Nemophora mediseorsa Sun & Li 2023, sp. nov.
Creators: name: Sun, Hao
name: Li, Houhun
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Adelidae
Nemophora
Nemophora mediseorsa

description: Nemophora mediseorsa sp. nov.
(Figs 6, 10)
urn:lsid:zoobank.org:act: A72CA49F-F933-43A9-849A-CAC13CF7C314
Type material. CHINA, Guangxi: Holotype ♁, Huaping, Yachang, Leye County, 3.V.2007, leg. M Wang, slide SH20197. Paratype: 1 ♁, same data as holotype.
Diagnosis. The new species can be distinguished by the vinculum having a digitate median process. It is closely allied to N. longissima sp. nov. in the forewing without a black speckle between M 2 and the termen beyond the outer fascia, and in the phallus without a process in the male genitalia. The differences between the two species are stated in the diagnosis of the latter species.
Description. Adult (Fig. 6). Male wingspan 13.0‒14.0 mm.
Head:Vertex yellowish brown; frons purple. Eye interocular index 0.48‒0.52. Proboscis yellowish brown. Labial palpus 0.63‒0.67 × vertical eye diameter; brown, with black hairs. Antenna 3.4‒3.8 × length of forewing; scape golden yellow ventrally, purplish brown dorsally; flagellum grayish brown except basal 1/5 yellowish brown.
Thorax: Mesonotum golden yellow; tegula purplish bronzy. Forewing ground color golden yellow except distal 1/5 purplish bronzy with metallic luster; black speckle from base to basal 1/5, radiating to near basal 2/5 of wing by several black streaks; purplish bronzy band to basal 2/5 along posterior margin of cell; three black streaks below purplish bronzy band: first streak to near basal 2/5 along CuP, second streak to basal 1/3 along 1A+2A, third streak to basal 1/3 of dorsum; inner and outer fasciae silvery gray, with bronzy luster, edged with brown: inner fascia slightly arched outward, outer fascia curved inward and separated by brown scales medially; medial fascia yellow, narrowed medially; black streaks radiating from outer fascia to distal 1/5 of wing; fringe grayish brown. Hindwing and fringe grayish brown. Foreleg yellow ventrally, purplish bronzy dorsally; midleg brownish yellow; hindleg pale yellow. Epiphysis gray, at middle of tibia, reaching apex of tibia.
Abdomen: Dark brown.
Male genitalia (Fig. 10). Socius reniform, length 1.9 ×width.Uncus sub-trapezoidal, sinuate anteriorly, maximum width 2.1 times length. Tegumen with distinct median ridge. Valva fused for basal half, gradually narrowed to rounded apex, slightly concave medially on costal margin; sacculus reaching distal 1/5 of ventral margin. Transtilla with a semicircular anterior emargination; median process digitate, reaching posterior 2/5 of tegumen apically. Vinculum 2.5 × length of valva, broadly rounded anteriorly. Phallus 1.2 × length of vinculum, with belt of spines from near distal 2/5 to 1/9 (Fig. 10a). Juxta 0.56 × length of phallus; lateral arm 0.24 × length of arrow head.
Female unknown.
Distribution. China (Guangxi).
Etymology. The specific epithet is derived from the Latin med- and seorsus, referring to the medially separated outer fascia of the forewing.
description: Published as part of Sun, Hao & Li, Houhun, 2023, Taxonomy of the mediseorsa species group of the genus Nemophora Hoffmannsegg 1798 (Lepidoptera: Adelidae), pp. 485-494 in Zootaxa 5258 (4) on pages 489-493, DOI: 10.11646/zootaxa.5258.4.9, http://zenodo.org/record/7784653