Caeneressa fangae, Davlatov & Wu, 2018

Davlatov, Abdulaziz M. & Wu, Chun-Sheng, 2018, Description of a new species of the genus Caeneressa from China, with a checklist of the genus (Lepidoptera: Erebidae), Zootaxa 4374 (2), pp. 294-300 : 295

Caeneressa fangae C.-S. Wu, sp. nov.

( Figs. 1–6 )

Diagnosis. This new species is related to C. swinhoei (Leech) and C. hoenei Obraztsov , but differs from them by the symmetrical valvae. The left valva is shorter than the right one in C. hoenei and the processes of the costae are asymmetrical in C. swinhoei . The frons is yellow in C. hoenei , while it is black brown in C. swinhoei and C. fangae , sp. n. The patagium is yellow laterally and the tegula is yellow with black hairs at end in C. swinhoei , while the patagium is black and the tegula lacks black hairs at end in the new species. This new species is also related to C. dispar Obraztsov, C. zernyi Obraztsov and C. actea (Swinhoe) , but can be distinguished easily by the characters of the male genitalia. The valvae do not have costal processes in C. dispar Obraztsov and C. zernyi Obraztsov. The vesica has three thorn-shaped cornuti in C. dispar Obraztsov. The uncus expanded at the base and sub-apex in C. zernyi Obraztsov , which is unique in the genus. The valvae have asymmetrical processes of the costae in C. actea (Swinhoe) , which is similar to that of C. swinhoei (Leech) .

Adult ( Figs. 1–2 ). Forewing length 14–17mm. Antenna bipectinate, black in basal 2/3, white in apical 1/3. Head black, frons black brown. Labial palpus black brown. Patagium black; tegula yellow. Thorax black with a large yellow patch in posterior margin. Femurs of legs yellow, tibia of hind leg pale yellow, other segments of legs brown. Abdomen black; first segment yellow except middle of tergite; 2–7 segments with yellow posterior rings. Wings hyaline; veins, apex and margins black. Forewing with a black subquadrate discal spot. Hindwing with subcostal area and cell black.

Male genitalia ( Figs. 5–6 ). Tegumen elongate; uncus long, curved slightly, pointed and hooked apically; saccus long and narrow, tapering to a pointed apex; juxta rounded, inversely heart-shaped; transtilla weakly sclerotized; valvae symmetrical, apical 1/3 narrower, costal margin with 2 acute processes, apical one thicker; aedeagus long, almost straight; vesica with a single thorn-shaped cornutus.

Holotype. ♂, Mount Emei 800–1000m, Sichuan Province, 1957. V. 28, leg. Huang Ke-Ren, genital slide No. LU 0329.

Paratypes: 1 ♂, Mount Emei , 800–1000m, 1957. V.30, leg. Zhu Fu-Xing ; 1 ♂, Mount Emei , 2100– 1150m, 1955. VI.26, leg. Yang Xing-Chi, genital slide No. LU 0330 ; 1 ♂, Nanchong City , Sichuan Province, 1981. VI.3, leg. Liu Bang-Pei, genital slide No. LU 0892.

Distribution. China, Sichuan Province.

Etymology. The species is named in honour of Prof. Chenglai Fang for her contribution to the classification of the Chinese Syntomini .

Figures

FIGURES 1–6. Caeneressa fangae C.-S. Wu, sp. nov. 1. Adult, male, holotype (Mount Emei, 800–1000m); 2. Adult, male, paratype (same locality as holotype); 3. Label of holotype; 4. Label of paratype; 5. Male genitalia, holotype, gen slide No. LU0329; 6. Male genitalia, paratype, gen slide No. LU0892.