Nemophora atkinsonii (Moore, 1887)

Nemophora atkinsonii (Moore, 1887) View in CoL

( Figs. 32 View FIGURES 25–32 , 87 View FIGURES 69–92 )

Adela atkinsonii: Moore 1887a: 282 View in CoL .

Holotype ♁: India, West Bengal, Darjeeling ( 27 o 02′ N, 88 o 16′ E); labelled: 8 × 13 mm, black ink ‘ Adela │ atkinsoni │ Type Moore’; 8 × 19 mm, print ‘Darjeeling │ Coll. Atkinson’; 8 × 8 mm, pink paper, print ‘Origin.’; 12 × 21 mm, black bordered label, black ink ‘Atkinsonii │ Moore’; 6 × 17 mm, black ink ‘Staudinger Coll. │ Kasten 417’; 7 × 18 mm, red paper, print ‘ Holotype ♁ │ Adela atkinsonii │ Moore, 1887 │ teste M. Kozlov, 1999’ (ZMHB) [examined].

Adela atkinsonii: Cotes & Swinhoe 1887: 707 View in CoL .

Nemotois atkinsonii: Meyrick 1912a: 7, 1912b: 8 .

Nemophora atkinsonii: Das & Singh 2022: 264 View in CoL View Cited Treatment .

Diagnosis. Nemophora atkinsonii differs from all other Nemophora species recorded in India and Sri Lanka by the presence of both fascia consisting of the yellow band bordered by silver-grey bands and two transverse silver-grey stripes in the basal part of the forewing.

Description. Male ( Figs. 32 View FIGURES 25–32 ). FWL 7.7 mm, WLR 0.32. Vertex with raised piliform scales, most of which are ochreous and a few are brown; frons glossy bronze, with violet lustre. PLB 1.2 × vertical eye diameter, yellow. Proboscis light brown. Eyes enlarged, but not touching each other; interocular index 0.9; occipital index 0.7. Antenna 3.3 × FWL; pegs absent. Scape and basal part of flagellum brown, then colour of flagellum gradually changes to light brown. Tegulae and thorax bronze, with violet lustre (at least marginally). Forewing ( Fig. 87 View FIGURES 69–92 ) from ochreous basally to dark brown apically; base with light yellow longitudinal stripe along costa, which is dorsally bordered by dark brown stripe; both yellow and brown longitudinal stripes reach first transverse silver-grey stripe located at 0.25 × FWL. Second transverse silver-grey stripe located at 0.35 × FWL; these stripes reach 0.35 and 0.50 of forewing width, respectively. Fascia consists of narrow bright yellow band bordered on both sides by narrow glossy silver-grey bands; internal margin of fascia reaches costa at 0.46 × FWL. Apical part of forewing densely scattered with light yellow scales (approx. one yellow scale to two dark brown scales). Fringe brown, glossy violet at costa. Hindwing brown, with R+M1 stalked; costa yellowish-white; fringe light brown to brown. Legs light brown; distal parts of all tibiae and all tarsomeres light yellow. Epiphysis at 0.40, not reaching apex of tibia.

Female unknown.

Distribution. India ( West Bengal).

Comments. Abdomen of the holotype is missing; therefore characters of male genitalia are unknown.