Commatarcha palaeosema Meyrick, 1935

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 : 444-445

Commatarcha palaeosema Meyrick, 1935

( Figs 3 , 12 , 18 )

Commatarcha palaeosema Meyrick, 1935a: 594 ; Okano, 1959: 269; Yano, 1959: 214; Clarke, 1963: 46; Stănoiu & Nemeş, 1968: 108; Kawabe, 1982, 1: 289, 2: 216; Park, 1983: 450 (misidentification of Commatarcha vaga Diakonoff, 1989 ); Diakonoff, 1989: 24; Cho & Park, 1990: 88; Li, 2004: 87. TL: Japan (Honshu). TD: BMNH.

Bondia quaestrix Meyrick, 1935b : Diakonoff 1950: 294. Misidentification.

Material examined. CHINA: Yunnan Province: 1 ♂, Taiyanghe National Forest Park, Pu'er City, 1450 m, 5.iv.2015, leg. Kaijian Teng, slide No. QSN17502 . Zhejiang Province: 1 ♂, Mt. Gutian , Kaihua County, 310 m, 18.v.2017, leg. Shuonan Qian & Ga-Eun Lee, slide No. QSN17525 ; 1 ♂, Mt. Jiulong , 530 m, 4.vii.2013, leg. Aihui Yin & Xiuchun Wang ; 1 ♂, Mt. Longtang , 520 m, 25.vii.2014, leg. Aihui Yin, Xuemei Hu & Qingyun Wang .

Diagnosis. Commatarcha palaeosema can be distinguished from its congeners by the forewing having an inverted V-shaped ocherous yellow spot at basal 1/3 of the costal margin. The male genitalia are diagnostic by the triangular valva slightly curved ventrad distally and the cornuti of aedeagus arranged in a row of several strong spines of almost the same size. This species is similar to C. hamata sp. nov., and the differences between them are stated in the preceding species.

Redescription. Adult ( Fig. 12 ). Wingspan 10.0‒12.0 mm. Head leaden grey. Labial palpus black, extending forward; second segment with dense greyish white on inner surface, slightly longer than diameter of eye; third segment short, about 1/3 length of second segment, greyish white at apex. Antenna with scape black on dorsal surface, greyish white on ventral surface; flagellum brown, cilia on ventral surface same length as diameter of flagellum. Thorax and tegula black, with purplish blue reflection. Forewing relatively broad, widened from base to basal 1/3, parallel from basal 1/3 to distal 1/4, thereafter narrowed triangularly to rounded apex; costal margin straight, termen obliquely straight; ground coloration leaden grey, with dense black scales; costal margin black, with six greyish white dots evenly spaced from distal half to apex, increasing in size, except outmost one smaller; termen obliquely straight, black; with nine raised black scale tufts: three scale tufts arranged from basal 1/8 below costal margin obliquely inward to basal 1/6 of 1A+2A above dorsum, other scale tufts scattered on median 1/3 of wing, tuft at basal 1/3 of costal margin forming an inverted V-shaped, white to yellow mark, tufts at upper and lower angles of cell edged with white scales on outer side, forming a large white lunate mark and a white stripe respectively, mixed with ochreous yellow scales, other tufts tipped with leaden 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. 18 ). Uncus semielliptical, setose. Tegumen narrowly banded. Valva sub-triangular, narrowed to slightly hooked apex; dorsobasal process rod-shaped, curved and extending outward, setose distally; ventrobasal process broad wedge-shaped, longer than and parallel to dorsobasal process, heavily sclerotized along ventral margin. Vinculum longer than height of tegumen; saccus slender, rounded at apex, about 4/5 length of valva. Juxta sub-triangular, broad at base, narrowed to rounded apex. Ectophallus triangular, heavily sclerotized along basal margin, with sclerotized carinae medio-longitudinally, about 3/4 height of tegumen. Aedeagus slender, shorter than distance from apex of uncus to that of saccus, basal 3/5 uniform, except slightly dilated at base, broadened from distal 2/5 to distal 1/5, distal 1/5 narrowed to pointed apex; cornuti shaped as a cluster of nearly same sized large spines, placed distally.

Female genitalia. See Diakonoff 1989: 26.

Distribution. China: Yunnan, Zhejiang (new record); Japan ( Meyrick 1935a).

Remarks. This species is recorded for the first time in China.

Figures

FIGURES2‒6. Genericcharacters of Commatarchaspp.2, Head of C. angustiptera Li showinglabial palpus:2a, ♂; 2b, ♀; 3, Wing venation of C. palaeosema Meyrick, ♂, slide No. QSN17502; 4, Wing venation of C. convoluta sp. nov., ♀, slide No. QSN17477W; 5, Male genitalia of C. setiferaedeaga sp. nov., paratype, slide No. QSN17487; 6, Female genitalia of C. convoluta sp. nov., paratype, slide No. QSN17477 (Scale bars = 0.5 mm).

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).