Autosticha angustivalva S. Wang, 2021

Tao, Zhulin, Wang, Yuqi & Wang, Shuxia, 2021, Taxonomy of the genus Autosticha Meyrick (Lepidoptera: Autostichidae) in China Descriptions of fifteen new species, Zootaxa 5048 (3), pp. 347-370 : 356-359

Autosticha angustivalva S. Wang , sp. nov.

( Figs 9 , 23 , 34 )

urn:lsid:zoobank.org:act:B56171A8-9DAF-4ABE-A151-1088C4DD91B8

Type material. CHINA, Hainan, Holotype ♂, Mt. Wuzhi , (18.91ºN, 109.70ºE), 732 m, 5.VIII.2017, leg. X Bai et al., slide No. TZL19336 . Paratypes: 1♂, 2.VIII.2017, other same data as holotype, slide No. TZL20289 ; 2♂, Limushan Forest Park , 607 m, 25.VII.2014, leg. PX Cong et al., slide Nos. WYQ16653, WYQ15091 ; 1♂, Mt. Limu , 632 m, 3.VII.2015, leg. QY Wang et al., slide No. WYQ15093 ; 1♂, Mt. Wuzhi , 738 m, 22.VII.2016, leg. X Bai et al., slide No. WYQ16405 ; Hunan: 1♂, Yong′an Village , Yizhang County, 480 m, 23.VII.2020, leg. H Sun et al., slide No. TZL19258 ; Yunnan: 1♂, Yayi, Pu′er , 21.X.2010, leg. BB Hu et al., slide No. TZL20221 ; 4♂ 1♀, Houshan, Zijiaosuo, Jingdong , 1140 m, 4‒23.VI.2013, leg. ZG Zhang, slide Nos. JYY16204 ♂, JYY16073 ♂, JYY17031 ♀; 2♂, Nanlahe, Bubang Town , Mengla County, 652 m, 11‒15.VII.2013, leg. SR Liu et al., slide Nos. WYQ16303, WYQ16311 ; 3♂, Yexianggu, Xishuangbanna , 762 m, 10‒12.VII.2015, leg. KJ Teng & X Bai, slide Nos.WYQ16245, WYQ16182 ; 1♂, Lvshilin, Menglun Botanical Garden, Jinghong City , 580 m, 5.VIII.2016, leg. KJ Teng et al., slide No. WYQ16604 ; 1♂, Lagu Village , Lvchun County, 1417 m, 5.VIII.2019, leg. KJ Teng et al., slide No. TZL19277 ; Sichuan: 1♂, Wanniansi, Mt. E′mei, 830 m, 13.VII.2014, leg. KJ Teng et al., slide No. WYQ16233 .

Diagnosis. The new species is similar to A. ventericoncava sp. nov. in male genitalia. It can be distinguished by the valva rounded in the distal 1/4 on the ventral margin and extending dorsad distally, and the juxta sub-triangular on the ventral surface. In A. ventericoncava , the valva is concave in the distal 1/4 on the ventral margin and extending ventrad distally, and the ventral surface of the juxta is sub-rectangular.

Description. Adult ( Fig. 9 ). Forewing length 5.6−6.2 mm.

Head yellow. Antenna yellow on ventral surface, scape brown and flagellum alternated with brown on dorsal surface. Labial palpus with second palpomere yellow on inner surface, dark brown on outer surface, pale yellow at apex; third palpomere yellow, mixed with brown.

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

Male genitalia ( Fig. 23 ). Uncus wide at base, slender to slightly pointed apex. Gnathos circular. Tegumen widened medially, arched on posterior margin, with a large sub-rounded anterior emargination; lateral arm banded. Valva with basal 2/3 sub-rectangular, distal 1/4 slightly narrowed to pointed apex, extending dorsad, rounded on ventral margin; costa narrowly banded; sacculus reaching below costa dorsally, with a weakly sclerotized dorsal edge extending to apex of valva, ventral margin narrowly banded, distally produced a spine-shaped free process reaching 2/3 of valva. Saccus about 1/2 length of uncus, slender, narrowed to pointed apex. Juxta with ventral surface sub-triangular, roundly produced posteromedially; dorsal surface turriform, with circled, evenly spaced ridges. Aedeagus about 5/7 length of valva, slightly tapered; cornuti being a tuft of spines placed distally ( Fig. 23a ).

Female genitalia ( Fig. 34 ). Apophyses posteriores about 1.6 times length of apophyses anteriores. Eighth tergum with posterior margin shallowly concave; eighth sternum with posterior margin convex, anterior margin concave at middle, forming two setose lobes.Antrum funnel-shaped, narrowed anteriorly, produced to a digitate process posterolaterally. Ductus bursae uniform; ductus seminalis arising from about anterior 1/3. Corpus bursae ovoid, longer than ductus bursae; with two signa: one signum below entrance of corpus bursae, sub-luniform; the other signum situated at posterior 1/3, rounded.

Distrubition. China (Hainan, Hunan, Sichuan, Yunnan) .

Etymology. The specific epithet of the new species is derived from the Latin angusti- and valva, referring to the narrow valva.

Figures

FIGURES 9–16. Adults of Autosticha spp. 9, A. angustivalva sp. nov.; 10, A. basiprocessa sp. nov.; 11, A. semicircularia sp. nov.; 12, A. trapeziformis sp. nov.; 13, A. turriformis sp. nov.; 14, A. ventericoncava sp. nov.; 15, A. furcillata sp. nov.; 16, A. ornithorhyncha sp. nov. All holotypes and males. Scales = 2.0 mm.

FIGURES 23–28. Male genitalia of Autosticha spp. 23, A. angustivalva sp. nov., slide No. TZL19336; 24, A. basiprocessa sp. nov., slide No. WYQ14092, 24a, slide No. TZL20701; 25, A. semicircularia sp. nov., slide No. WYQ15123; 26, A. trapeziformis sp. nov., slide No. WYQ15058, 26a, slide No. TZL19955; 27, A. turriformis sp. nov., slide No. TZL20666; 28, A. ventericoncava sp. nov., slide No. TZL19382; 23a–28a, enlarged cornuti. All holotypes except 24a, 26a, 28, 28a. Scales: 23–28 = 0.2 mm; 23a–25a, 27a–28a = 0.05 mm; 26a = 0.1 mm.

FIGURES 34–39. Female genitalia of Autosticha spp. 34, A. angustivalva sp. nov., slide No. JYY17031; 35, A. basiprocessa sp. nov., slide No. JYY16213; 36, A. semicircularia sp. nov., slide No. WYQ16408; 37, A. trapeziformis sp. nov., slide No. TZL20678; 38, A. turriformis sp. nov., slide No. TZL20557; 39, A. ventericoncava sp. nov., slide No. WYQ16289; 35a, 37a, 38a, enlarged signa. All paratypes. Scales: 34–39 = 0.2 mm; 35a, 37a = 0.05 mm; 38a = 0.1 mm.