Meleonoma papillata, Wang & Zhu, 2020

Wang, Shuxia & Zhu, Xiaoju, 2020, Study of the genus Meleonoma Meyrick, 1914 (Lepidoptera: Autostichidae) from China, with descriptions of fifteen new species, Zootaxa 4838 (3), pp. 331-357 : 349-350

Meleonoma papillata sp. nov.

( Figs. 17 , 33 )

Type material. CHINA, Hainan: Holotype ♂, Mt. Wuzhi (18.91°N, 109.68°E), 710 m, 20.IV.2014, leg. TT Liu et al., slide No. YAH15067 . Paratype: 1♂, Jianfengling , Ledong County, 787 m, 6.IV.1982, leg. PZ Chen.

Diagnosis. The new species is similar to M. anisodonta sp. nov. and M. longaedeaga sp. nov. by sharing a semicircular transtilla and an apically bilobed sacculus in the male genitalia. It can be distinguished by the mastoid dorsoapical lobe of the sacculus truncate dorsally and the aedeagus with ventral spines before apex. In M. anisodonta and M. longaedeaga , the dorsoapical lobes of the sacculus are semicircular, and the aedeagus lacks ventral spines.

Description. Adult ( Fig. 17 ). Forewing length 8.0– 9.8 mm.

Head yellow, vertex mixed with yellowish brown scales. Labial palpus yellow, tinged with yellowish brown; third segment shorter than second segment. Antenna with ventral surface yellow; dorsal surface with scape brown, flagellum alternately brown and yellow.

Thorax brown, mixed with yellow; tegula yellow, mixed with brown. Forewing with costal margin arched, apex produced obtusely, termen obtusely oblique; ground color yellow, with scattered brown scales; costal margin with a blackish brown patch at base; median fascia blackish brown, extending from beyond middle to tornus; discal and plical spots blackish brown, discocellular spot merged with median fascia; blackish brown dots running from distal part of costal margin along termen to tornus; fringe concolorous with forewing. Hindwing and fringe grey. Legs yellow; on ventral surface, foreleg with femur blackish brown, tibiae and tarsi of fore- and midlegs blackish brown, tibiae yellow apically, tarsi of basal two tarsomeres yellow at apex.

Male genitalia ( Fig. 33 ). Uncus triangularly shaped, narrowly rounded at apex. Tegumen widened medially, median width as long as uncus; lateral arm narrowed anteriorly. Valva narrow at base, gradually widened to basal 1/3, uniformly wide in distal 2/3 except slightly narrowed from before rounded apex; ventral margin obliquely straight in basal 1/3, arched in distal 2/3, obtusely angled at basal 1/3; costa banded, narrowed distally, not reaching apex of valva, concave basally; transtilla semicircular, with long setae. Sacculus slightly shorter than 1/3 length of valva, broad trapezoidal, dorsal margin concave at middle, ventral margin obliquely obtuse; apex heavily sclerotized, shallowly bilobed: dorsal lobe mastoid, truncate dorsally and rounded apically, ventral lobe obtuse, not distinctly produced. Saccus elongate sub-triangular, narrowly rounded at apex, longer than uncus. Juxta broad U-shaped; lateral arm slender. Aedeagus about 2/3 length of valva, densely wrinkled, relatively thin basally, thickened to before basal 2/3, with a triangular process at basal 2/3 dircting downward; distal 1/3 narrower, curved upward, with spines along ventral margin before apex; apex concave in C-shape, somewhat plier-like, with dorsal lobe longer and hooked, ventral lobe short and triangular.

Female unknown.

Distribution. China (Hainan).

Etymology. The specific epithet of the new species is derived from the Latin papillatus, referring to the shape of the dorsoapical lobe of the sacculus.

Figures

FIGURES 13−18. Adults of Meleonoma spp. 13, M. anisodonta sp. nov., holotype, ♂; 14, M. lanceolata sp. nov., holotype, ♂; 15, M. longaedeaga sp. nov., paratype, ♂; 16, M. lunulata sp. nov., paratype, ♂; 17, M. papillata sp. nov., holotype, ♂; 18, M. rugulosa sp. nov., paratype, ♂. Scales = 2.0 mm.

FIGURES 29−34. Male genitalia of Meleonoma spp. 29, M. anisodonta sp. nov., holotype, slide No. YAH15059, 29a, variation of aedeagus, slide No. YAH15061; 30, M. lanceolata sp. nov., paratype, slide No. LiSR15055, 30a, variation of valva, paratype, slide No. YAH15027; 31, M. longaedeaga sp. nov., holotype, slide No. YAH15472, 31a, variation of aedeagus, paratype, slide No. YAH15345; 32, M. lunulata sp. nov., holotype, slide No. YAH15342; 33, M. papillata sp. nov., holotype, slide No. YAH15067; 34, M. rugulosa sp. nov., holotype, slide No. ZXJ18483. Scales = 0.5 mm.