Meleonoma varilobata Zhu & Wang 2022, sp. nov.
Creators: name: Zhu, Xiaoju
name: Wang, Shuxia
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Cosmopterigidae
Meleonoma
Meleonoma varilobata

description: Meleonoma varilobata sp. nov.
(Figs 7, 19, 30)
urn:lsid:zoobank.org:act: 057F687D-26B1-4066-9F54-CDC1D28EF872
Type material. CHINA, Yunnan: Holotype ♂, Pukawang Village (27.84°N, 98.32°E), Gongshan County, Nujiang, 1335 m, 7. VI.2017, leg. KJ Teng et al., slide No. ZXJ19451. Paratypes: 3♂, same data as holotype; 6♂ 6♀, 28.V−12. VI.2017, other same data as holotype, slide Nos. ZXJ19447 ♂, ZXJ19463 ♂, ZXJ19464 ♀, ZXJ19707 ♂, ZXJ19708 ♀.
Diagnosis. The new species is diagnostic by the valva with a large process arising from near base of the costa in the male genitalia. It is similar to M. cornutivalvata (Wang, 2003) in the male genitalia, and can be distinguished by the valva with a sub-triangular ventral process beyond basal 2/3, and the sacculus produced to a slender setose process distally. In M. cornutivalvata, the valva has a rounded process at base on the ventral margin, and the sacculus is produced to a sub-rectangular process distally (Wang 2003: 203, Fig. 12).
Description. Adult (Fig. 7). Forewing length 7.0 mm.
Head with vertex blackish brown, frons yellow. Labial palpus yellow; second palpomere with dense blackish-brown scales in distal half, with a blackish-brown ring near apex; third palpomere slender, approx. 2/3 length of second palpomere. Antenna yellow, scape mixed with blackish-brown scales dorsally, flagellum alternated with blackish brown.
Thorax and tegula blackish brown. Forewing with costal margin arched, apex rounded; blackish brown, with ill-defined discal, discocellular and plical spots; fringe greyish brown. Hindwing and fringe deep grey. Legs yellow; blackish brown on ventral surface except tibia of foreleg yellow apically, tarsus yellow at apices of basal four tarsomeres, tarsi of mid- and hindlegs yellow at apex of each tarsomere.
Male genitalia (Fig. 19). Uncus wide at base, narrowed to basal 3/5, distal 2/5 uniformly narrow, obtuse at apex; distal 3/4 sclerotized and folded laterally. Tegumen wide medially; lateral arm narrowed to rounded apex. Valva narrow at base, widened to basal 2/3, narrowly parallel sided from distal 1/3 to before narrowed apex; ventral margin with a setose, sub-triangular process from beyond basal 2/3 oblique outward; costa banded, heavily sclerotized, with a large process arising from near base, its basal 2/3 narrow, distal 1/3 dilated, spicules. Sacculus wide at base, gradually narrowed to middle, abruptly narrowed to a slender setose process distally; dorsal margin with a small denticle at middle. Saccus broad and wide, narrowed from wide base to rounded apex, slightly shorter than uncus. Juxta U-shaped; lateral arm slender, clubbed. Aedeagus inflated basally, uniform from basal 1/5 to middle, distal half bilobed: dorsal lobe wider, with fine wrinkles, ventral lobe narrow, sinuate on ventral margin.
Female genitalia (Fig. 30). Papilla analis sub-quadrate, with short setae on dorsal surface. Apophyses posteriores approx. 4.0 times as long as apophyses anteriores. Eighth sternal plate concave at middle, narrowed from middle to posterolateral corner, lined with long setae on posterior margin. Lamella antevaginalis composed of two ovate plates on dorsal surface and two large sub-triangular frames on ventral surface. Antrum inverted triangular, slightly concave medially on posterior margin, with a narrow band along edge of concavity. Ductus bursae membranous, basal half uniformly narrower, distal half uniformly wider, with a small sclerite near middle; appendix bursae from middle of ductus bursae; ductus seminalis arising from posterior margin of appendix bursae. Corpus bursae large, ovate, distinctly longer than ductus bursae; signum rounded, with dense teeth, placed at bottom of corpus bursae.
Distribution. China (Yunnan).
Etymology. The specific epithet is derived from the Latin varius and lobatus, referring to the two unequally sized distal lobes of the aedeagus.
description: Published as part of Zhu, Xiaoju & Wang, Shuxia, 2022, Taxonomy of the genus Meleonoma Meyrick, 1914 (Lepidoptera: Autostichidae) from China (IV), with descriptions of twelve new species, pp. 501-521 in Zootaxa 5087 (4) on pages 508-509, DOI: 10.11646/zootaxa.5087.4.1, http://zenodo.org/record/5832792