Nemophora chrysidias ( Meyrick, 1928 ) Kozlov, 2023

Kozlov, Mikhail V., 2023, Fairy moths of the genus Nemophora Hoffmannsegg, 1798 (Lepidoptera: Adelidae) of India and Sri Lanka, Zootaxa 5300 (1), pp. 1-81 : 49

publication ID	https://doi.org/ 10.11646/zootaxa.5300.1.1
publication LSID	lsid:zoobank.org:pub:BE92774A-302E-4F18-ABC0-6C3AFD05802F
DOI	https://doi.org/10.5281/zenodo.8027335
persistent identifier	https://treatment.plazi.org/id/03B387CB-FA27-FFD8-2AED-1888E938F943
treatment provided by	Plazi
scientific name	Nemophora chrysidias ( Meyrick, 1928 )
status	comb. nov.

Treatment

Nemophora chrysidias ( Meyrick, 1928) View in CoL , comb. nov.

( Figs. 63 View FIGURES 63–68 , 106 View FIGURES 93–108 , 137 View FIGURES 134–139 , 167 View FIGURES 167–169 )

Nemotois chrysidias: Meyrick 1928: 463 View in CoL .

Holotype ♁: India, Meghalaya, Khasi Hills (approx. 25 o 35′ N, 91 o 36′ E); labelled: 8 mm circle with red border, print ‘Holo-│type’; 4 × 9 mm, print + black ink ‘Khasi Hills, │ Assam. │ 1925’; 13 × 14 mm, black ink + print ‘ Nemotois │ chrysidias │ 1/1 Meyr. │ E. Meyrick det. │ in Meyrick Coll.’; 6 × 13 mm, print ‘Meyrick Coll. │ B. M. 1938–290’; 3 × 21 mm, black ink ‘ chrysidias Meyr. ’; 8 × 13 mm, print ‘B. M. │ Genitalia slide │ No. 31283’ (NHM) [examined].

Nemotois chrysidias: Clarke 1955: 88 View in CoL .

Diagnosis. Nemophora chrysidias externally resembles N. costimaculella ( Fig. 67, 68 View FIGURES 63–68 ) and N. athlophora ( Figs. 64‒ 66 View FIGURES 63–68 ), from which it differs by the uniformly yellow dorsal half of the forewing base, the four glossy silver spots situated in the costal half of the forewing base and not bordered by dark brown scales, the U-shaped vinculum, the proximal part of which is about of the same width as its distal part, and by the anchor-shaped tip of phallus, with three arms directed anteriorly.

Description. Male ( Fig. 63 View FIGURES 63–68 ). FWL 5.8 mm, WLR 0.34. Vertex ochreous brown; frons glossy silver. PLB 0.5 × vertical eye diameter (0.7 × length of scape), light yellowish brown. Proboscis light brown. Eyes slightly enlarged; interocular index 1.0; occipital distance 0.6. Scape and base of flagellum bronze; scape with indistinct yellow spot on internal surface; at about 0.6 × FWL colour sharply turns to light yellow. Tegulae coppery bronze; thorax glossy golden. Forewing ( Fig. 106 View FIGURES 93–108 ) bicoloured: basal half yellow, with two glossy silver spots at costa and two almost indistinct light bronze spots along M stem; apical half dark coppery bronze, scattered with dark brown scales tending to form a diffuse band along the border between differently coloured parts of forewing and a diffuse tornal spot. Fringe bronze to dark brown. Hindwing bronze; costal area grey; fringe brown. Legs bronze; bases of all tarsomeres light yellowish brown. Epiphysis at 0.5, reaching apex of tibia. Abdomen dark brown dorsally, bronze ventrally.

Female unknown.

Male genitalia ( Figs. 137 View FIGURES 134–139 , 167 View FIGURES 167–169 ). Tegumen dome-shaped, with prominent medial ridge. Socii elongate, 1.0 × diameter of phallus. Vinculum 2.6–2.7 × length of valva, U-shaped, with nearly parallel lateral margins, in proximal part of about same width as in distal part; distal margin almost straight, with small medial protuberance. Tips of valvae are at about same level as tip of tegumen. Ventral margin of valva concave; basal part of valva (0.55 × valvar length) nearly twice as wide as distal part, medially with prominent protuberance; dorsal valvar margin sharply bent near apex; tip of valva rounded. Valvae not fused to each other. Anellus 0.4 × length of valva. Transtilla with very long medial process. Juxta 0.45 × length of phallus; arrow head extremely wide (WLR 1.0), with rounded tip and pointed lateral arms. Phallus 1.0 × length of vinculum, gently S-shaped; tip anchor-shaped, with three arms directed anteriorly; base narrowly funnel-shaped.

Distribution. India (Meghalaya).