Two new species and a new record of the Encarsia longifasciata - group (Hymenoptera, Aphelinidae) from Malaysia and China Author Geng, Hui Shangrao Normal University, Shangrao, China Author Li, Cheng-De Northeast Forestry University, Harbin, China Author Polaszek, Andrew https://orcid.org/0000-0002-7171-3353 Natural History Museum, London, United Kingdom Author Liu, Si-Zhu Chongqing University of Posts and Telecommunications, Chongqing, China liusz@cqupt.edu.cn text Biodiversity Data Journal 2022 2022-09-26 10 91069 91069 http://dx.doi.org/10.3897/BDJ.10.e91069 journal article http://dx.doi.org/10.3897/BDJ.10.e91069 1314-2828-10-e91069 049CF5EF026D51A2B590674D455A9283 Encarsia pauroseta Geng & Li sp. n. Materials Type status: Holotype . Occurrence: individualCount: 1 ; sex: female ; lifeStage: adult ; Location : country: China ; countryCode: CN; stateProvince: Yunnan ; county: Menghai ; locality: Shuijingliangzi ; Identification : identificationID: E172; identifiedBy: Geng Hui ; Li Cheng-De ; Event : year: 2014; month: February ; day: 17-19; Record Level : institutionCode: NEFU Description Female (Fig. 2 ). Holotype. Length, mesosoma plus metasoma, 0.44 mm. Head (Fig. 2 A) dark brown with pale lines; clypeus and malar space dark brown. Mesosoma and metasoma yellow with pronotum, mid-lobe of mesoscutum (Fig. 2 C) and axilla dark brown. Antennae (Fig. 2 B) pale yellow with radicle and scape dark brown. Wings (Fig. 2 D) hyaline. Legs (Fig. 2 E) pale yellow. Apex of third valvula of ovipositor dark orange. Head (Fig. 2 A) as wide as mesosoma. Maxillary and labial palps 1-segmented. Stemmaticum with irregular reticulate sculpture. Antennal formula 1,1,4,2 (Fig. 2 B); F1 1.33 x as long as wide, 0.62 x as long as pedicel, 0.67 x as long as F2. F2 1.71 x as long as wide. F1-F6 gradually longer. Flagellum with the following numbers of longitudinal sensilla: F1:0, F2:0, F3:3, F4:3, F5:3, F6:3. Mid-lobe of mesoscutum (Fig. 2 C) with two setae posteriorly, each side lobe with two setae. Axilla with one seta anteriorly. Mid-lobe of mesoscutum and scutellum with imbricate sculpture. Distance between placoid sensilla on scutellum 7 x the maximum width of a sensillum. Distance between anterior pair of scutellar setae 0.9 x as long as the distance between posterior pair. Fore wing (Fig. 2 D) 3.6 x as long as wide, sparsely setose, with a clear asetose area around stigmal vein and a wide asetose stripe along margin of disc; marginal fringe as long as width of disc; basal cell with one seta, submarginal vein with two short setae, marginal vein with four long setae along anterior margin. Hind wing 9.55 x as long as wide, marginal fringe 2.25 x as long as width of disc. Tarsal formula 5-5-5 (Fig. 2 E). Mid-tibial spur 0.52 x as long as correspond-ing basitarsus. Hind tibia 1.03 x as long as mid-tibia. Ovipositor (Fig. 2 F) 1.23 x as long as mid-tibia, 0.89 x as long as mid-tibia and basitarsus combined. Third valvula 0.72 x as long as second valvifer, 0.42 x as long as ovipositor. Diagnosis Body largely yellow, except head, pronotum, mid-lobe of mesoscutum and axilla dark brown; mid-lobe of mesoscutum and scutellum with imbricate sculpture. Fore wing (Fig. 2 D) 3.6 x as long as wide, sparsely setose, with a clear asetose area around stigmal vein and a wide asetose stripe along margin of disc, marginal fringe as long as width of disc. Ovipositor 1.23 x as long as mid-tibia; third valvula terminating in an abrupt angle. Etymology Ancient Greek παῦρος ( pauros ) small, little, referring to the sparse setation of the fore wing disc. Taxon discussion This species has unusual fore wings, the disc of which is very sparsely setose, with the maximum width as long as the maximum marginal fringe length. The remaining E. longifasciata -group species have the maximum marginal fringe length at most 0.7 x as long as maximum disc width. This species appears to be similar to E. dewa Pedata & Polaszek having the mid-lobe with two setae, but can be distinguished from the latter by the following: marginal fringe of fore wing as long as width (vs. 0.65-0.7 x ), scutellum, tegula and metasoma totally pale yellow (vs. inverted triangular patch on scutellum, tegula and sides of metasoma brown), F2 0.67 x as long as F3 and without longitudinal sensilla (vs. F2 subequal to slightly shorter than F3, with one longitudinal sensillum)，fore wing with a clear asetose area towards the apex (vs. fore wing with less asetose wing disc towards the apex).