Fairy moths of the genus Nemophora Hoffmannsegg, 1798 (Lepidoptera: Adelidae) from Myanmar, Thailand, Laos, Cambodia and Vietnam Author Kozlov, Mikhail V. text Zootaxa 2024 2024-03-11 5423 1 1 66 http://dx.doi.org/10.11646/zootaxa.5423.1.1 journal article 10.11646/zootaxa.5423.1.1 1175-5334 10805789 622D5264-DBE2-463B-9A8C-AD1C77C90254 Nemophora thailandensis Kozlov , sp. nov. urn:lsid:zoobank.org:act: D2A1F1A1-147F-4900-BB93-BB70F91D8AB2 ( Figs. 27 , 74 ) Holotype ♀ : Thailand , Khao Yai National Park (15° 93' N, 99° 22' E ); labelled: 8 mm circle with red border, print ‘ Holo- │ type’; 6 × 12 mm , print ‘C. THAILAND : 720 m │ Khao Yai NP │ Park HQ │ 7.iii.1988 ’; 4 × 10 mm , print ‘ M. G. Allen │ BM 1988-162’; 8 × 20 mm , print ‘ HOLOTYPE ♀ │ Nemophora thailand- │ ensis Kozlov, 1999’ ( NHM ) [examined] . Diagnosis. Nemophora thailandensis is most similar to N. satrapodes ( Fig. 26 ), from which it differs by the presence of the internal silver-grey band in forewing fascia, narrower ochreous band of fascia, presence of small dark brown costal spot near the forewing base, smaller size and narrower forewing. In shape and position of the forewing fascia N. thailandensis resembles N . xizangensis Liao, Hirowatari & Huang in Liao et al. , 2023 , from which it differs by the indigo blue forewing colour, presence of basal spot in forewing and brown labial palpi. In forewing colour and size N. thailandensis also resembles N. punctifasciella ( Figs. 24 , 25 ) and N. nigripunctella ( Fig. 30 ), from which it differs by the absence of ochreous or dark brown to black spot at the external margin of the forewing fascia, respectively. Description . Male unknown. Female ( Fig. 27 ). FWL 5.5 mm ; WLR 0.34. Vertex dark ochreous; frons naked, marginally with dark ochreous piliform scales. PLB short, brown; apical segment dark brown. Antenna 0.95 × FWL. Scape ochreous; basal 0.65 of flagellum thickened by semi-erect scales, colour of which gradually changes from ochreous brown proximally to blackish distally; apical part of flagellum dark brown, with light ochreous rings on each flagellomere. Tegulae and thorax dark brown, with blue iridescence. Forewing ( Fig. 74 ) indigo blue, with sparsely scattered golden scales; basal spot at costal margin small, dark brown. Medial ochreous band of fascia narrow (0.15 × FWL at costa to 0.10 × FWL at dorsum); its internal margin approaches costa at 0.35 × FWL; on both sides this ochreous band is bordered by glossy silver-grey bands; dark brown lines outside silver-grey bands diffuse. Fringe dark bronze. Hindwing apically dark brown, basally grey, nearly translucent; costal area grey; light yellow costal spot nearly triangular, reaches 0.5 of hindwing width; fringe brown apically to light grey basally. Legs purplish brown to black; entire first tarsomer and distal parts of other tarsomeres pale yellow. Epiphysis at 0.5, reaching apex of tibia.Abdomen dark brown; distal halves of sternites IV–VIIlight yellowish brown. Distribution . Thailand (this study). Etymology . Named after the type locality ( Thailand ).