Ripeacma magnihamata Wang

Yin, Aihui & Wang, Shuxia, 2013, Three new species of the genus Ripeacma (Lepidoptera: Oecophoridae) from China, Zootaxa 3718 (6), pp. 591-595 : 593-594

Ripeacma magnihamata Wang , sp. nov.

( Figs. 4 , 8)

Type material. Holotype ♂, CHINA: Wuyi Mountain (27°46’N, 118°02’E), Fujian Province, 750 m, 25.VII.2008, coll. Weichun Li, Yongling Sun & Haiyan Bai, genitalia slide No. YAH13004.

Diagnosis. This new species can be easily separated from other known species of the genus by the aedeagus with a large hook and a fan-shaped plate distally.

Description. Adult ( Fig. 4 ). Wingspan 12.0 mm. Head yellowish brown, frons yellowish white. Labial palpus with second segment whitish yellow on basal 2/3, distal 1/3 becoming yellowish brown on outside, whitish yellow on inside, pointed at apex. Antenna with scape grayish brown dorsally, yellowish brown ventrally; flagellum alternately grayish brown and yellowish brown. Thorax and tegula dark brown. Wings brown; forewing with an inverted triangular, whitish yellow spot on costa subapically, with single blackish brown dot at middle and end of cell; cilia concolorous with wings. Legs whitish yellow.

Male genitalia (Fig. 8). Uncus wide basally, becoming narrower from base to 1/3, nearly parallel-sided from basal 1/3 to 2/3, distal 1/3 expanded, with long dense setae. Gnathos with basal 1/3 sclerotized, distal 2/3 membranous. Tegumen inverted V-shaped. Valva narrow in basal 1/3, elongate elliptical in distal 2/3, with a setose carina at basal 1/3 near ventral margin; transtilla slightly dilated distally. Sacculus triangular, separate from valva, distally curved and pointed upward. Saccus triangularly shaped, pointed anteriorly. Juxta broadly U-shaped; lateral lobes slender, extending outward distally. Aedeagus stout, distal 1/3 extremely sclerotized, with a large hook curved ventrad and a nearly fan-shaped plate.

Female unknown.

Distribution. China (Fujian).

Etymology. The specific name is derived from the Latin prefix magni - and the adjective hamatus, referring to the large hook of the aedeagus.

Acknowledgements

We express our cordial thanks to the anonymous reviewers for their kind suggestions. This study was supported by the National Natural Science Foundation of China (No. 30930014).

Figures

FIGURES 1 − 4. Adults of Ripeacma spp. 1. R. quadridigitata sp. nov., holotype, male; 2. R. damingshana sp. nov., holotype, male; 3. Head of R. damingshana sp. nov., paratype, male; 4. R. magnihamata sp. nov., holotype, male.