Parastenolechia albicapitella Park, 2000

Liu, Linjie & Li, Houhun, 2016, Taxonomic review of the genus Parastenolechia Kanazawa (Lepidoptera, Gelechiidae, Litini) from Mainland China, with descriptions of six new species, Zootaxa 4178 (1) : -

Parastenolechia albicapitella Park, 2000

( Figs. 6 , 16 , 26 , 33 )

Parastenolechia albicapitella Park, 2000: 165 . Type locality: Korea (Gwangleung).

Material examined. CHINA: Zhejiang Province: 1Ƌ, Mt. Fengyang, Lishui , 1470 m, 30.vii.2007, leg. Qing Jin ; 1Ƌ, Qingliangfeng, Lin'an , 900 m, 13.viii.2007, leg. Qing Jin ; 1Ƌ, 1♀, Mt. Jiulong , 400 m, 4, 6.viii.2011, leg. Linlin Yang and Na Chen ; 38Ƌ, 13♀♀, Yanping, Mt. Jiulong , 530 m, 4.vii.2013, leg. Aihui Yin and Xiuchun Wang, genitalia slide Nos. LLJ14110Ƌ , LLJ14111♀, LLJ15096Ƌ; 5Ƌ, 1♀, Zhangkangkou, Mt. Jiulong , 623 m, 5.vii.2013, leg. Aihui Yin and Xiuchun Wang ; 15Ƌ, 3♀, Neijiujian, Mt. Jiulong , 430 m, 7.vii.2013, leg. Aihui Yin and Xiuchun Wang, genitalia slide Nos. LLJ15092Ƌ , LLJ15094Ƌ; 35Ƌ, 16♀, Huangtanyu, Mt. Jiulong , 467 m, 8.vii.2013, leg. Aihui Yin and Xiuchun Wang, genitalia slide Nos . LLJ14112Ƌ, LLJ14113♀, LLJ15095 ♀; 1Ƌ, Mt. Longtang , 520 m, 21.vii.2014, leg. Aihui Yin, Xuemei Hu and Qingyun Wang ; 1Ƌ, 1♀, Sanmuping, Mt. Tianmu , 789 m, 11.viii.2014, leg. Aihui Yin, Qingyun Wang and Suran Li ; 2Ƌ, Sanmuping, Mt. Tianmu , 789 m, 16.vii.2015, leg. Aihui Yin, Kang Lou and Tao Wang ; Hubei Province: 4Ƌ, Yingshan County, 635 m, 23– 27.vi.2014, leg. Wei Guan and Meiqing Yang ; 3Ƌ, Mt. Wujia , Yingshan County, 880 m, 28.vi.2014, leg. Wei Guan and Meiqing Yang, 8.vii.2008, 15.vii.2011, leg. Yunli Xiao ; Yunnan Province: 1♀, Mt. Weibao , Weishan County, 2244 m, 22.vii.2013, Shurong Liu, Yuqi Wang and Kaijian Teng;

Redescription. Adult ( Fig. 6 ). Wingspan 10.0–13.0 mm. Head white. Labial palpus white; basal half of second segment brown on outer surface, yellowish white on inner surface, distal half white mixed with pale brown scales; third segment with a blackish brown ring at basal 1/3 and a relatively wide blackish brown ring before apex, acute apically. Antenna with scape dark brown on dorsal surface, pale brown on ventral surface; flagellum alternately pale yellowish brown and blackish brown. Thorax and tegula white except tegula pale yellow at base. Forewing snowy white, suffused with yellow and pale brown scales in distal area; markings black: sub-basal patch obliquely extending from costa across 1/4 of fold; costa with a relatively small spot at basal 2/5 not reaching upper margin of cell, with a large inverted triangular patch at distal 1/3 reaching above lower angle of cell; tornal spot large subtriangular, anteriorly connected with costal patch at distal 1/3; tiny dots ranging from distal 1/3 of costa along termen to before tornus; cilia grayish white, tinged with brown along termen, grayish brown along dorsum. Hindwing and cilia grayish brown. Fore and mid legs blackish brown, distal half of mid tibia and apex of each tarsomere white; hindleg with tibia grayish white, tarsus blackish brown except apex of each tarsomere and apical tarsomere yellowish white mottled black scales.

Male genitalia ( Fig. 16 ). Eighth sternum with anterior margin produced trapezoidally, posterior margin almost straight. Uncus nearly quadrate, slightly narrower at base, almost straight on posterior margin, posterolateral angle blunt. Gnathos rectangular, wider than long, anteromedian process hooked. Tegumen furcate from posterior 2/5, subtriangularly projected posteriorly; lateral branch gradually narrowed. Glandiductor symmetrical, slender, longer than tegumen-uncus complex, dilated subtrianguarly at base, strongly curved at approximately basal 1/5. Valva subrectangular; outer lobe clavate, distally dilated elliptically, with long setae; inner lobe slender, slightly shorter than half length of outer lobe. Juxta slightly shorter than outer lobe of valva, dilated basally, almost uniform mesially, sharply narrowed before apex, hooked apically. Vinculum somewhat inverted triangular; saccus short, rectangular, slightly concave on anterior margin. Aedeagus shorter than tegumen, slightly dilated basally, gradually narrowed to apex, slightly curved, distal 1/3 obliquely truncate.

Female genitalia ( Figs. 26 , 33 ). Eighth sternum with posterior margin slightly incurved, sparsely setose. Apophyses anteriores thicker, about 1/3 length of apophyses posteriores. Ostium bursae rounded; lateral lobes sclerotized, blunt posteriorly. Antrum with basal 1/3 narrow, distal 2/3 broadened. Ductus bursae more than three times length of corpus bursae. Corpus bursae round; signum subtriangular, posterior margin roundly arched, anterior margin concave inward mesially, spines anterolateral.

Diagnosis. Parastenolechia albicapitella is similar to P. claustrifera in the forewing pattern and the genital characters. It can be differentiated by the forewing with a relatively small black costal spot at basal 2/5 not reaching upper margin of the cell, the juxta shorter than the outer lobe of the valva in the male genitalia, and the rounded lateral lobes of the ostium bursae and the subtriangular signum in the female genitalia. In P. claustrifera , the relatively large black spot at basal 2/5 of the costa reaches the upper margin of the cell, the juxta is longer than the outer lobe of the valva in the male genitalia, and the lateral lobes of the ostium bursae are elongate triangular and the signum is scaphoid. Parastenolechia albicapitella is also similar to P. t r a pe z i a sp. nov. in the forewing pattern and the genitalia, and the differences between them are stated under the latter species. Distribution. China (Hubei, Yunnan, Zhejiang), Korea.

Remarks. This species is newly recorded from China.

Figures

FIGURES 6 – 11. Adults of Parastenolechia spp. 6, P. albicapitella, male; 7, P. argobathra, male; 8, P. collucata, male; 9, P. arciformis sp. nov., holotype, male; 10, P. papillaris sp. nov., paratype, female; 11, P. claustrifera Meyrick, female (Scale bars = 2.0 mm).

FIGURES 16 – 20. Male genitalia of Parastenolechia spp. 16, P. albicapitella, slide No. LLJ 14110; 17, P. argobathra, slide No. LLJ 15045; 18, P. collucata, slide No. LLJ 15044; 19, P. arciformis sp. nov., paratype, slide No. LLJ 15063; 20, P. papillaris sp. nov., paratype, slide No. LLJ 15087 (Scale bars = 0.3 mm).

FIGURES 26 – 32. Female genitalia of Parastenolechia spp. 26, P. albicapitella, slide No. LLJ 14113; 27, P. argobathra, slide No. LLJ 15047; 28, P. collucata, slide No. LLJ 15048; 29, P. arciformis sp. nov., paratype, slide No. LLJ 15089; 30, P. papillaris sp. nov., paratype, slide No. LLJ 15064; 31, P. claustrifera Meyrick, slide No. LLJ 15050; 32, P. medispina sp. nov., paratype, slide No. LLJ 15111 (Scale bars = 0.3 mm).

FIGURES 33 – 40. Enlarged lateral lobes of female ostium bursae of Parastenolechia spp. 33, P. albicapitella, slide No. LLJ 14113; 34, P. argobathra, slide No. LLJ 15047; 35, P. collucata, slide No. LLJ 15048; 36, P. arciformis sp. nov., paratype, slide No. LLJ 15089; 37, P. papillaris sp. nov., paratype, slide No. LLJ 15064; 38, P. claustrifera Meyrick, slide No. LLJ 15050; 39, P. trapezia sp. nov., paratype, slide No. LLJ 15049; 40, P. medispina sp. nov., paratype, slide No. LLJ 15111 (Scale bars = 0.1 mm).