Promalactis apicifurcellata Wang & Jia 2018, sp. nov.

Promalactis apicifurcellata sp. nov.

(Figs 2, 7)

Type material. CHINA: Holotype ♀, Houhe (30.20°N, 110.60°E), Wufeng County, Hebei Province, 1000 m, 11.VII.1999, coll. Houhun Li et al, slide No. W00297. Paratype: 1♀, 12.VII.1999, slide No. DZH12171, other same data as for holotype

Diagnosis. This species is similar to P. stenitubilaris sp. nov. in the female genitalia by having an extremely elongate lamella postvaginalis. The differences between them can be found under the diagnosis of the latter species.

Description. Adult (Fig. 2) wingspan 12.5 mm. Head with vertex snowy white, frons slightly yellowish, occiput ocherous yellow. Labial palpus ocherous yellow, paler on inner surface, third segment white at apex. Antenna with scape white, flagellum white annulated with blackish brown. Thorax, tegula and forewing ocherous yellow. Forewing tinged with greyish-brown scales, with three white lines laterally edged with blackish-brown scales: basal line thinner, weakly sinuate, from above base of fold straightly oblique outward to dorsum; antemedian line slightly wider, from above basal 2/5 of upper margin of cell curved obliquely outward to basal 2/3 of dorsum, parallel with basal line; postmedian line from before distal 1/3 of costal margin oblique inward to about middle of outer margin of cell, then straight inward to dorsum before end of fold, slightly widened anteriorly, pale ocherous yellow along outer margin of anterior 2/5; cilia ocherous yellow. Hindwing and cilia greyish brown. Foreleg black, tibia with white spot at base and middle on dorsal side, with a white tuft at apex; mid- and hindlegs dark yellowish brown dorsally, greyish yellow ventrally, mid tibia white at apex; all tarsi white at apex of each tarsomere on dorsal side.

Female genitalia (Fig. 7): Apophyses posteriores about twice length of apophyses anteriores. Ostium bursae large and round. Lamella postvaginalis extended to narrow and extremely elongate, distally setose, tubular process which is slightly widened preapically and thereafter sharply narrowed to slightly bifurcate apex. Lamella antevaginalis sub-trapezoidal, broadened toward widely and shallowly concave apex, medially with large triangular uplifted zone bearing long dense setae. Antrum short, funnel shaped. Ductus bursae longer than corpus bursae, coiled and heavily sclerotized medially, usually with a few large and some nail-like short spines grouped at beginning of sclerotization. Corpus bursae rounded, with dense granules; signum absent.

Male unknown.

Distribution. China (Hubei).

Etymology. The specific epithet is derived from the Latin apex and furcellatus, referring to the apically bifurcate lamella postvaginalis.