Celaenorrhinus osculus Evans, 1949

Huang, Zhen-Fu, Chiba, Hideyuki, Fei, Wen & Fan, Xiao-Ling, 2014, The maculosus group of the genus Celaenorrhinus Hübner, 1819 from China, with discovery of female C. kuznetsovi Devyatkin, 2000 (Lepidoptera: Hesperiidae: Pyrginae), Zootaxa 3881 (3), pp. 279-290 : 285

Celaenorrhinus osculus Evans, 1949

Figs. 7–8 , 46–50

Celaenorrhinus oscula Evans, 1949: 94 (Type locality: Tianquan, Sichuan); Devyatkin, 2000: 210; Wang et al., 2012: 56, figs. 3–4.

Diagnosis. Forewing length 18 mm. Wings brown. Forewing upperside with inner margin of subapical spots in spaces R3-R5 almost in line, spots in space R3 and R5 subequal and larger than spot in space R4; spot in space M3 as large as spots in space CuA2; two spots in spaces CuA2 much closer to each other; 3 spots in cell, M3 and CuA1 separated apart farther; forewing underside with basal striping well developed. Hindwing upperside with basal yellow hairs much reduced; the spot in space Rs faint.

Male genitalia ( Figs. 46–50 ). Uncus bifid and U-shaped, with two long branches; gnathos pointed at tip; valve with distal part round, dorso-distal projection turned inward and hook-like at tip; aedeagus with a long cornuti; juxta deeply bifid, V-shaped.

Material examined. 1♂, Nanling National Nature Reserve, Guangdong, 23-VII-2002, WANG Min.

Distribution. China (Sichan, Guangdong); Vietnam.

Remarks. The wing pattern is nearly identical to that of C. maculosus , but yellow marking and basal streaks are paler; the spot in space R4 smaller than that in space R5, the spot in space M3 subequal to spots in space CuA2; in male genitalia, dorso-distal portion of valva hook-like; juxta bifid, branches nearly 1/2 length of juxta.

Figures

FIGURES 1 – 20. Adult of the masulosus group species: 1 – 4. C. maculosus (Felder & Felder) (Guangdong), male (1 – 2), female (3 – 4); 5 – 6. C. taiwanus Matsumura, male (Taiwan); 7 – 8. C. osculus Evens, male (Guangdong); 9 – 12. C. major Hsu (Taiwan), male (9 – 10), female (11 – 12); 13 – 16. C. inexpectus Devyatkin (Guangdong), male (13 – 14), female (15 – 16); 17 – 24. C. kuznetsovi Devyatkin, male (Guangxi) (17 – 18, 21 – 22), female (19 – 20 (Guangdong); 23 – 24 (Guangxi )); 25 – 27. C. yaojiani Huang & Wu (Guangxi, holotype). Odd numbers, upperside; even numbers, underside; scale bar, 10 mm.

FIGURES 46 – 50. Male genitalia of C. osculus Evans (Guangdong). 46. ring, lateral view; 47. tegumen, ventral view; 48. right valva, inner view; 49. aedeagus; 50. juxta.