Meleonoma lunata Wang, 2021

Wang, Shuxia, Zhu, Xiaoju & Tao, Zhulin, 2021, Study of the genus Meleonoma Meyrick, 1914 (Lepidoptera: Autostichidae) from China (III), with descriptions of eighteen new species, Zootaxa 4995 (2), pp. 303-333 : 309-310

publication ID	https://doi.org/ 10.11646/zootaxa.4995.2.5
publication LSID	lsid:zoobank.org:pub:5F060FBC-3CD8-4329-8B2A-F26FEFB16A5D
DOI	https://doi.org/10.5281/zenodo.5057127
persistent identifier	https://treatment.plazi.org/id/1D0E87CF-560B-FFC1-FF3F-FDB228387570
treatment provided by	Plazi
scientific name	Meleonoma lunata Wang
status	sp. nov.

Treatment

Meleonoma lunata Wang , sp. nov.

( Figs 5 View FIGURES 3−8 , 23 View FIGURES 21‒26 , 41 View FIGURES 39‒43 )

Type material. CHINA, Yunnan: Holotype • ♂, Mt. Xiaohei (24.52°N, 98.84°E), Longling County, 1974 m, 18.VII.2013, leg. S. R. Liu et al., slide No. ZXJ19262. GoogleMaps

Paratypes (13♂ 7♀): • 7♂ 3♀, 17‒19.VII.2013, 5♂ 4♀, 27–30.VII.2015, other same data as holotype, slide Nos. ZXJ19267 GoogleMaps ♂, ZXJ19249 ♀; • 1♂, Qiu’natong , Bingzhongluo Town , Gongshan County, Nujiang, 1767 m, 17. VI.2017, leg. K.J. Teng et al .

Diagnosis. The new species is similar to M. rectimarginalis (Wang, 2006) in the features of genitalia. It can be distinguished by the forewing with a median fascia, the aedeagus with dense folds running from beyond middle to before apex in the male genitalia, and the membranous appendix bursae with a crescent sclerite in the female genitalia. In M. rectimarginalis , the median fascia of the forewing is represented by a median costal spot ( Wang 2006a: pl. 9, fig. 122), the aedeagus has folds medially and before apex ( Wang 2006b: 13, fig. 5); the appendix bursae is entirely sclerotized ( Wang 2006b: 13, fig. 21). It is also similar to M. curvativa sp. nov. and M. globoidea sp. nov., and the differences between them are stated in the diagnosis of the preceding two species respectively.

Description. Adult ( Fig. 5 View FIGURES 3−8 ). Forewing length 7.2−7.7 mm.

Head: vertex greyish black, yellow laterally; frons yellowish grey; occiput greyish brown, yellow laterally. Labial palpus yellow; first and second segments greyish black on outer surface, second segment with a greyishblack apical ring; third segment 3/4 length of second segment, with a black line on ventral surface running from base to before distal 1/3. Antenna black, except scape yellow on ventral surface.

Thorax, tegula and forewing greyish black. Forewing with costal margin slightly arched, apex rounded; median fascia yellow, from middle of costal margin oblique outward to beyond middle on dorsum, tinged with greyish-black scales; distal spot yellow, at distal 1/4, inverted triangular, with a greyish-black dot in middle anteriorly; plical spot black, at distal 1/3, touching median fascia; discal and discocellular spots black, discal spot rounded, placed at inner margin of median fascia, discocellular spot banded, at outer margin of median fascia; fringe greyish black, with a yellow basal line. Hindwing and fringe greyish brown. Legs yellow; on ventral surface, coxa and femur of foreleg black, femur of midleg with black spot at middle and at apex, tibiae of fore- and midlegs black except yellow at apices and at middle of midleg, tarsi black except yellow at apices of basal two and apical one tarsomeres, tibia of hindleg greyish black except yellow apically, tarsus with basal four tarsomeres blackish brown except yellow at apices.

Male genitalia ( Fig. 23 View FIGURES 21‒26 ). Uncus narrowed near base, uniformly narrow from near base to middle, widened at middle, then gradually narrowed to obtuse apex, setose in distal 2/3. Tegumen narrowed medially, heavily sclerotized along outer and anterior margins; lateral arm gradually widened to straight apex. Valva narrow at base, widened from base to apex, with several long stout setae before middle, with dense hairs distally, with a ridge extending from base narrowed to beyond basal 1/3 above ventral margin; apex almost truncate, roundly produced dorsoapically, obtusely rounded ventroapically, apical spine from above ventroapical angle; costa slightly concave basally; transtilla straight, slender, narrowed to narrowly rounded apex. Sacculus sub-triangular, wide at base, slightly narrowed to obtuse apex, sclerotized and narrowly banded on ventral margin and on apex, with a setose, narrowly elongate willow-shaped process near base. Saccus broad, short, inverted triangular, rounded at apex, shorter than uncus. Juxta broadly U-shaped. Aedeagus slightly longer than valva, tubular in basal 2/5, with dense folds from beyond middle to before apex, apically produced to a strong, hooked process directed dorsad.

Female genitalia ( Fig. 41 View FIGURES 39‒43 ). Papillae anales sub-quadrate, with short setae. Apophyses anteriores approximately 1/3 length of apophyses posteriores. Eighth sternal plate short, with a groove medially, forming two lateral plates narrowed outward to lateral margin, with dense stout long setae on posterior margin. Lamella antevaginalis banded dorsally, semicircularly concave on posterior margin, obtusely produced on anterior margin, forming two large reniform processes ventrolaterally. Ductus bursae with posterior 3/4 sclerotized, anterior 1/4 membranous; appendix bursae membranous, from junction between ductus bursae and corpus bursae, with a crescent sclerite. Corpus bursae shorter than ductus bursae, ovate; signum at posterior 1/3, basal plate ovate, with a long needle-like process arising from centre and slightly longer than maximum width of basal plate.

Distribution. China (Yunnan).

Etymology. The specific epithet is derived from the Latin lunatus, referring to the shape of the sclerite in the appendix bursae.