Meleonoma ventridentata 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 : 312-313

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.5057139
persistent identifier	https://treatment.plazi.org/id/1D0E87CF-5604-FFCC-FF3F-F92328ED73AC
treatment provided by	Plazi
scientific name	Meleonoma ventridentata Wang
status	sp. nov.

Treatment

Meleonoma ventridentata Wang , sp. nov.

( Figs 8 View FIGURES 3−8 , 26 View FIGURES 21‒26 )

Type material. CHINA, Yunnan: Holotype • ♂, Mt. Weibao (24.52°N, 98.84°E), Weishan County, 2244 m, 23.VII.2013, leg. S. R. Liu et al., slide No. YAH15258. GoogleMaps

Paratype: • 1♂, Nankang, Baoshan, 2009 m, 17.VIII.2014, leg. K.J. Teng et al.

Diagnosis. The new species is similar to M. torophanes ( Meyrick, 1935a) in both forewing pattern and male genitalia. It can be distinguished in the male genitalia by the uncus broadly rounded at apex, the apex of the valva with one dorsoapical spine and one ventroapical denticle, and the aedeagus with two large spine-shaped cornuti. In M. torophanes , the uncus is pointed at apex, the valva has one ventroapical spine only, and the cornuti are composed of a row of dense spines ( Wang 2006a: 152, fig. 256).

Description. Adult ( Fig. 8 View FIGURES 3−8 ). Forewing length 6.3−6.9 mm.

Head yellow. Labial palpus whitish yellow; second segment greyish brown on outer surface, paler on basal 1/3, with a blackish-brown apical ring; third segment approximately half length of second segment, with a blackishbrown line running from base to preapex on ventral surface, with scattered blackish-brown scales on dorsal surface. Antenna blackish brown on dorsal surface, yellow on ventral surface; flagellum whitish yellow distally.

Thorax, tegula and forewing blackish brown. Forewing with costal margin arched, apex rounded; median fascia yellow, from middle of costal margin widened obliquely outward to before tornus; distal spot yellow, inverted triangular, at distal 1/5; plical spot black, at basal 3/5 of fold, placed at inner margin of median fascia; discal and discocellular spots black, discal spot ovate, placed at inner margin of median fascia, discocellular spot banded, placed at outer margin of median fascia; fringe blackish brown, with a yellow basal line. Hindwing and fringe pale brown. Legs yellow; on ventral surface, coxa and femur of foreleg brown, femur of midleg with scattered brown scales, tibiae of fore- and midlegs brown except yellow at apices and at middle of midleg, tarsi brown except yellow at apices of basal two and apical one tarsomeres, tibia of hindleg greyish brown except yellow apically, basal three tarsomeres brown except yellow at apices and at base of basal tarsomere.

Male genitalia ( Fig. 26 View FIGURES 21‒26 ). Uncus sub-rectangular, slightly widened before broadly rounded apex, with dense long setae. Tegumen narrowed medially, widely concave medially on anterior margin, heavily sclerotized along outer and anterior margins; lateral arm short, narrowed anteriorly. Valva narrow at base, gradually widened to basal 3/4, distal 1/4 sub-quadrate, slightly narrowed to apex, densely setose; wide sclerotized carina extending to distal 1/4 at 1/4 width from costal margin, narrowed distally, ovately dilated at base; apex obtuse, with a dorsoapical spine and a ventroapical denticle; costa arched distally; transtilla slender, narrowed to pointed apex. Sacculus separated from valva, wide at base, narrowed to basal 3/5, uniformly slender from distal 1/3 to apex, with a narrow transverse band basally along dorsal margin, with a longitudinal membranous plate at base, setose. Saccus broad, almost as long as uncus, narrowed to rounded apex. Juxta narrowly banded, curved, dilated laterodistally. Aedeagus longer than valva, tubular, distal 1/3 slightly inflated; with two large spine-shaped cornuti, smaller cornutus with fine teeth basally.

Female unknown.

Distribution. China (Yunnan).

Etymology. The specific epithet is derived from the Latin ventr - and dentatus referring to the ventroapical denticle of the valva.