Nemophora yeni Kozlov, 2024

Kozlov, Mikhail V., 2024, Fairy moths of the genus Nemophora Hoffmannsegg, 1798 (Lepidoptera: Adelidae) from Myanmar, Thailand, Laos, Cambodia and Vietnam, Zootaxa 5423 (1), pp. 1-66 : 46

publication ID	https://doi.org/ 10.11646/zootaxa.5423.1.1
publication LSID	lsid:zoobank.org:pub:622D5264-DBE2-463B-9A8C-AD1C77C90254
persistent identifier	https://treatment.plazi.org/id/4DC1EA72-4946-44EB-8F79-3AA5D51EB552
taxon LSID	lsid:zoobank.org:act:4DC1EA72-4946-44EB-8F79-3AA5D51EB552
treatment provided by	Plazi
scientific name	Nemophora yeni Kozlov
status	sp. nov.

Treatment

Nemophora yeni Kozlov , sp. nov.

urn:lsid:zoobank.org:act:4DC1EA72-4946-44EB-8F79-3AA5D51EB552

( Figs. 55–57 View FIGURES 49–56 View FIGURES 57–62 , 85 View FIGURES 63–88 , 107 View FIGURES 106–110 )

Holotype ♂: Taiwan, Yilan County, Fushan (24° 46' N, 121° 35' E); labelled: 8 mm circle with red border, print GoogleMaps ‘ Holo- │ type’; 6 × 13 mm, print ‘ Fushan , Ilan Co. │ TAIWAN, II-18- │ 1993, Y.B. Fan’; 6 × 14 mm, print ‘ HOLOTYPE ♂ │ Nemophora │ yeni Kozlov’ ( NMNST) [examined] . Paratypes. 1 ♂, 7 × 18 mm, print ‘ TAIWAN, Prov. Ilan, 1550 m │ Suyuan, near Pinan │ at the road 7/1, 29.III.1997 │ leg. Csorba & Ronkay’; 8 × 18 mm, red paper, black ink ‘ PARATYPE ♂ │ Nemophora │ yeni Kozlov │ in litt. 2000’. 1 ♂, pencil, ‘ Vietnam 1900 m │ 13.3.1998 ’; 8 × 18 mm, red paper, black ink ‘ PARATYPE ♂ │ Nemophora │ yeni Kozlov │ in litt. 2000’ (both in HNHM) [examined] . 1 ♀, yellow paper, 7 × 16 mm, print ‘ Vietnam, Sa Pa │ Fan Si Pang Mts │ 25.– 30.3.1995 │ leg. W. MEY’; 7 × 15 mm, print ‘ PARATYPE ♀ │ Nemophora │ yeni Kozlov’ ( ZMB) [examined] . 1 ♀, 9 × 20 mm, print ‘ TAIWAN: Kaohsiung Co. │ Taoyuan, Chuyuenshan- │ lindao- Tengiyer , 2,150m │ 19.5.1996, S. H. Yen leg.’; 6 × 14 mm, print ‘ PARATYPE ♀ │ Nemophora │ yeni Kozlov’ ( NMNST) [examined] .

Nemophora raddei View in CoL (misidentification): Liao et al. 2023: 75–76, 106 pl. 8 fig. 10 (colour photograph of male), 130 pl. 20 fig. 4 (photograph of male genitalia).

Diagnosis. Nemophora yeni is most similar to N. raddei ( Rebel, 1901) , from which it differs by the brown forewing colour, presence of multiple (usually seven) small glossy grey spots with black border at forewing margin between RS4 and CuA2 veins, male compound eyes touching (or nearly touching) each other occipitally, extraordinary scale-thickening in the basal part of female antenna, large lobe at the middle of the ventral margin of valva, and long anellus.

Description. Male ( Fig. 55 View FIGURES 49–56 ). FWL 7.8–9.0 mm, WLR 0.31–0.35. Vertex grey (covered by a mixture of pale yellow and black piliform scales); frons naked, shining grey, marginally with mixture of pale yellow and black piliform scales. PLB 1.3–1.5 × vertical eye diameter (2.4 × length of scape), protracted, grey, densely covered with mixture of raised long pale yellow and black hairs ( Fig. 56 View FIGURES 49–56 ). Proboscis light brown. Eyes enlarged; interocular index 1.0–1.1; occipital distance 0–0.01. Antenna 2.2–2.4 × FWL, with simple inwardly directed pegs; scape brown ventrally and black dorsally; entire flagellum black dorsally and white (or light yellowish grey) ventrally. Tegulae and thorax dark brown. Forewing ( Fig. 85 View FIGURES 63–88 ) brown, with slight ochreous tint; variable pattern consists of multiple silver-grey, dark bordered short transverse stripes forming 7 to 9 broken lines in basal part of forewing, 3–5 longitudinal stripes (along veins M1 to CuA2) in apical part of forewing, and 6–8 spots along wing margin around the apex, between RS4 and CuA2 veins. Fringe ochreous brown. Hindwing brown, costa pale yellow, fringe brownish grey; R and M1 stalked. Legs dark brown; each segment on both sides with narrow line of bright yellow scales. Epiphysis at 0.65–0.70, reaching apex of tibia. Abdomen dark brown; tip (genital capsule) ventrally with a tuft of yellow scales.

Female ( Fig. 57 View FIGURES 57–62 ). FWL 7.7–8.4 mm. Frons marginally with mixture of brown and black piliform scales. Antenna>1.0 × FWL (tip broken); basal part of flagellum (up to 0.6 × FWL) densely covered by semi-erect brown piliform scales, forming extraordinarily long scale-thickening; distal part of flagellum dark brown to black, with distinct white rings on each flagellomere. Otherwise similar to male.

Male genitalia ( Fig. 107 View FIGURES 106–110 ). Tegumen onion-shaped, without medial ridge. Socii elongate, 1.2 × diameter of phallus. Vinculum 2.6 × length of valva, widely V-shaped, with almost straight lateral margins and gently W-shaped distal margin. Tip of tegumen extends beyond tips of valvae. Ventral margins of valvae at 0.5–0.6 × valvar length with prominent ventroposteriorly directed lobes (see from side); dorsal valvar margin almost straight; tip of valva narrowly rounded. Valvae fused basally up to 0.2 × total length; internal valvar margins indistinct. Anellus 0.7–0.8 × length of valva. Transtilla with long narrow medial process. Juxta 0.50 × length of phallus; arrow head extremely wide (WLR 0.8), with rounded tip and short pointed lateral arms. Phallus 0.9–1.0 × length of vinculum, S-shaped (see from side); apical part (ca. 0.35 × length of phallus) bifurcate; base of phallus funnel-shaped.

Distribution. Continental China ( Liao et al. 2023), Taiwan ( Liao et al. 2023), Vietnam (this study).

Etymology. The species is named after Shen-Horn Yen, a prominent lepidopterologist who collected one of paratypes.