Parastenolechia papillaris Li

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 papillaris Li , sp. nov.

( Figs. 10 , 20–21 , 30 , 37 )

Type material. CHINA: Holotype Ƌ, Zhejiang Province: Qingliangfeng (30.13°N, 119.04°E) 390 m, 18.v.2012, leg. Linlin Yang and Zhenguo Zhang, genitalia slide No. LLJ14053 . Paratypes: Zhejiang Province: 1♀, same data as holotype, genitalia slide No . LLJ15064♀; 1♀, 19.v.2012, genitalia slide No. LLJ14052, other same data as holotype; 1Ƌ, 5♀, Mt. Longtang, Qingliangfeng , 500 m, 21, 22.v.2012, leg. Linlin Yang and Zhenguo Zhang ; Hebei Province: 2♀, Mt. Wuling , Xinglong County, 1000 m, 15, 16.vi.2014, leg. Shurong Liu, genitalia slide No. LLJ15046 ; Shanxi Province: 1Ƌ, Ningwu County (38.67°N, 112.01°E), 1475 m, 21.vii.2011, leg. Shulian Hao and Jiayu Liu, genitalia slide No. LLJ15091 ; Hubei Province: 1Ƌ, Mt. Wujia , Yingshan County, 880 m, 8.vii.2008, leg. Yunli Xiao, genitalia slide No. LLJ15087 ; 1♀, Taohuachong , Yingshan County, 635 m, 24.vi.2014, leg. Wei Guan and Meiqing Yang.

Adult ( Fig. 10 ). Wingspan 14.0 mm. Head white. Labial palpus white; second segment with outer side brown in basal half, longer than third, scales fluffy apically; third segment with black rings at basal 2/5 and 4/5. Antenna with scape white, mixed with brown; flagellum alternately white and black. Thorax and tegula white, tegula pale brown at base. Forewing ground color white, densely covered with brown and yellowish brown scales in middle and distal area; markings black: costa with a small spot near base, with large irregular spot at basal 1/3 and 2/3; several tiny black dots placed distally along costa; plical spot with raised scales; discal spot small and rounded, discocellular spot ill-defined; dorsum with a subrectangular blackish brown patch beyond 1/3, extending to fold; tornal spot subelliptical; subterminal line white, extending from costal 2/3 obliquely outward to M2, then obliquely inward to tornus; cilia grayish brown except white with black scales along termen. Hindwing and cilia dark grayish brown. Fore and mid legs white, tarsi black with white dots; hindleg yellowish white, tibia with long yellowish brown scales, tarsus with black rings.

Male genitalia ( Figs. 20 , 21 ). Eighth sternum subtrapeziform, anterior margin strongly sclerotized. Uncus subquadrate, slightly narrow at base; posterior margin blunt, setose. Gnathos subrectangular; anteromedian process conical, anterolateral process rounded, longer than anteromedian process. Tegumen furcate from middle, roundly projected posteriorly, lateral branch narrowly banded. Glandiductor symmetrical, broadened basally, strongly curved near base, about same length as tegumen-uncus complex. Valva narrowed at base, slightly broadened to apex; outer lobe extremely small, papillary ( Fig. 20 ), or short digitiform ( Fig. 21 ), with several extremely long apical setae that exceed end of juxta; inner lobe stout, much larger, slightly narrowed to rounded apex. Juxta about 1/3 length of glandiductor, basal 2/5 slightly expanded triangularly, distal 3/5 clavate, slightly curved before apex on outer margin. Vinculum broad, somewhat funnel-shaped, arched laterally; saccus subrectangular. Aedeagus about 5/8 length of tegumen-uncus complex, broad basally, distal 1/3 truncate obliquely.

Female genitalia ( Figs. 30 , 37 ). Eighth sternum straight on posterior margin, with sparse short setae. Apophyses anteriores about half length of apophyses posteriores. Ostium bursae with lateral lobes heavily sclerotized, horn-shaped, pointed at apex. Antrum narrower than ductus bursae, about same length as lateral lobes of ostium bursae. Ductus bursae slender, about two times length of corpus bursae, with an inverted triangular sclerite at base. Corpus bursae ovate; signum semicircular, anterior margin slightly concave inward, spines anterolateral.

Diagnosis. This species can be easily distinguished from its congeners by the valva having a papillary or short digitiform outer lobe, which bears several extremely long apical setae that exceed the end of the juxta.

Distribution. China (Hebei, Hubei, Shanxi, Zhejiang).

Etymology. The specific epithet is derived from the Latin papillaris (papillary), referring to the papillary outer lobe of the valva in the male genitalia.

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 21 – 25. Male genitalia of Parastenolechia spp. 21, P. papillaris sp. nov., paratype, slide No. LLJ 15091; 22, P. claustrifera Meyrick, slide No. LLJ 15036; 23, P. trapezia sp. nov., paratype, slide No. LLJ 15009; 24, P. semielliptica sp. nov., holotype, slide No. LLJ 15054; 25, P. longifolia sp. nov., holotype, slide No. LLJ 15043 (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).