Meleonoma puncticulata Wang, 2020

Zhu, Xiaoju, Cai, Bo & Wang, Shuxia, 2020, Genus Meleonoma Meyrick, 1914 (Lepidoptera, Autostichidae) from Hainan Island, China, with descriptions of sixteen new species, ZooKeys 975, pp. 125-157 : 125

Meleonoma puncticulata Wang sp. nov. Figs 18 , 34

Type material.

China, Hainan: Holotype ♂, Mt. Diaoluo (18.73N, 109.87E), 980 m, 23. IV.2014, leg. TT Liu et al., slide No. YAH15063. Paratypes (3♂): 1♂, Mt. Diaoluo, 940 m, 2.VI.2007, leg. ZW Zhang & WC Li; 1♂, Mt. Limu, 640 m, 1.V.2014, leg. TT Liu et al.; 1♂, Jianfengling, 940 m, 4.VI.2007, leg. ZW Zhang & WC Li.

Diagnosis.

The new species is similar to M. leishana (Wang, 2006) and M. stica (Wang, 2006) superficially. It differs from the latter two species by the saccus almost as long as the uncus and the valva evenly wide distally; whereas the saccus is distinctly longer than the uncus and the valva is widened distally before apex in M. leishana ( Wang 2006a: 131, fig. 216) and M. stica ( Wang 2006b: 25, fig. 15). The new species is similar to M. conica sp. nov., and the differences between them are stated in the preceding species.

Description.

Adult (Fig. 18 ). Wingspan 12.0-13.0 mm. Head yellow, vertex with brown scales, frons pale yellow. Labial palpus yellow; second segment with sparse blackish brown scales on outer surface, with a blackish brown ring before apex; third segment slightly shorter than second segment, blackish brown ventrally. Antenna with scape yellow, with blackish brown scales on anterior margin; flagellum blackish brown annulated with yellow dorsally, yellow ventrally. Thorax and tegula yellow mixed with sparse blackish brown scales. Forewing pale yellow to orange-yellow, with blackish brown scales; costal margin with blackish brown dot at base, at basal 3/5 and distal 1/4 respectively; discal and plical spots blackish brown, small and rounded; cell with a round blackish brown at middle, with a transversely elongate spot before posterior angle of cell; dense blackish brown scales from apex along termen to tornus, forming an apical patch; terminal dots blackish brown, running from apex through termen to tornus; fringe yellow except blackish grey on distal part of costal margin and around tornus. Hindwing and fringe greyish brown. Legs yellow, with exception on ventral surface: foreleg blackish brown except coxa yellow mixed with blackish brown, tarsus yellow at apices of basal two tarsomeres; midleg with blackish brown scales on femur, tibia blackish brown except yellow apically, tarsus blackish brown except yellow at apices of basal two tarsomeres; hindleg tinged with blackish brown scales on tibia and tarsus.

Male genitalia (Fig. 34 ). Uncus elongate, narrow at base, widened from base to middle, thereafter narrowed to pointed apex, with a single long seta laterally near base. Gnathos very short, only distinct basally. Tegumen widened medially; lateral arm short, slightly narrowed anteriorly. Valva elongate, widened from base to basal 1/3, subparallel from basal 1/3 to rounded apex, setose; ventral margin with basal 1/3 sclerotized, forming a narrow band; costa wide at base, narrowed to before apex, with stout setae in basal half; transtilla expanded, with dense long setae. Sacculus wide at base, base 3.0 × width of apex, narrowed from base to before distal 1/3; distal part heavily sclerotized, setose, quadrate, truncate apically; dorsal margin sinuate, sclerotized, concave before apex; ventral margin normal, not sclerotized. Saccus almost as long as uncus, wide at base, narrowed to rounded apex. Juxta slender, arched. Phallus approximately 2/3 length of valva; basal 2/5 tubular, sclerotized, distal 3/5 membranous except sclerotized in part, with a small sclerite and indistinct folds distally; curved, sclerotized belt from ca. distal 1/4 exceeding apex of phallus, dilated and with a small sclerite basally; cornutus large and stout, spine-shaped, curved at base, extending from beyond basal 2/5 to before distal 1/4.

Female unknown.

Distribution.

Hainan (Jianfengling, Mt. Diaoluo, Mt. Limu).

Etymology.

The specific epithet is derived from the Latin puncticulatus (adj., having dots), referring to the forewing with several blackish brown dots.

Figures

Figures 12 - 19. Male adults of Meleonoma spp. 12 M. ornithorrhyncha sp. nov. 13 M. parilis sp. nov. 14 M. quadritaeniata sp. nov. 15 M. bidentata sp. nov. 16 M. apicirectangula sp. nov. 17 M. conica sp. nov. 18 M. puncticulata sp. nov. 19 M. robustispina sp. nov. All holotypes. Scale bars: 2.0 mm.

Figures 28 - 35. Male genitalia of Meleonoma spp. 28 M. ornithorrhyncha sp. nov., slide No. YAH 15446 29 M. parilis sp. nov., slide No. YAH 15444 30 M. quadritaeniata sp. nov., slide No. YAH 15450 31 M. bidentata sp. nov., slide No. ZXJ 18110 32 M. apicirectangula sp. nov., LJ 17529 33 M. conica sp. nov., slide No. LJ 17553 34 M. puncticulata sp. nov., slide No. YAH 15063 35 M. robustispina sp. nov., slide No. ZXJ 19014. All holotypes. Scale bars: 0.2 mm.