Commatarcha guangxiensis Li, 2004

Qian, Shuonan & Li, Houhun, 2018, Taxonomic review of the genus Commatarcha Meyrick (Lepidoptera: Carposinoidea: Carposinidae) from China, with descriptions of four new species, Zootaxa 4418 (5), pp. 432-448 : 443-444

Commatarcha guangxiensis Li, 2004

( Figs 10 , 16 , 23 )

Commatarcha guangxiensis Li, 2004: 87 . TL: China (Guangxi). TD: NKU.

Material examined. CHINA: Holotype ♂, Mt. Mao’er , Guangxi Zhuang Autonomous Region, 1100 m, 19.iv.2002, leg. Shulian Hao & Huaijun Xue, slide No. L01037 . Paratype: 1 ♂, same data as holotype .

Additional material. Guangxi Zhuang Autonomous Region: 8 ♂, Mt. Daming , 1250 m, 23‒25.v.2011, leg. Linlin Yang & Yinhui Mou, slide Nos. QSN17515 , QSN17763; 1 ♂, Zhujiang County, Hechi City , 1180 m, 26.vii.2015, leg. Meiqing Yang & Ga-Eun Lee, slide No. QSN17516 . Guizhou Province: 1 ♂, Kuankuoshui Nature Reserves , Suiyang County, 1500 m, 4.vi.2010, leg. Linlin Yang ; 1 ♂, Dashahe, Daozhen County, 1350 m, 25.v.2004, leg. Shulian Hao. Hubei Province: 1 ♂, Qintaiguan Forest Farm, Luotian County, 570 m, 2.vii.2014, leg. Wei Guan & Meiqing Yang. Tibet Autonomous Region: 1 ♂, Medog County, 833 m, 18.viii.2017, leg. Mujie Qi & Xiaofei Yang, slide No. QSN17658 ; 1 ♂, Medog County, Nyingchi City , 1097 m, 10.viii.2017, leg. Mujie Qi & Xiaofei Yang, slide No. QSN17659 . Yunnan Province: 5 ♂, 1 ♀, Taiyanghe National Forest Park, Pu'er City, 1450 m, 1‒5, 24.iv.2015, leg. Kaijian Teng, slide Nos. QSN17478 ♂ , QSN17479♀, QSN17485♂, QSN17529♂; 1 ♂, Taiyanghe Nature Reserves , 1450 m, 8.vi.2014, leg. Zhenguo Zhang, slide No. QSN17522 .

Diagnosis. This species is similar to C. chrysanches ( Meyrick, 1938) in the male genitalia, but it can be distinguished by the sub-triangular valva narrowly rounded at apex, and the cornuti at distal part of aedeagus are composed of a preapical spine and a few apical spines. In C. chrysanches , the sub-rectangular valva has two apical lobes, and the cornuti placed distally are composed of a row of differently sized spines distally ( Diakonoff 1989: 33). The female genitalia of this species are characterized by the large and rounded ostium bursae, the lamella postvaginalis narrowly sclerotized and the antrum weakly sclerotized.

Redescription. Adult ( Fig. 10 ). Wingspan 10.0‒15.0 mm. Head black, part of scales tipped with greyish white. Labial palpus black, upturned in male, extended forward in female; second segment mixed with greyish white scales on inner surface, slightly longer than diameter of eye; third segment white at apex, about 1/3 length of second segment. Antenna with scape black on dorsal surface, greyish white on ventral surface; flagellum brown, greyish white at base, cilia on ventral surface slightly longer than diameter of flagellum. Thorax and tegula black, some scales tipped with greyish white. Forewing narrow, widened from base to basal 1/6, parallel from basal 1/6 to distal 1/5, then narrowed triangularly to rounded apex; ground coloration black, with silvery grey scales; costal margin straight, black, with six greyish white dots evenly spaced from basal 1/3 to apex; termen obliquely straight, black; dorsum nearly parallel to costal margin; with 10 raised white-tipped black scale tufts: three scale tufts arranged in a row, from basal 1/7 below costal margin obliquely inward to basal 1/5 of 1A+2A above dorsum, other scale tufts on median 1/3 of wing arranged in two rows, tuft before upper angle of cell with an ocherous yellow dot on its outer side, tufts at upper and lower angles of cell edged with yellow scales, forming a crescent yellow mark; black band from distal 1/5 of costal margin curved to tornus, sinuate along both outer and inner margins; fringe black. Hindwing grey, apex acute, termen slightly concave; fringe grey to greyish brown.

Male genitalia ( Fig. 16 ). Uncus more than two times wider than long, roundly produced posteriorly, with sparse short setae. Tegumen narrowly banded. Valva sub-triangular, narrowly rounded at apex, with dense setae medio-longitudinally, ventral margin with basal 1/3 convex, distal 2/3 nearly straight; dorsobasal process rodshaped, weakly sclerotized, horizontally extending outward to rounded apex; ventrobasal process wedge-shaped, heavily sclerotized, narrowed to pointed apex, parallel to dorsal process. Transtilla narrowly banded. Vinculum as high as tegumen; saccus slender, broadly rounded apically, about four times length of valva. Juxta broad and short, sub-triangular. Ectophallus broad, sword-shaped, narrowed anteriorly, heavily sclerotized, longer than height of tegumen. Aedeagus slender, about 1.2 times length of distance from apex of uncus to that of saccus; distally set cornuti shaped as a long preapical spine and a small apical tuft of a few spines.

Female genitalia ( Fig. 23 ). Papillae anales small, triangular, acute apically. Eighth sternum sub-rectangular, posterior margin sinuate, with long setae. Apophyses anteriores about 5/9 length of apophyses posteriores. Ostium bursae large, rounded; lamella postvaginalis sclerotized narrowly. Antrum weakly sclerotized, bent funnel-shaped, as long as apophyses anteriores. Ductus bursae membranous, narrowed at basal 1/3, then gradually broadened toward corpus bursae, about three times length of corpus bursae, with dense granules on inner surface; ductus seminalis arising from base of ductus bursae. Corpus bursae ovate, with indistinct boundary with ductus bursae.

Distribution. China: Guangxi ( Li 2004), Guizhou (new record), Hubei (new record), Tibet (new record), Yunnan (new record).

Remarks. The female of this species is described for the first time.

Figures

FIGURES 7‒14. Adults of Commatarcha spp. 7, C. acidodes Diakonoff, ♂; 8, C. convoluta sp. nov., holotype, ♀; 9, C. fanjingshana Li, ♀; 10, C. guangxiensis Li, ♂; 11, C. hamata sp. nov., holotype, ♂; 12, C. palaeosema Meyrick, ♂; 13, C. rotundivalvasp. nov., holotype, ♂; 14, C. setiferaedeaga sp. nov., holotype, ♂ (Scale bars = 2.0 mm).

FIGURES15‒20. Malegenitalia of Commatarchaspp.15, C. acidodes Diakonoff, slideNo.QSN17469;16, C. guangxiensis Li, slide No. QSN17515; 17, C. hamata sp. nov., paratype, slide No. QSN17773; 18, C. palaeosema Meyrick, slide No. QSN17502; 19, C. rotundivalva sp. nov., paratype, slide No. QSN17503; 20, C. setiferaedeaga sp. nov., paratype, slide No. QSN17487 (Scale bars = 0.5 mm).

FIGURES 21‒23. Female genitalia of Commatarcha spp. 21, C. convoluta sp. nov., paratype, slide No. QSN17477; 22, C. fanjingshana Li, slide No.QSN17460; 23, C. guangxiensis Li, slide No.QSN17479 (Scale bars = 0.5 mm).