Review of the genus Pleurotroppopsis Girault (Hymenoptera: Eulophidae) with interspecific phylogenetic relationships based on morphological characters Author Cao, Huan-Xi National Animal Collection Resource Center, Institute of Zoology, Chinese Academy of Sciences, 1 Beichen West Road, Chaoyang District, Beijing, 100101, P. R. China. & Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, 1 Beichen West Road, Chaoyang District, Beijing, 100101, P. R. China. Author Dale-Skey, Natalie 0000-0001-7582-0386 Insects Division-Hymenoptera section, The Natural History Museum, Cromwell Road, London, SW 7 5 BD, United Kingdom. n. dale-skey @ nhm. ac. uk; https: // orcid. org / 0000 - 0001 - 7582 - 0386 n.dale-skey@nhm.ac.uk Author Burwell, Chris J. 0000-0003-2194-4062 Biodiversity Program, Queensland Museum, PO Box 3300, South Brisbane BC, Queensland 4101, Australia. chris. burwell @ qm. qld. gov. au; https: // orcid. org / 0000 - 0003 - 2194 - 4062 chris.burwell@qm.qld.gov.au Author Zhu, Chao-Dong 0000-0002-9347-3178 Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, 1 Beichen West Road, Chaoyang District, Beijing, 100101, P. R. China. & University of Chinese Academy of Sciences, No. 19 A Yuquan Road, Shijingshan District, Beijing, 100049, P. R. China. Corresponding author. zhucd @ ioz. ac. cn; https: // orcid. org / 0000 - 0002 - 9347 - 3178 zhucd@ioz.ac.cn text Zootaxa 2022 2022-09-30 5190 4 451 484 journal article 156947 10.11646/zootaxa.5190.4.1 5f99533f-1089-4e66-9cdf-26bd6d9a6ae2 1175-5326 7138395 BAF2CA9A-A295-4E63-B3CD-E5B8FA24F57F Pleurotroppopsis lankensis ( Kerrich, 1974 ) ( Fig. 10 ) Cotterellia lankensis Kerrich, 1974: 678 . Holotype ♀ , NHMUK (B.M. TYPE HYM. 5.2347, examined). Pleurotroppopsis lankensis ( Kerrich, 1974 ) , Bouček, 1988: 711 . Diagnosis. FEMALE. Antenna brown except scape predominantly white,brown in apical 1/4.Protibia predominantly dull metallic, mesotibia predominantly white with dusky base, and metatibia entirely whitish; all tarsomeres white except for blackish claws ( Fig. 10a ). Fore wing broadly infuscate below MV, with speculum reduced. Frontovertex with raised reticulation, and with a very fine median groove extending from anterior ocellus to frontal carina. Face between frontal carina and toruli weakly depressed; upper margin of scrobes not incised in the middle and hence frontal carina straight. Ocelli in a slightly obtuse-angled triangle. MLM with engraved transverse reticulation, and with a broad median groove extending nearly to pronotal collar ( Fig. 10b ). Scutellum with engraved transverse striation in anterior 1/2 and engraved reticulation in posterior 1/2; scutellum with sublateral and posterior grooves expressed as punctures ( Fig. 10b ). Axilla polished anteriorly and with only one seta ( Fig. 10b ). Dorsellum polished. Propodeum with submedian areas polished in anterior 1/2 and with raised reticulation in posterior 1/2; spiracular areas smooth even along posterior margin ( Fig. 10b ). Gt 1 dorsal surface polished ( Fig. 10a ). Metafemur without teeth along ventral margin. MALE. Differs from female in the following characters. Scape dark brown and swollen. Wings hyaline. Mid and hind legs with tibiae entirely white, fore leg with tibia brown. Mesoscutum and scutellum with very weak reticulation. Scutellum with posterior groove reduced, almost absent. Propodeum with submedian areas smooth, without reticulation along posterior margin. Gastral tergites with a few setae only, and not punctate. Material examined. Type material. Holotype ♀ , Sri Lanka , 6.VI.1972 , ex. larva or pupa Promecotheca cumingi ( NHMUK , B.M. TYPE HYM. 5.2347); paratypes 3♀ , same data as holotype ( NHMUK ). Other material examined. 1♂ , same data as holotype ( NHMUK ) ; 1♀ , CHINA , Hainan , det. Bouček ( NHMUK ) ; 1♀ , Sri Lanka , 7°57’N 80°46’E , Sigiriya, 21.III.1999 , coll. C.J. Burwell ( QMB ) . Biology. The type specimens of P. lankensis were recorded from Promecotheca cumingi Baly ( Coleoptera : Chrysomelidae : Hispinae ). Distribution. China : Hainan (new distribution record); Sri Lanka . Remarks. Pleurotroppopsis lankensis is characterized by the hind legs having completely white tibiae. The result of the parsimony analysis groups this species with the clade formed by P. japonica , P. maculatipennis , and P. nitifrons , with a high bootstrap value, thus supporting their possible close relationship. However, because of insufficient nonhomplasious changes between these branches, the putative relationship requires testing with molecular data ( Fig. 19 ). In addition to its white hind tibiae, P. lankensis is differentiated from the other three species by having a distinct median groove on the MLM and a posterior groove on the scutellum. See also remarks under P. nitifrons .