Promalactis apisetosa Wang, 2021

Wang, Shuxia & Liu, Chen, 2021, Taxonomic study of the genus Promalactis Meyrick, 1908 (Lepidoptera: Oecophoridae) X. The commotica species-group, with descriptions of twenty-two new species, Zootaxa 4980 (2), pp. 293-330 : 295-296

Promalactis apisetosa Wang , sp. nov.

( Figs 2 , 24 )

Type material. CHINA, Yunnan: Holotype ♂, Linjiapu (25.29°N, 98.70°E), Tengchong, 2144 m, 14.VIII.2014, leg. KJ Teng et al., slide No. HXM14207.

Diagnosis. The new species is similar to P. ruiliensis Wang, 2006 in the male genitalia. It can be distinguished by the valva with a tuft of long setae dorsoapically, the long basal lobe of the juxta slenderly clubbed, and the long aedeagus 1.8 times length of the valva; in P. ruiliensis , the valva has a comblike scale brush along the distal 1/4 of the costa, the short basal lobe of the juxta is sub-triangular, and the aedeagus is 1.3 times length of the valva.

Description. Adult ( Fig. 2 ). Forewing length 5.5 mm.

Head: Vertex and frons greyish brown, occiput pale ocherous brown. Labial palpus with second palpomere ochreous yellow on outer surface, pale yellow on inner surface; third palpomere ochreous yellow, mixed with blackish brown scales. Antenna with scape white; flagellum black alternated with white on dorsal surface, blackish brown on ventral surface.

Thorax: Dorsum of mesothorax and tegula ochreous yellow, tinged with grey. Forewing ochreous yellow, with rust brown and dense blackish grey scales; markings white edged with black scales: costal spot sub-triangular, crossing anterior angle of cell; basal streak slender, oblique inward to base of fold; antemedian streak from dorsal 2/5 extending straightly to below basal 1/3 of anterior margin of cell; dorsal streak from basal 3/4 extending obliquely outward to before distal 1/3 of posterior angle of cell; tornal spot small, with black scales diffused to end of dorsal streak; apical spot narrow, discontinued along termen; fringe orange yellow. Hindwing and fringe greyish brown. Fore- and midlegs white on dorsal surface, black on ventral surface, except tibiae with white spot at base and middle, with a tuft of short white scales at apex, tarsus white at apices of basal two tarsomeres; hindleg blackish brown on outer surface, whitish grey on inner surface, tarsus white at apex of each tarsomere.

Abdomen: Male genitalia ( Fig. 24 ). Basal half of uncus wide, parallel-sided, distal half bifurcate, pointed at apex. Gnathos slightly shorter than uncus; mesial plate wide at base, narrowed to obtuse apex, sclerotized laterally. Tegumen narrow posteriorly, furcate from posterior 3/5; lateral arms broad, slightly narrowed to apex. Valvae elongate sub-rectangular, slightly narrower distally, weakly sclerotized in costal area; apex rounded, with a tuft of long setae dorsoapically, with dense fine setae ventroapically; sacculus heavily sclerotized, more than 2/3 width of valva basally, slightly narrowed to rounded apex distally. Saccus elongate triangular, narrowed to apex, longer than uncus. Juxta slender; basal lobe clubbed. Aedeagus long, 1.8 times length of valva; cornutus absent.

Female. Unknown.

Distribution. China (Yunnan).

Etymology. The specific epithet of the new species is derived from the Latin apex and setosus, referring to the apical tuft of long setae of the valva.

Figures

FIGURES 1‒8. Adults of Promalactis spp. 1, P. apiculifera, holotype, ♂; 2, P. apisetosa, holotype, ♂; 3, P. arcicosta, holotype, ♂; 4, P. baoshana, holotype, ♂; 5, P. bicornuta, holotype, ♂; 6, P. bilobignatha, paratype, ♂; 7, P. binipapillata, paratype, ♀; 8, P. bispina, paratype, ♀. Scales = 2 mm.

FIGURES 23‒28. Male genitalia of Promalactis spp. 23, P. apiculifera, holotype, slide No. HXM14207; 24, P. apisetosa, holotype, slide No. DZH11066; 25, P. arcicosta, paratype, slide No. LC19399; 26, P. baoshana, holotype, slide No. JYY17588; 27, P. bicornuta, holotype, slide No. DZH10246; 28, P. bilobignatha, paratype, slide No. LC19354, 28a, enlarged aedeagus. Scales = 0.2 mm.