Commatarcha rotundivalva Li, 2018

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 : 445-446

Commatarcha rotundivalva Li , sp. nov.

( Figs 13 , 19 )

Type material. CHINA: Holotype ♂, Tengchong County (24.87°N, 98.75°E), Yunnan Province, 2116 m, 12.viii.2014, Kaijian Teng, Shurong Liu & Hua Rong.

Paratypes (18 ♂): Yunnan Province: 2 ♂, other same data as holotype, slide Nos. QSN17510, QSN17567 ; 1 ♂, Xiaoheishan Nature Reserve , Longling County, 1974 m, 17.vii.2013, leg. Shurong Liu et al, slide No. QSN17504 ; 10 ♂, Nankang Management Station, Baoshan City , 2009 m, 9‒20.vii.2015, leg. Kaijian Teng & Xia Bai, slide Nos. QSN17503, QSN17505, QSN17506, QSN17509, QSN17566, QSN17774, QSN17526 ; 3 ♂, Gaoligongshan National Forest Park, Baoshan City, 2157 m, 22‒24.vii.2015, leg. Kaijian Teng & Xia Bai, slide Nos. QSN17508, QSN17527 ; 1 ♂, Linjiapu , Tengchong County, 2144 m, 14.viii.2014, Kaijian Teng, Shurong Liu & Hua Rong, slide No. QSN17511 . Tibet Autonomous Region: 1 ♂, 80 K, Medog County, 2089 m, 19.viii.2017, leg. Mujie Qi & Xiaofei Yang, slide No. QSN17657 .

Diagnosis. This species can be distinguished from its congeners by the sub-rectangular valva obtusely straight at apex, the extremely slender aedeagus longer than the distance from the apex of the uncus to the distal end of the saccus, and the cornutus shaped as a long preapical spine; and by a preapical cluster of several spines of unequal length, and a small apical tuft of a few spines present on distal part of the aedeagus.

Description. Adult ( Fig. 13 ). Wingspan 12.0‒14.0 mm. Head grey, scales tipped with greyish white. Labial palpus black, extending forward; second segment greyish white on inner surface, about same length as diameter of eye; third segment about 1/2 length of second segment, greyish white at apex. Antenna with scape black on dorsal surface, greyish white on ventral surface, greyish white terminally; flagellum brown, except greyish white on first flagellomere from base, cilia on ventral surface longer than diameter of flagellum. Thorax and tegula black, some of scales tipped with greyish white. Forewing relatively narrow, widened from base to basal 1/3, parallel from basal 1/3 to distal 1/5, then narrowed triangularly to rounded apex; ground coloration grey, with dense black scales; costal margin nearly straight, black, with seven greyish white dots evenly spaced from basal 1/3 to apex; termen obliquely straight, black, dotted with yellowish white scales; with nine black scale tufts: three scale tufts arranged in a row running from basal 1/6 below costal margin obliquely inward to basal 1/4 of 1A+2A above dorsum, other scale tufts on median 1/3 of wing, tufts at upper and lower angles of cell edged with ochreous yellow scales, forming a crescent ochreous yellow mark and an ochreous yellow stripe respectively, other tufts tipped with bluish grey; black band from middle of R3 curved to tornus, sinuate along both outer and inner margins; fringe black. Hindwing greyish brown, apex narrowly rounded, termen obliquely straight; fringe greyish brown.

Male genitalia ( Fig. 19 ). Uncus short, cracked posteriorly, setose. Tegumen with lateral arm narrowed anteriorly. Valva sub-rectangular, only slightly wide at base, obtusely rounded apically; dorsobasal process rodshaped, setose distally, rounded apically, extending outward; ventrobasal process wedge-shaped, heavily sclerotized, narrowed to pointed apex, shorter than dorsobasal process, its ventral base produced to a strong process that extends obliquely ventrad to before apex of valva. Transtilla narrowly banded. Vinculum with lateral arm about two times height of tegumen; saccus slender, narrowly rounded apically, about two times length of valva. Juxta broad, triangular. Ectophallus elongate triangular, narrowed to rounded apex. Aedeagus slender, slightly longer than distance from apex of uncus to end of saccus, basal half nearly uniform except rounded at base, distal half slightly broad, distinctly broadened before apex; cornuti shaped as a long preapical spine, a preapical cluster of several spines of unequal length, and a small apical tuft of a few spines.

Female unknown.

Distribution. China: Tibet, Yunnan.

Etymology. The specific epithet is derived from the Latin rotundus (round) and valva, referring to the valva obtusely rounded apically in the male genitalia.

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).