Autosticha furcillata 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 : 367-368

Autosticha furcillata S. Wang , sp. nov.

( Figs 15 , 40, 41 )

urn:lsid:zoobank.org:act:B8F10A15-AD8C-4B42-A5E7-C9942B4F381E

Type material. CHINA, Yunnan: Holotype ♂, Taiyanghe (22.79ºN, 100.99ºE), 1450 m, 17.V.2014, leg. ZG Zhang, slide No. WYQ16535 . Paratypes: 1♀, 3.VI.2014, other same data as holotype, slide No. WYQ16536 ; 1♂, Taiyanghe , 7.VI.2015, leg. ZG Zhang, slide No. JYY17060 ; 1♂, Qinlangdang, Mt. Gaoligong , Nujiang County, 380 m, 29.V.2017, leg. KJ Teng et al., slide No. TZL19342 .

Diagnosis. The new species can be distinguished from its congeners in male genitalia by the valva with the costal part bifurcate distally; in female genitalia by one spike-like signum with dense teeth and another semicircular signum with a heavily sclerotized, marginally toothed triangular process on each side.

Description. Adult ( Fig. 15 ). Forewing length 6.6–6.9 mm.

Head yellow, laterally mixed with pale brown scales. Antenna yellow on ventral surface; scape dark brown, flagellum alternated with dark brown on dorsal surface. Labial palpus yellow; second palpomere with dense dark brown scales, third palpomere dark brown basally.

Thorax and tegula pale yellow, tegula dark brown at base. Forewing ground color yellow, with scattered yellowish brown scales; costal margin dark brown along basal 1/4, orange yellow from basal 1/4 to before apex, with a large semicircular black spot from between middle and distal 1/4 extending to discocellular spot; discal, discocellular and plical spots black, discocellular spot largest; tornal spot dark brown, diffused; dorsum with a black spot near base; terminal dots dark brown, ranging along distal 1/5 of costal margin and termen; fringe yellow, mixed with dark brown. Hindwing and fringe brown. Fore- and midlegs yellow on ventral surface, dark brown on dorsal surface; hindleg with femur white on ventral surface, dark brown on dorsal surface, tibia and tarsus pale yellow, with dark brown scales on outer surface.

Male genitalia ( Fig. 40 ). Uncus clavate, wide at base, narrowly rounded at apex. Gnathos narrowly banded, circular; mesial plate indistinct. Tegumen semicircular posteriorly; lateral arm slender. Valva uniformly wide in basal 2/5, with a sub-rectangular ventral plate finely spinous along dorsal margin; distal 2/5 bifurcate: costal part narrower, arched, bilobed apically: dorsal lobe wide, obtuse apically, ventral lobe spine-shaped; ventral part wide at base, narrowed to pointed apex, as long as costal part. Sacculus narrow, concave at middle, with a setose papillary process apically. Saccus about 3/4 length of uncus, clubbed. Aedeagus about 1/2 length of valva, straight, tapered to rounded apex; cornuti consisting of a row of spines running from distal 3/5 to preapex, and a large spine at preapex and at apex respectively ( Fig. 40a ).

Female genitalia ( Fig. 41 ). Apophyses posteriores about twice length of apophyses anteriores. Eighth tergum straight on posterior margin, eighth sternum arched on posterior margin, concave in small V shape medially. Ductus bursae uniform posteriorly, widened toward corpus bursae anteriorly, sclerotized on ventral surface, membranous on dorsal surface; ductus seminalis arising from middle of ductus bursae. Corpus bursae ovoid, about same length as ductus bursae; two signa placed at poterior 1/3: one elongate triangular, spikelike, with dense spines, the other semicircular, with a heavily sclerotized, marginally toothed triangular process at each side.

Distribution. China (Yunnan).

Etymology. The specific epithet of the new species is derived from the Latin furcillatus, referring to the bifurcate apex of the costal part of the 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 40–41. Autosticha furcillata sp. nov. 40, male genitalia, holotype, slide No. WYQ16535, 40a, enalrged cornuti; 41, female genitalia, paratype, slide No. WYQ16536; 42. Male genitalia of A. ornithorhyncha sp. nov., paratype, slide No. JYY16050. Scales: 40–42 = 0.2 mm; 40a = 0.1 mm.