Ashibusa longispina Li, sp. nov.

urn:lsid:zoobank.org:act: 03C08FEB-AB8B-4C12-A716-5423B7501305

(Figs 9, 17, 25)

Type material. CHINA, Hainan: Holotype ♂, Jianfengling, Ledong County (18.44°N, 108.52°E), 770 m, 31.V.2015, leg. PX Cong et al., slide No. ZD 21529.

Paratypes: 1♀, Jianfengling, Ledong County (18.44°N, 108.52°E), 770 m, 30.V.2015, leg. PX Cong et al., slide No. ZD 21533 ; 1♂, Jianfengling, 940 m, 6.VI.2007, leg. ZW Zhang & WC Li, slide No. ZD 21525 ; 1♂, Yaxing Village, Nankai Town, Baisha County (19.02°N, 109.40°E), 312 m, 30.VII.2015, leg. QY Wang et al., slide No. ZD 21528 .

Diagnosis. The new species can be distinguished from its congeners by the forewings with basal 4/5 yellowish brown and distal 1/5 black; the right brachium of the socius slightly produced outward medially, and the long spine-shaped dorsal process of the right brachium in the male genitalia; and the annular sterigma in the female genitalia.

Description. Adult (Fig. 9). Wingspan 10.0– 12.5 mm.

Head. Vertex and frons white, vertex mixed with yellowish-brown scales. Antennae pale yellow, scape white terminally, flagellum alternated with brown dorsally. Labial palpi white; second palpomere mixed with yellowish brown dorsally, with a longitudinal yellowish-brown line ventrally; third palpomere yellowish brown at basal 2/5 and near apex.

Thorax. Dorsum of mesothorax and tegulae yellow, with diffused white and brown scales. Forewings yellowish brown with black scales in basal 4/5, black in distal 1/5; ill-defined large black speckle at middle of fold, small black spot near end of fold; tiny black spot near outer margin of discal cell, surrounded by white scales; cream fascia extending from 1/2 of costal margin to dorsum; white streak from before distal 1/5 of costal margin obliquely outward to termen; white streak from outside of preceding white streak extending along termen to apical angle; fringes yellowish brown, mixed with black along distal 1/5. Hindwings and fringes brown. Foreleg with coxa white mixed with brown scales, femur and tibia yellowish brown, tarsus yellow; midleg with femur yellowish brown, tibia with whorls of bristles pale yellow basally, black distally, tarsus yellow, first and fourth tarsomeres white at apex; hindleg with femur yellowish brown, tibia with white-tipped whorls of bristles pale yellow basally, black mottled with pink distally, tarsus yellowish brown, 4–5 tarsomeres mixed with pink scales.

Male abdomen and genitalia (Fig. 17):

Male abdomen. Pleural lobes of eighth segment 3/5 length of valva.

Male genitalia. Socius with right brachium equally wide from near base to before middle, obtusely produced outward medially, slightly narrower distally, pointed at apex; dorsal process arising from beyond middle, long spine shaped, 1/3 length of right brachium. Left brachium 1/2 length of right brachium, narrowed to rounded apex, bent outward near apex. Valvae rod shaped, slightly narrowed at middle, distal 1/3 expanded elliptically, obliquely outward, with dense setae in distal half ventrally. Left valvella broadened distally, rounded at apex, 5/6 length of phallus; right valvella short, digitate, 1/7 length of phallus. Phallus straight, narrowed distally.

Female genitalia (Fig. 25). Apophyses posteriores twice as long as apophyses anteriores. Sterigma annular. Ductus bursae as long as apophyses posteriores, membranous. Corpus bursae ovoid, shorter than ductus bursae; entrance at posterior 1/4 of corpus bursae; signum absent.

Distribution. China (Hainan).

Etymology. The specific epithet of the new species is derived from the Latin longispinus, referring to the long spine-shaped dorsal process on the right brachium of the socius.