Diagnostics of Manitisheria gen. nov., an Old-World genus of leaf-mining Tischeriidae, composed of new species and species formerly in Tischeria Zeller Author Stonis, Jonas R. Institute of Ecology, Nature Research Centre, Akademijos St. 2, LT- 08412, Vilnius, Lithuania. Author Diškus, Arūnas 0000-0003-0106-5546 Institute of Ecology, Nature Research Centre, Akademijos St. 2, LT- 08412, Vilnius, Lithuania. & diskus. biotaxonomy @ gmail. com; https: // orcid. org / 0000 - 0003 - 0106 - 5546 diskus.biotaxonomy@gmail.com Author Solis, M. Alma 0000-0001-6379-1004 Systematic Entomology Laboratory, ARS, USDA, National Museum of Natural History, Smithsonian Institution, Washington, D. C., 20013 - 7012, USA. & alma. solis @ usda. gov; https: // orcid. org / 0000 - 0001 - 6379 - 1004 alma.solis@usda.gov Author Monro, Alexandre K. Royal Botanic Gardens, Kew, Richmond, Surrey TW 9 3 AE, London, United Kingdom. & a. monro @ kew. org; https: // orcid. org // 0000 - 0003 - 4013 - 3804 a.monro@kew.org text Zootaxa 2021 2021-04-22 4964 2 251 287 journal article 7078 10.11646/zootaxa.4964.2.2 09c56e41-a1c0-48e0-acba-543a259ad939 1175-5326 4709284 F47CFAFA-8C8E-4728-A52E-5B2EDAF8A05B 15. Manitischeria brachiata Diškus & Stonis , sp. nov. urn:lsid:zoobank.org:act: 28515B35-2998-4D8A-8750-997BED4F3C12 ( Figs. 13–18 , 29–32 , 74–84 ) Type material. Holotype : ♂ , CAMBODIA : Siem Reap Province , Siem Reap , 13°27’33”N , 103°52’01”E , elevation 40 m , feeding larvae 15.ii.2015 , ex pupa ii.2015 , field card no. 5187, A. Diškus , genitalia slide no. AD 895♂ ( ZIN ). Diagnosis. Externally, M. brachiata sp. nov. can be confused with other speckled Tischeriidae species. In the male genitalia, the unique, branched juxta ( Fig. 77 ) distinguishes the new species from all known congeneric species. Male ( Figs. 29–32 ). Forewing length 2.8 mm ; wingspan 6.0 mm (n = 1). Palpi cream; frons pale brown, distally and laterally cream; pecten grey-brown; frontal tuft brown, comprised of slender lamellar, cream-tipped scales; collar brownish cream; antenna longer than one half the length of forewing; flagellum brownish cream. Tegula and thorax ochre-cream. Forewing ochre cream, with two irregular and ill-defined patches of grey-black and black scales along costal margin and two spots along dorsum; fringe yellowish cream; fringe line present, comprised of brown-black scales; forewing underside grey-brown, without spots or androconia. Hindwing grey-brown on upper side and underside; fringe dark grey-brown. Legs covered with dark brown scales on upper side, brown cream on underside. Abdomen dark brown on upper side, grey-brown on underside; genital plates cream to brown; anal tufts cream, long. Female . Unknown. Male genitalia ( Figs. 74–84 ) with capsule 305 µm long, 170 µm wide. Uncus comprised of two long lobes ( Figs. 78–80 ). Diaphragm with an inner bulge ( Figs. 81, 82, 84 ). Valva sinuous ( Fig. 74 ); lateral arm with a group of pectens distally ( Figs. 79, 83 ). Juxta with median and lateral branches ( Figs. 75, 77 ). Vinculum with a median, triangular, distally rounded ventral lobe ( Figs. 74, 75 , 79 ). Phallus ( Figs. 74, 75 , 79 ) with long, lateral arms apically. Bionomics ( Figs. 13–18 ). Host plant is Helicteres Pluk. Ex L. sp. , Malvaceae ( Figs. 13, 14 ). Larvae mine leaves in February. Larva greenish grey, with a dark brown head. The mine ( Figs. 15–18 ) is a sinuous, gradually widening gallery, with some greenish grey frass only at the beginning ( Fig. 16 ). Adults occur in late February. Distribution . This species is known from the single locality in Cambodia , Siem Reap Province , at elevation 40 m , but the host plant has a much wider distribution. Etymology. The species name is derived from the Latin brachiatus (branched), for the strongly branched juxta in the male genitalia.