Eugauria crenata Chen & Wu, 2015

Eugauria crenata Chen & Wu , sp. nov. ( Figs 4 View Figs 2–4 , 8–9 View Figs 5–9 )

© Zoological Systematics, 40(4): 470–475

© Zoological Systematics, 40(4): 470–475

Diagnosis. Forewing with the inner edge of the white patch strongly incurved. In male genitalia, the apex of uncus is pointed, the transtilla is finger-like, the narrow sacculus bears an apical harpe, and the valva is broad at apex.

Descriptions. Adults. Wing span male 13 mm, female 15 mm. Head, thorax and abdomen dark fuscous; labial palpi upturned, dark fuscous on sides, the length about 2 times of the diameter of compound eyes, the 2nd slender and the 3rd segment pointed; maxillary palpi upturned; proboscis relatively short. Forewing dark fuscous; a black spot at the upper angle of cell; a white patch at postmedial area, arising from costa to Cu 1, the inner edge strongly incurved; a yellow band at the outside of the white patch; the outside of the yellow band without the crescent patch, which present in other two species of this genus; cilia dark fuscous. Hindwing dark fuscous; a black spot at the middle of cell; anal angle with an incision; submarginal band with 5 connected black eye spots, the eye spots with a silvery spot centrally; cilia dark fuscous.

Male genitalia. Uncus slender, the apex pointed; gnathos slender, little shorter than uncus, apex rounded, with dorsal teeth; tegumen with inverse V-shaped ridge dorsally; valva broaden form the base to the distal, transtilla slender, finger-like, sacculus narrow and sclerotized, with a blunt spine-like apical harpe, the harpe shorter than that of E. albidentata ; vinculum long; saccus large, rounded; juxta plate-like; aedeagus slender and sclerotized.

Female genitalia. Anal papillae narrow, with long setae; apophysis posterioris and anterioris relatively short, apophysis anterioris swollen near the base; ostium bursae sclerotized; ductus bursae long, ducuts seminalis arising just below ostium bursae; corpus bursae rounded, membranous, signa lined, the length about half diameter of corpus bursae.

Holotype ♂, Hainan, Bawangling, Dong'er Forestry-centre ( 19.1ºN, 109.2ºE; elev. 1 015 m), 8 May 2007, Fu-Qiang Chen (Ny1023), deposited in IZCAS. GoogleMaps

Paratype 1♀, Hainan, Jianfengling ( 18.7ºN, 108.9ºE), 1 December 1981, Zhi-Qing Chen (Ny1025), deposited in IZCAS GoogleMaps .

Distribution. China ( Hainan).

Etymology. The name is derived from the Latin " crenate ", corresponding to the shape of inner edge of the white patch.

Funding This research was supported by the National Natural Science Foundation of China ( 31101655, 31471959).

Acknowledgements We are very grateful to Mr. Shi-Mei Song (IZCAS) for providing great help in our research, and Dr. Shen-Horn Yen (National Sun Yat-sen University, Taiwan) for providing us useful reprints and information of the genus.