Irepacma bispicifera Wang, 2022

Wang, Shuxia, Xu, Zhixin & Li, Suran, 2022, Description of eight new species of the genus Irepacma Moriuti, Saito & Lewvanich (Lepidoptera: Autostichidae) from China, Zootaxa 5222 (1), pp. 37-48 : 38

Irepacma bispicifera Wang , sp. nov.

( Figs 1 , 9 )

Type material. CHINA, Fujian: Holotype ♁, Tongmu Village (27.75°N, 117.69°E), Mt. Wuyi , 2.V.2014, leg. XF Yang, slide No. LiSR16231.

Diagnosis. The new species can be distinguished by the following male genital characters: i) the sinuate ventral margin of the valva distinctly concave beyond the middle, and ii) the aedeagus with two densely spiny spicate distal processes that exceed its the apex.

Description. Adult ( Fig. 1 ). Wingspan 21.0 mm.

Head yellowish brown. Labial palpus in male yellow on inner surface; first palpomere with black scales and second one blackish brown on outer surface. Antenna yellow on ventral surface; on dorsal surface, scape black, flagellum black and yellow.

Thorax. Mesonotum and tegula dark grayish brown. Forewing brown; fringe dark brown, with a yellow basal line along costal margin and termen. Hindwing dark brown; fringe brown. Legs yellow with exceptions on ventral surface: coxa of foreleg dark brown, coxa of midleg with brown scales; on dorsal surface, femur and tibia of foreleg black, tibia of midleg mixed with brown, tarsi of fore- and midlegs black at base of first tarsomere; on outer surface: tibia of hindleg with dense gray scales at base and near apex, first tarsomere grayish brown at base.

Male genitalia ( Fig. 9 ). Uncus conical, tapered from wide base to narrowly rounded apex; lateral margin sclerotized, with sparse setae near base. Gnathos membranous, banded. Valva wide at base, slightly narrowed medially, gradually narrowed from distal 1/4 to obliquely obtuse apex, setose distally; ventral margin sinuate, slightly convex basally, distinctly concave medially, with dense setae from beyond middle to apex; costa banded, exceeding dorso-apex of valva, with a triangular process at base. Sacculus triangular, apex heavily sclerotized, weakly hooked, with short setae. Saccus with basal 1/3 uniformly wide, gradually narrowed from basal 1/3 to narrowly rounded apex. Juxta subquadrate, concave medially on posterior margin, forming two thumb-shaped posterolateral lobes. Aedeagus slightly longer than valva, parallel-sided from basal 1/3 to 2/3, distal 1/3 spatulate, with two densely spiny spicate processes exceeding its apex.

Female unknown.

Distribution. China (Fujian).

Etymology. The specific epithet is derived from the Latin bi - and spicifera, referring to the two spicate processes of the aedeagus.

Figures

FIGURES 1–8. Adults of Irepacma spp. 1, I. bispicifera sp. nov.; 2, I. curticylindra sp. nov.; 3. I. denticulata sp. nov.; 4, I. flaviptera sp. nov. 5, I. longiflagellata sp. nov.; 6, I. rotunda sp. nov.; 7, I. spiculosa sp. nov.; 8, I. tengchongensis sp. nov. All holotypes. Scales = 2.0 mm.

FIGURES 9–12. Male genitalia of Irepacma spp. 9, I. bispicifera sp. nov.; 10, I. curticylindra sp. nov.; 11, I. denticulata sp. nov.; 12, I. flaviptera sp. nov. All holotypes. Scales = 0.5 mm.