Fairy moths of the genus Nemophora Hoffmannsegg, 1798 (Lepidoptera: Adelidae) of India and Sri Lanka Author Kozlov, Mikhail V. text Zootaxa 2023 2023-06-07 5300 1 1 81 http://dx.doi.org/10.11646/zootaxa.5300.1.1 journal article 54308 10.11646/zootaxa.5300.1.1 b8577b95-8eb3-4882-9d37-59bda2bbe0d6 1175-5326 8012772 BE92774A-302E-4F18-ABC0-6C3AFD05802F Nemophora tenuitella Kozlov , sp. nov. ( Figs. 15 , 77 , 116 , 147 ) LSID urn:lsid:zoobank.org:act: 2412966C-CA73-4811-9E3D-936353E5A09B Holotype ♁: India , Bengal, Darjeeling ( 27°02′ N , 88°16′ E ); labeled: 8 mm circle with red border, print ‘Holo-│type’; 5 × 14 mm , black ink ‘Darjeiling │ 1865’; 8 × 13 mm , black ink ‘Atkinson │ 1865’; 6 × 12 mm , print ‘Stainton Coll. │ Brit. Mus. │ 1893‒134.’; 8 × 12 mm , print ‘B. M. │ Genitalia slide │ No. 31812’; 7 × 16 mm , print ‘HOLOTYPE ♁ │ Nemophora │ tenuitella Kozlov’ ( NHM ) . Paratype ♁, labeled: 8 mm circle with yellow border, print ‘Para- │ type’; 4 × 7 mm , black ink ‘Khas[i]. H[ills]. │ 7‒8.[18]99’; 6 × 15 mm , black ink ‘ Adela │ tenuatella’; 7 × 16 mm , print ‘ PARATYPE ♁ │ Nemophora │ tenuitella Kozlov’ ( MNHN ). Diagnosis. Nemophora tenuitella is nearest to N. diakonoffi Kozlov, 2023 (replacement name for the junior subjective homonym N. divina Diakonoff, 1951 , described from Indonesia ), from which it differs by the deep orange-ochreous vertex, longer vinculum and the absence of two slender curved apical hooks at the tip of phallus. Nemophora tenuitella also resembles N. mediangusa Sun et Li, 2023 , from which it differs by the angulate (bent at 90‒100 degrees) external silver band in the forewing fascia, longer PLB, shorer male antenna (relative to FWL) and thin and bifurcate apical part of phallus, which lacks hook-shaped structures characteristic for N. mediangusa . Description. Male ( Fig. 15 ). FWL 6.8‒7.2 mm , WLR 0.26. Vertex ochreous; frons glossy bronze, with a row of yellow hair-like scales above antennal sockets. PLB 1.0 × vertical eye diameter (0.9‒1.0 × length of scape), pale yellow, with sparse raised hair-like scales that are yellow at base of palpus and brown at apical segment. Proboscis brown, base covered with yellow scales. Eyes not enlarged; interocular index 0.60‒0.75. Antenna 3.3 × FWL; pegs present. Scape bronze dorsolaterally, yellow ventrally; flagellum bronze basally to brownish grey apically. Tegulae and thorax dark bronze to coppery bronze. Forewing ( Fig. 77 ) bright yellow; costal margin with bronze stripe; basal part with two longitudinal silver stripes along RS and CuP stems and with four thin dark brown lines parallel to these stripes; dorsal margin widely suffused with brown scales. Internal margin of yellow transverse band nearly straight, reaches costa at 0.48 × FWL; on both sides, this band bordered by ochreous bands followed by silver-grey bands. The external silver bands bent at angle of 90‒100 degrees; not interrupted in the middle. Apical part of forewing dark brown, with seven yellow longitudinal stripes almost reaching wing margins. Fringe bronze to brown. Hindwing brown; costal area grey; fringe brown to grey. Legs coppery brown dorsally, yellow ventrally. Epiphysis at 0.55, almost reaching apex of tibia. Abdomen bronze. Female unknown. Male genitalia ( Figs. 116 , 147 ). Tegumen widely dome-shaped, without medial ridge. Socii elongate, 1.0 × diameter of aedeagus. Vinculum 2.2 × length of valva, with nearly straight margins. Tip of tegumen extends beyond tips of valvae. Basal 0.6 of valva wide, rounded; dorsal margin gently W-shaped; tip narrowly rounded. Valvae fused basally up to 0.3 × total length; their internal margins distinct. Anellus 0.3 × length of valva, medially with distinct incess. Transtilla with short medial process. Juxta 0.65 × length of phallus; arrow head narrow (WLR 0.4), with narrowly rounded tip and short rounded lateral arms. Phallus 1.1 × length of vinculum, bent at 0.8 of total length (see from the side); distal part directed posteroventrally, consists of shorter dorsal lobe and longer ventral lobe; base of aedeagus funnel-shaped. Distribution . India (Bengal, Meghalaya ). Etymology. The specific epithet is derived from tenuis (Latin: delicate, little, slender, fine) and refers to narrow forewing with well-elaborated pattern.