Meleonoma varilobata, Zhu & Wang, 2022

Zhu, Xiaoju & Wang, Shuxia, 2022, Taxonomy of the genus Meleonoma Meyrick, 1914 (Lepidoptera: Autostichidae) from China (IV), with descriptions of twelve new species, Zootaxa 5087 (4), pp. 501-521 : 508-509

publication ID	https://doi.org/ 10.11646/zootaxa.5087.4.1
publication LSID	lsid:zoobank.org:pub:349C9ABC-6970-4332-AD94-816918E7535E
DOI	https://doi.org/10.5281/zenodo.5834231
persistent identifier	https://treatment.plazi.org/id/057F687D-26B1-4066-9F54-CDC1D28EF872
taxon LSID	lsid:zoobank.org:act:057F687D-26B1-4066-9F54-CDC1D28EF872
treatment provided by	Plazi
scientific name	Meleonoma varilobata
status	sp. nov.

Treatment

Meleonoma varilobata sp. nov.

( Figs 7 View FIGURES 4−9 , 19 View FIGURES 16−21 , 30 View FIGURES 28−31 )

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 GoogleMaps . Paratypes: 3♂, same data as holotype GoogleMaps ; 6♂ 6♀, 28.V−12. VI.2017, other same data as holotype, slide Nos. ZXJ19447 GoogleMaps ♂, 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 View FIGURES 10−15 ).

Description. Adult ( Fig. 7 View FIGURES 4−9 ). 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 View FIGURES 16−21 ). 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 View FIGURES 28−31 ). 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.