Meleonoma sinuata, 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 : 519-520

Meleonoma sinuata sp. nov.

( Figs 14 , 26 )

urn:lsid:zoobank.org:act:ED37DBB0-5728-4568-ACA5-86D86C8B2A59

Type material. CHINA, Yunnan: Holotype ♂, Qinlangdang (27.69°N, 98.27°E), 380 m, 28.V.2017, leg. KJ Teng et al., slide No. ZXJ19361.

Diagnosis. The new species can be distinguished from its congeners by the elongate uncus more than three times the length of the saccus and the sinuate ventral margin of the sacculus.

Description. Adult ( Fig. 14 ). Forewing length 7.0 mm.

Head yellow. Labial palpus pale yellow; first palpomere with scattered black scales; second palpomere with sparse black scales, forming a black ring at apex; third palpomere with several dots on outer and dorsal surfaces. Antenna yellow; scape with scattered black scales on dorsal surface; flagellum annulated with black on dorsal surface.

Thorax yellowish brown, mixed with black; tegula black, yellowish brown apically. Forewing ground color yellow, with greyish-black scales; costal margin with black dot at base and basal 3/5; plical, discal and discocellular dots black, plical dot at distal 1/3 of fold, discal dot at middle of cell, discocellular dots doubled, situated at anterior and posterior angles of cell; terminal dots black, extending from near apex of costal margin along termen to before end of fold; fringe grey, tipped with black around tornus. Hindwing and fringe deep grey. Legs yellow; on ventral surface, femur of foreleg with scattered blackish-brown scales, femur of midleg blackish brown apically, tibiae of fore- and midlegs blackish brown except yellow at middle and at apex respectively, tarsi with blackish-brown scales on each tarsomere, tibia of hindleg with scattered blackish-brown scales, tarsus with sparse blackish-brown scales.

Male genitalia ( Fig. 26 ). Uncus slenderly elongate, slightly wide at base, pointed at apex. Tegumen widened medially, with a large V-shaped anterior emargination; lateral arm narrowed anteriorly, rounded at apex. Valva narrowed near base, then widened to before middle, thereafter slightly narrowed to rounded apex, with a setose pad at base; ventral margin concave inward at basal 1/4, obtusely arched from before middle to apex; costa narrowed to before tip of costal margin, with large sparse setae before middle; transtilla weakly sclerotized, slender, pointed at apex. Sacculus wide basally, distinctly narrowed distally, pointed and directed dorsad apically; dorsal margin semicircularly concave medially; ventral margin sinuate, concave before middle and before apex. Saccus 2/5 length of uncus, subparallelly sided, obtuse on anterior margin. Juxta U-shaped; lateral arm slightly dilated apically. Aedeagus shorter than valva, basal half weakly sclerotized, distal half membranous; cornuti being a narrow row and a large patch of short spines.

Female unknown.

Distribution. China (Yunnan).

Etymology. The specific epithet is derived from the Latin sinuatus, referring to the sinuate ventral margin of the sacculus.

Figures

FIGURES 10−15. Adults of Meleonoma spp. 10, M. curvicornuta sp. nov., holotype, ♂; 11, M. dilatilobata sp. nov., holotype, ♂; 12, M. globulosa sp. nov., holotype, ♂; 13, M. prospina sp. nov., paratype, ♀; 14, M. sinuata sp. nov., holotype, ♂; 15, M. unijugata sp. nov., paratype, ♂. Scale bars = 2.0 mm.

FIGURES 22−27. Male genitalia of Meleonoma spp. 22, M. curvicornuta sp. nov., paratype, slide No. TZL19374; 23, M. dilatilobata sp. nov., holotype, slide No. ZXJ19366; 24, M. globulosa sp. nov., holotype, slide No. ZXJ19354; 25, M. prospina sp. nov., paratype, slide No. ZXJ19381; 26, M. sinuata sp. nov., holotype, slide No. ZXJ19361; 27, M. unijugata sp. nov., holotype, slide No. ZXJ19362. Scale bars = 0.5 mm.