Autosticha auriculata 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 : 353-354

Autosticha auriculata S. Wang , sp. nov.

( Figs 5 , 19 , 30 )

urn:lsid:zoobank.org:act:2BC71736-4A34-4B23-8D98-B4EFD35632F2

Type material. CHINA, Yunnan: Holotype ♂, Yexianggu (22.17ºN, 100.87ºE), Xishuangbanna , 762m, 20.VII.2014, leg. KJ Teng et al., slide No. WYQ14121 . Paratypes: 1♂ 1♀, 17‒20.VII.2014, other same data as holotype, slide Nos. WYQ14106 ♂, WYQ14107 ♀; 1♂, Mengla County, Xishuangbanna , 640 m, 10.VIII.2010, leg. YH Sun & LX Li, slide No. WYQ16361 ; Hainan: 1♂ 3♀, Limushan Forest Park, 607 m, 23‒25.VII.2014, leg. PX Cong et al., slide Nos. WYQ16658 ♂, WYQ16623 ♀, WYQ16657 ♀.

Diagnosis. The new species can be distinguished from its congeners by the sacullus with a thumb-shaped process near apex, the juxta distinctly extended anteromedially, and the aedeagus laterally with an ear-like process at distal 1/ 4 in the male genitalia; and sub-trapezoidal corpus bursae in the female genitalia.

Description. Adult ( Fig. 5 ). Forewing length 5.6–6.3 mm.

Head yellow. Antenna: scape blaskish brown on dorsal surface, pale yellow on ventral surface; flagellum yellow, with dark brown annulations on dorsal surface. Labial palpus yellow; second palpomere yellow on inner surface, dark brown on outer surface; third palpomere black medially.

Thorax and tegula brown. Forewing ground color yellow, mixed with brown scales; costal margin dark brown along basal 1/3; black spot at base of fold and costal margin respectively; discal, discocellular, plical and tornal spots black; terminal dots dark brown, ranging from distal 1/3 of costal margin along termen to tornus; fringe yellowish brown. Hindwing greyish brown; fringe yellowish brown. Fore- and midlegs yellow, tibia and tarsi dark brown on dorsal surface; hindleg yellow, mixed with brown scales on outer surface.

Male genitalia ( Fig. 19 ). Uncus clavate, wide at base, pointed at apex. Gnathos with mesial plate triangular, rounded at apex; basal arms narrowly banded, about twice length of mesial plate. Tegumen sub-triangular posteriorly, with a large sub-rectangular anterior emargination. Valva narrow at base, slightly widened to middle, distal half sub-quadrate, truncate at apex, densely setose; costal margin concave before middle; sacculus short, about 1/3 length of ventral margin of valva, narrow at base, widened distally, with a heavily sclerotized, upright, thumbshaped process near apex. Saccus short, stubbed, about 1/4 length of uncus. Juxta large, sub-rectangular, produced to a short thumb-shaped process anteromedially. Aedeagus about 3/5 length of valva, tubular in basal 3/4, tapered from distal 1/4 to rounded apex, with an ear-like process at distal 1/4 laterally ( Fig.19a ); cornutus absent.

Female genitalia ( Fig. 30 ). Apophyses posteriores about twice length of apophyses anteriores. Eighth tergum rectangular, eighth sternum concave in V shape medially on anterior margin, with a cut at middle on posterior margin. Lamella antevaginalis U-shaped, extending backward laterally. Antrum short, cup-shaped. Ductus bursae uniformly narrow in posterior 1/3, wide in anterior 2/3; ductus seminalis arising from posterior 1/3 of ductus bursae. Corpus bursae sub-trapeziform, nearly same length as ductus bursae; with two signa: one signum situated below entrance of corpus bursae, crescent, the other irregularly quadrilateral, with a sclerotized ridge at posterior 1/3.

Distribution. China (Hainan, Yunnan).

Etymology. The specific epithet of the new species is derived from the Latin auriculatus, referring to the earlike process at distal 1/4 of the aedeagus laterally.

Figures

FIGURES 3–8. Adults of Autosticha spp. 3, A. flabellata sp. nov.; 4, A. rhombea sp. nov.; 5, A. auriculata sp. nov.; 6, A. apicilata sp. nov.; 7, A. bomiensis sp. nov.; 8, A. longispina sp. nov. All holotypes and males. Scales = 2.0 mm.

FIGURES 17–22. Male genitalia of Autosticha spp. 17, A. flabellata sp. nov., slide No. TZL20724; 18, A. rhombea sp. nov., slide No. WYQ13123, 18a, enlarged aedeagus, slide No. WYQ16458; 19, A. auriculata sp. nov., slide No. WYQ14121, 19a, enlarged aedeagus; 20, A. apicilata sp. nov., slide No. WYQ16221; 21, A. bomiensis sp. nov., slide No. WYQ16570; 22, A. longispina sp. nov., slide No. WYQ15035; 17a, 20a, 21a, 22a, enlarged cornuti. All holotypes except 18a. Scales: 17–22, 18a = 0.2 mm; 17a–22a = 0.1 mm.

FIGURES 29–33. Female genitalia of Autosticha spp. 29, A. flabellata sp. nov., slide No. TZL20714; 30, A. auriculata sp. nov., slide No. WYQ14107; 31, A. apicilata sp. nov., slide No. WYQ16216; 32, A. bomiensis sp. nov., slide No. TZL20318; 33, A. longispina sp. nov., slide No. TZL20746; 31a, 32a, 33a, enlarged signa.All paratypes. Scales: 29–33 = 0.2 mm; 31a–33a = 0.05 mm.