Nokona onoderai Gorbunov et Arita, 2020

Nokona onoderai Gorbunov et Arita View in CoL sp.n.

Figs 1–3 View Figs 1–3 .

MATERIAL. Holotype ♀ ( Figs 1, 2 View Figs 1–3 ) with labels: “ Vietnam: / Ninh Binh Prov., Gia Vien, / Cuc Phuong National Park / 1.VI.2016 / Shingo Onodera legit”; “ SESIIDAE / Pictures №№ / 0161-0162– 2018 / Photo by O. Gorbunov ”; “Genitalia examined / by O. Gorbunov / Preparation № / OG–028-2018”; “ HOLOTYPUS ♀ / Nokona onoderai / O. Gorbunov et Arita, 2020 / O. Gorbunov des., 2018” ( NSMT).

DESCRIPTION. Female (holotype) ( Figs 1–2 View Figs 1–3 ). Alar expanse 31.1 mm; body length 19.0 mm; forewing 13.8 mm; antenna 8.1 mm.

Head with antenna dark brown to black with dark blue-violet sheen dorsally and light brown ventrally; scapus gray with purple-bronze sheen and a few white scales ventrally; frons gray with purple-bronze sheen and a narrow white stripe laterally; vertex black with anthracite sheen; labial palpus exterior-dorsally dark gray to black with blue-purple sheen and yellow interior-ventrally; pericephalic hairs yellow dorsally and pale yellow laterally.

Thorax with patagia dark brown to black with greenish-violet sheen; tegula and mesothorax dark brown to black with violet sheen, but densely covered with brick-red to dark orange scales masking background colouration; metathorax dark brown to black with dark violet sheen and a narrow yellow to dark yellow stripe distally; thorax laterally dark grey with greenish-violet sheen and a very narrow yellow spot anteriorly at patagia; posteriorly both metepimeron and metameron dark gray with purple-bronze sheen covered with long white hairs. Legs with neck plate yellow to pale yellow; fore coxa pale yellow to yellow anteriorly and dark brown to black with greenish-violet sheen posteriorly; fore femur dark brown to black with purple sheen and a raw of elongate scales posteriorly; fore tibia dark brown to black with greenish sheen and a raw of elongate scales posteriorly; fore tarsus yellow with an admixture of black scales with greenish sheen dorsally on basal tarsomere; mid coxa dark brown to black with greenish-violet sheen and a few pale yellow scales externally; mid femur dark gray-brown with greenish-bronze sheen with pale yellow posterior margin and a small yellow spot exterior-basally; mid tibia dark brown to black with blue-violet sheen, with an oblique yellow stripe exterior-basally and yellow-orange scales distally; spurs pale yellow with an admixture of gray scales externally; mid tarsus dark brown to black with greenish-violet sheen dorsally and yellow ventrally; hind coxa pale yellow to yellow with a few dark gray scales posteriorly; hind femur dark gray-brown with greenish-bronze sheen, with pale yellow posterior margin and a small yellow spot exterior-basally; hind tibia yellow with an admixture of black scales and with a narrow longitudinal black stripe with bronze sheen exterior-distally; spurs pale yellow with an admixture of gray scales externally; basal hind tarsomere yellow both interior-ventrally and distally and dark brown to black with violet sheen exterior-dorsally; two distal tarsomeres entirely dark brown to black with greenish sheen; remaining tarsomeres dark brown to black with greenish sheen exterior-dorsally and yellow interior-ventrally. Forewing dorsally orange to dark orange posteriorly at base; all opaque parts black with dark purpleviolet sheen, some scales within anterior transparent area and somewhat distally of cross-vein with bright electric-blue lustre; transparent areas poorly developed; external transparent area undeveloped; both anterior and posterior transparent area small, covered with translucent scales with bright electric-blue lustre; ventrally opaque parts dark brown to black with dark purple and blight electric-blue lustre and an admixture of individual brick-red scales; cilia dark brown with bronze sheen. Hindwing transparent; veins, discal spot and outer margin dark brown to black with dark violet sheen, anally orange to dark orange; discal spot broad with parallel margins, reaching to vein M 3; outer margin rather broad, about thrice broader than cilia; cilia dark brown with bronze sheen.

Abdomen dorsally dark brown to black with dark violet sheen; tergite 2 with a few dark yellow scales distally; tergite 4 with an extremely broad dark yellow stripe distally; ventrally dark brown to black with dark blue-violet sheen; sternite 1+2 with a few dark yellow scales distally; sternite 4 dark yellow with an admixture of individual dark brown scales anteriorly; anal tuft small dark brown to black with dark violet sheen and an admixture of individual, hair-like, yellow scales anterior-dorsally.

Female genitalia (holotype) (genital preparation № OG– 028-2018) ( Fig. 3 View Figs 1–3 ). Papilla analis relatively narrow, well-sclerotized medially, with long setae; posterior apophyses long, about 1.2 times as long as anterior apophyses; anterior apophyses with a narrow long projection, curved caudally; tergite 8 rather broad and long, about 0.4 times longer than anterior apophyses, well sclerotized, with long setae ventrally and distally; ostium bursae opening slightly cranially of anterior margin of tergite 8, narrow, membranous; antrum short, membranous, with a narrow, well-sclerotized semi ring; ductus bursae membranous, thin, long, about twice as long as anterior apophyses; corpus bursae elongate-ovoid, with distinctly wrinkled surface.

Male. Unknown.

INDIVIDUAL VARIABILITY. Unknown.

DIFFERENTIAL DIAGNOSIS. By the presence of the brick-red scales on the abdomen this new species cannot be confused with any other congeners. From Adixoa pyromacula Fischer, 2011 (type locality: “ Thailand, Provinz Nakhon Ratchasima, Pak Chong, 400 m, Kulturland, Grenze zu Khao Yai, …” [ Fischer, 2011: 207]), N. onoderai sp.n. can be easily distinguished by the conformation of the forewing [transparent areas well-developed in the species compared, vs. transparent areas poorly developed, external transparent area undeveloped in N. onoderai sp.n.; compare Fig. 1 View Figs 1–3 with fig. 3 in Fischer, 2011: 207]. In addition, these two species differ from each other in the structure of the female genitalia [compare Fig. 3 View Figs 1–3 with fig. 4 in Fischer, 2011: 208].

BIONOMICS. The larval host plant is unknown. The holotype was collected in the beginning of June.

HABITAT. The holotype was collected by a butterfly net on a bush on the border of the rain forest.

DISTRIBUTION. The new species is known only from the type locality in the Cuc Phuong National Park in North Vietnam .

ETHYMOLOGY. This new species is named after our former student and friend Mr. Shingo Onodera ( Nagoya , Japan), who collected not only the holotype of this new species, but also many other clearwing moths .