Autosticha turriformis S. Wang, sp. nov.

(Figs 13, 27, 38)

urn:lsid:zoobank.org:act: ECBA7012-A6AF-43A0-974E-D2C1BA6FD9E4

Type material. CHINA, Yunnan: Holotype ♂, Gaoligongshan National Forest Park (24.83ºN, 98.77ºE), Baoshan City, 2157 m, 22.VII.2015, leg. KJ Teng & X Bai, slide No. TZL20666. Paratypes: 1♂, 21.VII.2015, other same data as holotype, slide No. WYQ16209; 5♂ 2♀, Mt. Xiaohei, Longling County, 27−30.VII.2016, leg. KJ Teng & X Bai, slide Nos. WYQ16218 ♂, WYQ16442 ♂, JYY17025 ♂, JYY17029 ♂, WYQ16443 ♀, TZL20557 ♀; 3♂, Nankang, Baoshan City, 2009 m, 10.VIII.2014, leg. KJ Teng et al., slide Nos. WYQ16189, WYQ16190, WYQ16191; 1♂, Nankang, Baoshan City, 2009 m, 19‒20.VII.2015, leg. KJ Teng & X Bai, slide No. JYY17026.

Diagnosis. The new species is similar to A. semicircularia sp. nov. in the sacculus without a free distal process in male genitalia. It can be distinguished by the valva obtuse at apex, the smooth costa, and the juxta produced to long spine-shaped process posterolaterally on the ventral surface. In A. semicircularia, the valva is sinuate at apex, the costa is deeply concave at distal 1/3, and the juxta lacks posterolateral spines on the ventral surface

Description. Adult (Fig. 13). Forewing length 6.2−6.9 mm.

Head yellow. Antenna yellow on ventral surface; scape dark brown, flagellum annulated with dark brown on dorsal surface. Labial palpus yellow except second palpomere yellowish brown on outer surface.

Thorax and tegula dark brown. Forewing ground color pale yellowish brown, with scattered dark brown scales; costal margin dark brown along basal 1/3; dark brown spot near base of both subcostal vein and dorsum respectively; discal, discocellular, plical and tornal spots dark brown, discocellular spot largest, tornal spot diffused anteriorly; terminal dots black, ranging from distal 1/4 of costal margin along termen to near tornus; fringe pale yellow. Hindwing and fringe yellowish brown. Fore- and midlegs with femora greyish white, tibiae and tarsi pale yellow on ventral surface, black on dorsal surface, yellow at apex of each tarsomere; hindleg yellow, tarsus brown, pale yellow at apex of each tarsomere.

Male genitalia (Fig. 27). Uncus wide at base, narrowed to apex. Gnathos circular. Tegumen trapezoidal posteriorly; lateral arm narrowed to apex. Valva sub-rectangular, slightly narrowed at base, rounded at apex; costa banded, slightly narrowed distally, with a tooth at tip. Sacculus about half length of valva, ventral margin uniform, narrowly banded, setose, apically produced to a short digitate process. Saccus about 2/5 length of uncus, wide at base, slightly narrowed to rounded apex. Juxta with ventral surface sub-ovoid, produced to long spine-shaped process posterolaterally; dorsal surface turriform, with evenly spaced, coiled ridges, reaching gnathos apically. Aedeagus about 2/3 length of valva, broad in basal half, tapered to apex in distal half, with some teeth distally (Fig. 27a).

Female genitalia (Fig. 38). Apophyses posteriores about 1.5 times length of apophyses anteriores. Eighth tergum straight on posterior margin, eighth sternum convex and concave at middle on posterior margin, forming two sub-rounded lobes. Lamella antevaginalis narrowed medially, triangularly produced posterolaterally. Ductus bursae with posterior 1/3 sclerotized, anterior 2/3 membranous; ductus seminalis from posterior 1/4 of ductus bursae. Corpus bursae elongate oval, about 1.5 times length of ductus bursae; with two signa: one signum situated at posterior 1/5, sub-rounded, with a sclerotized ridge; the other signum situated in middle, rounded, circled by a more sclerotized ring (Fig. 38a).

Distrubition. China (Yunnan).

Etymology. The specific epithet of the new species is derived from the Latin turris and -formis, referring to the shape of the juxta on the dorsal surfce.