3897/zookeys.1184.109476 1313-2970-1184-327 3FFAF34C1BC14DA7A4C3DFDC1A4DE08B A7F0913735185600957928673AC72070 Psyllaephagus colposceniae Trjapitzin, 1969 Fig. 4 Psyllaephagus colposceniae Trjapitzin, 1969: 52. Holotype ♀, Moldova (ZISP), not examined. Psyllaephagus colposceniae Trjapitzin, 1978: 236-328; 1989: 256; Myartseva 1979 : 27-33; Tang et al. 2016 : 63-78. Material examined. China - Xinjiang • 1♀ , Karamay , 23. July. 2012, by sweeping, leg. HY Hu group; 1♀ , Karamay , 28. July. 2014, by sweeping, leg. HY Hu group; 1♀ , Hami , 1.Aug.2016 , by sweeping, leg. HY Hu group; 4♀♀ , 2♂♂ , Altai , 11.Jun.2023 , ex. Colposcenia sp. on Tamarix ramosissima , leg. BY Zou. Diagnosis. Female. Body length ~ 1.0 mm; mid and hind coxae dark brown, mid tibia with a dark brown spot at base, basal 3/4 of hind femur dark brown (Fig. 4E, F ); ocelli forming angle of slightly less than 90°; all funicular segments transverse (Fig. 4A ); mesoscutum and scutellum with contrasting sculpture, sculpture on scutellum somewhat deeper than that on mesoscutum; ovipositor hidden or slightly exserted, OL ~ 1.2 x MT (Fig. 4G ). Figure 4. Psyllaephagus colposceniae ♀ A antenna B fore wing C mesonotum D fore leg E mid leg F hind leg G ovipositor. Description. See Tang et al. (2016) . Host. Colposcenia kiritshenkoi Loginova, 1960 ( Hemiptera : Aphalaridae ). Distribution. China (Xinjiang); other countries: Kazakhstan, Moldova, Turkmenistan. Comments. The specimens studied here agree well with the original description of this species, except the slight variation in dimension of F2. In some specimens here, F2 is slightly shorter than broad (see also Myartseva 1979 ). We regard this difference falls within variation of a species.