Meleonoma lanceolata, Wang & Zhu, 2020

Meleonoma lanceolata sp. nov.

( Figs. 14 View FIGURES 13−18 , 30 View FIGURES 29−34 , 40 View FIGURES 39−43 )

Type material. China, Zhejiang: Holotype ♂, Xiguan ( 30.36°N, 119.48°E), Mt. Tianmu , 566 m, 18.VII.2014, leg. AH Yin GoogleMaps et al., slide No. LiSR15095. Paratypes ( 77♂ 35♀): Zhejiang: 2♂ 3♀, same data as holotype, slide No. LiSR15048 ♀; 2♂, Mt. Tianmu , 350 m, 15.VIII.1999, leg. HH Li GoogleMaps ; 2♂ 4♀, 7−9.VII.2014, 1♂, 15.VIII.2014, Qianjiangyuan, Mt. Tianmu , 866 m, leg. AH Yin et al.; 6♀, Sanmuping, Mt. Tianmu , 1000 m, 28–29.VII.2011, leg. N Chen & LL Yang ; 6♀, 12–14.VII.2014, 3♀, 9–11.VIII.2014, Sanmuping, Mt. Tianmu , 789 m, leg. AH Yin et al.; 1♀, 6.VII.2014, 1♂, 18.VIII.2014, Lao’an, Mt. Tianmu , 555 m, leg. AH Yin et al.; 1♂, Shunxi, Lin’an , 420 m, 12.VIII.2007, leg. Q Jin ; 1♂ 1♀, Qianqingtang, Qingliangfeng, Lin’an , 1059 m, 28.VII.2014, leg. AH Yin et al.; 1♂, Wuyanling , Taishun County, 250 m, 4.VIII.2005, leg. YL Xiao ; 3♂, Wuyanling , Taishun County, 790 m, 2.VIII.2007, leg. Q Jin ; 1♂, Mt. Jiulong , 400 m, 4.VIII.2011, leg. LL Yang & N Chen ; 1♀, Yanping, Mt. Jiulong , 530 m, 4.VII.2013, leg. AH Yin & XC Wang ; 1♀, Zhangkengkou, Mt. Jiulong , 623 m, 5.VII.2013, leg. AH Yin & XC Wang ; 2♂, 25.VII.2014, 1♂, 29.VIII.2014, Jiufu Village, Mt. Longtang, 520 m, leg. AH Yin et al.; 1♂, Longxushan Village, Mt. Longxu , 778 m, 20.VIII.2014, leg. AH Yin et al.; 2♀, Pinggang, Mt. Longxu , 754 m, 20.VII.2014, leg. AH Yin et al.; 2♂, National Forest Park, Mt. Siming, Ningbo City , 822 m, 31.VII–1.VIII.2016, leg. QY Wang et al.; 3♂, Fuze Village , Chun’an County, 144 m, 1–3.VIII.2018, leg. S Yu et al.; 4♂, Datou Village, Quzhou City , 707 m, 6–8.VIII.2018, leg. S Yu et al.; 4♂, Laofoyan Village, Xianxialing, Jiangshan City , 465 m, 10–12.VIII.2018, leg. S Yu et al.; 2♂, Mt. Gutian , Kaihua County, 416 m, 15.VIII.2018, leg. S Yu et al.; 1♂, Wangdongyang Wetland, Jingning County , 1174 m, 18.VIII.2018, leg. S Yu et al.; 1♂, Linkeng Village , Yongjia County, 387 m, 24.VIII.2016, leg. QY Wang et al.; Chongqing: 1♀, Baiyunzhuhai, Mt. Jinyun, 550 m, 17.VII.2011, leg. XC Du ; 3♂, Tudiyan, Mt. Simian , 1200 m, 9.VIII.2011, leg. GQ He & LF Song ; 1♂, Wangxiangtai, Mt. Simian , 900 m, 18.VII.2012, leg. YH Sun & AH Yin ; 1♂, Beipo, Mt. Jinfo , 800 m, 23.VIII.2014, leg. XF Yang ; Fujian: 2♂ 1♀, Guadun, Mt. Wuyi, 1100 m, 31.VII.2008, leg. WC Li et al., slide No. LiSR15055 ♂ ; Guangxi: 1♀, Mt. Mao’er , 1016 m, 25.VII.2015, leg. MJ Qi & SN Zhao ; 1♂, Gaozhai Village, Mt. Mao’er, Guilin City , 1063 m, 27.VII.2015, leg. KL Liu & JX Zhao ; 2♂, Huaping , 950 m, 6.VIII.2006, leg. WC Li ; 4♂, Mt. Daming, Nanning City , 1200 m, 6–7.VIII. 2011, leg. SL Hao & YH Sun , slide No. YAH15027; 1♂, Mt. Dayao , Jinxiu County, 1364 m, 19.VII.2015, leg. MJ Qi & SN Zhao ; Guizhou: 1♂, Xiannvdong , Daozhen County, 600 m, 17.VIII.2004, leg. YL Xiao ; 1♂, Kuankuoshui , Suiyang County, 17.VIII.2010, leg. LL Yang ; 1♂, Mt. Leigong, Fangxiang Town, 910 m, 4.VIII.2018, leg. ML Zheng et al .; Hainan: 1♂, Yinggeling , 30.IX.2010, leg. BB Hu ; Henan: 1♂, Mt. Baiyun, Song County, 1400 m, 15.VIII.2008, leg. HH Li ; Hubei: 2♀, Taohuachong , Yingshan County, 635 m, 24–25. VI.2014, leg. W Guan & MQ Yang ; 2♀, Taohuachong , Yingshan County, 590 m, 25–27. VI.2014, leg. JY Luo & Y Fei ; 1♂, Qingtaiguan Forest Farm , Luotian County, 570 m, 3.VII.2014, leg. W Guan & MQ Yang ; Jiangxi: 1♂, Mt. Feng, Ganzhou City , 27.VIII.2006, leg. JS Xu & MS Liu ; Liaoning: 1♂, Mt. Qian, Anshan City, 245 m, 6.VIII.2016, leg. MJ Qi et al.; Shaanxi: 1♂, Donghetai , 1400 m, 25.VII.2018, leg. YY Li ; Shandong: 2♂, Mt. Kunyu, Yantai City , 21.VII.2009, leg. Q Jin ; 13♂, Beijiushui, Mt. Lao, Qingdao City , 1.VIII.2009, leg. Q Jin ; Sichuan: 2♂, Mt. Jiulong, Mianzhu City, 810 m, 31.VII.2016, leg. Y Fei.

Diagnosis. The new species is similar to M. malacobyrsa ( Meyrick, 1921) . It can be recognized in the male genitalia by the distal 2/3 of the aedeagus with two elongate sclerites, and in the female genitalia by the antrum narrowly incised anteromedially and the ductus bursae with two elliptical plates anteriorly. In M. malacobyrsa , the aedeagus has three elongate sclerotized sclerites in distal 2/3, and the antrum is not incised anteriorly and the ductus bursae is absent of sclerotized plates in the female genitalia ( Clarke 1963: 165, Fig. 2 View FIGURE 2 ).

Description. Adult ( Fig. 14 View FIGURES 13−18 ). Forewing length 7.5−9.0 mm.

Head with frons yellow; vertex blackish brown, yellow along dorsal margin of eye. Labial palpus yellow, with scattered blackish brown scales on outside of first and second segments, with a logitudinal blackish brown line extending from base to end on ventral surface of second segment; third segment about 2/3 length of second segment. Antenna blackish brown dorsally, yellow ventrally.

Thorax and tegula deep yellowish brown, mixed with blackish brown. Forewing with costal margin arched, apex rounded; yellow to ochreous, mixed with blackish brown scales, denser between fold and dorsum; median fascia blackish brown, extending from middle of costal margin oblique to tornus, widened anteriorly; subterminal fascia black, arched; discal and plical spots black, large, ovate; black dots running from about distal 1/4 of costal margin along termen to tornus; fringe yellow, yellowish brown around tornus. Hindwing and fringe greyish brown. Legs yellow; on ventral surface, foreleg blackish brown except tibia mixed with orange, midleg blackish brown except tibia orange apically, tarsi of fore- and midlegs with basal two tarsomeres orange at apex, hind tarsus greyish brown, yellow at apex of each tarsomere.

Male genitalia ( Fig. 30 View FIGURES 29−34 ). Uncus lanceolate, basal 2/3 parallel, distal 1/3 narrowed to pointed apex, with a single long seta at basal 1/4 laterally. Tegumen with widest part about same length of uncus. Valva narrow basally, widened to basal 2/3, thereafter slightly narrowed to rounded apex; ventral margin straight in basal 2/5, arched in distal 3/5, with a small process at basal 2/5; in some individuals, valva stouter, widened from base to before middle, thereafter slightly narrowed to rounded apex ( Fig. 30a View FIGURES 29−34 ); costa with basal 2/3 heavily sclerotized, distal 1/3 gradually narrowed, reaching before end of valva terminally, concave basally; transtilla roundly dilated, with tuft of long setae. Sacculus short and broad, about 1/3 length of valva; apex concave inwardly, forming two lobes: dorsal lobe stout, curved ventrad, rounded at apex; ventral lobe narrow, triangular, pointed at apex. Saccus wide at base, slightly narrowed to rounded apex. Juxta U-shaped. Aedeagus almost as long as valva, basal 1/3 narrow, nearly uniform, distal 2/3 with two sclerotized elongate sclerites: dorsal sclerite slender, rodlike, enlarged in C-shape distally; ventral sclerite widened medially, narrowed distally, serrate dorsomedially and ventrobasally; with two clusters of small spines in membrane.

Female genitalia ( Fig. 40 View FIGURES 39−43 ). Papillae anales rectangular, setose. Apophyses anteriores about half length of apophyses posteriores. Eighth sternal plate spiculate, concave at middle on posterior margin. Lamella antevaginalis sub-trapezoidal, deeply concave at middle on anterior margin. Antrum sclerotized, sub-rectangular, deeply incised to anterior 1/3 from middle of anterior margin. Ductus bursae membranous, globularly expanded, with two elliptical plates; ductus seminalis arising from transition of ductus bursae and corpus bursae. Corpus bursae rounded; signum placed at bottom, elongately elliptical, with a row of teeth, apical tooth largest.

Distribution. China ( Chongqing, Fujian, Guangxi, Guizhou, Hainan, Henan, Hubei, Jiangxi, Liaoning, Shaanxi, Shandong, Sichuan, Zhejiang).

Etymology. The specific epithet of the new species is derived from the Latin lanceolatus, referring to the shape of the uncus.