Meleonoma curvativa Wang &amp; Zhu &amp; Tao 2021, sp. nov.
Creators: name: Wang, Shuxia
name: Zhu, Xiaoju
name: Tao, Zhulin
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Cosmopterigidae
Meleonoma
Meleonoma curvativa

description: <i>Meleonoma curvativa</i> Wang, sp. nov. (Figs 3, 21, 39) <b>Type material.</b> <b>CHINA, Yunnan:</b> Holotype • ♂, Mt. Yuanlao (24.54°N, 101.02°E), Jingdong County, 2476 m, 2.VII.2013, leg. S. R. Liu <i>et al</i>., slide No. ZXJ19260. Paratypes (6♂ 3♀): • 5♂ 2♀, 2–3.VII.2013, other same data as holotype, slide Nos. YAH15277 ♂, ZXJ19246 ♀; • 1♂ 1♀, Mt. Gaoligong, Baoshan, 2157 m, 21.VII.2015, leg. K.J. Teng &amp; X. Bai. <b>Diagnosis.</b> The new species is similar to <i>M. lunata</i> <b>sp. nov.</b> in the forewing pattern and genital features. It can be distinguished in the male genitalia by the apex of the valva obtusely rounded, the sacculus with a setose triangular process at base and the aedeagus curved in S shape distally. In <i>M. lunata</i>, the apex of the valva is almost truncate, the sacculus has a setose willow-shaped process near base and the aedeagus is not curved distally. The new species is also similar to <i>M. globoidea</i> <b>sp. nov.</b>, and the differences between them are stated in the diagnosis of the latter species. <b>Description.</b> Adult (Fig. 3). Forewing length 7.2−8.3 mm. <i>Head</i> blackish brown except occiput yellow laterally. Labial palpus with first and second segments blackish brown on outer and ventral surfaces, yellow on inner and dorsal surfaces, second segment with a blackish-brown apical ring; third segment yellow, blackish brown from near base to distal 1/3 on ventral surface, with scattered blackish-brown scales on dorsal surface. Antenna blackish brown on dorsal surface, scape yellow and flagellum blackish brown alternated with yellow on ventral surface. <i>Thorax</i> and tegula blackish brown. Forewing blackish brown, tinged with yellow scales, with a yellow dot at base above fold; median fascia yellow, from middle of costal margin extending obliquely outward to beyond middle of dorsum, with brown scales medially and posteriorly; distal spot yellow, inverted triangular, with a blackishbrown dot in middle anteriorly, situated at distal 1/4; plical spot black, placed at inner margin of median fascia; discal and discocellular spots black, placed at inner and outer margins of median fascia respectively; fringe blackish brown, with a yellow basal line. Hindwing and fringe pale greyish brown. Legs yellow; on ventral surface, fore- and midlegs blackish brown except femur and tibia of foreleg yellow apically, tibia of midleg yellow at middle and at apex, tarsi yellow at apices of basal two and apical one tarsomeres, hindleg with scattered blackish-brown scales. <i>Male genitalia</i> (Fig. 21). Uncus parallelly sided from near base to middle, slightly widened beyond middle, then narrowed to rounded apex, with dense long setae, in two individuals, uncus slightly dilated distally (Fig. 21a). Tegumen slightly narrowed medially, heavily sclerotized along margins; lateral arm widened to straight apex. Valva narrow at base, widened from base to apex, with sparse long setae before middle, with dense fine hairs distally, with a sclerotized narrow edge running from near base to middle above ventral margin; apex obtusely rounded, with indistinct tiny teeth, with apical spine from above ventral angle curved downward; costa narrow; transtilla banded, extending straightly to narrowly rounded apex. Sacculus sub-triangular, narrowly rounded at apex, with a setose triangular process at base; dorsal margin sclerotized, fused with valva basally; ventral margin obtuse, sclerotized distally. Saccus semielliptical, rounded at apex, slightly shorter than uncus. Juxta widely U-shaped; lateral arm uniformly narrow. Aedeagus nearly as long as valva, tubular in basal half; distal half heavily sclerotized, ribbonlike, curved in S shape, produced to a stout spine apically. <i>Female genitalia</i> (Fig. 39). Papillae anales sub-trapezoidal, with dense short setae on dorsal surface. Apophyses anteriores approximately 1/3 length of apophyses posteriores. Eighth sternal plate with a quadrate median groove, laterally with a triangular plate narrowed to posterolateral corner, lined with long stout setae on posterior margin. Lamella antevaginalis banded ventrally, dorsally narrowly linked medially, produced to a triangular plate at each side. Antrum funnel shaped. Ductus bursae with posterior 2/5 sclerotized on dorsal surface, membranous on ventral surface, anterior 3/5 with dense granules; ductus seminalis arising from junction of ductus bursae and corpus bursae. Corpus bursae rounded, approximately 1/2 length of ductus bursae; one signum at middle, nail-shaped, with an enlarged sub-rounded base. <b>Distribution.</b> China (Yunnan). <b>Etymology.</b> The specific epithet is derived from the Latin <i>curvativus</i>, referring to the aedeagus curved in S shape distally.
description: Published as part of <i>Wang, Shuxia, Zhu, Xiaoju &amp; Tao, Zhulin, 2021, Study of the genus Meleonoma Meyrick, 1914 (Lepidoptera: Autostichidae) from China (III), with descriptions of eighteen new species, pp. 303-333 in Zootaxa 4995 (2)</i> on pages 306-308, DOI: 10.11646/zootaxa.4995.2.5, http://zenodo.org/record/5056623